August 2005 Top Story Archives



Spacewalkers Complete Gyro Replacement on Space Station »» Spacewalkers Complete Gyro Replacement on Space Station

[Monday, August 1, 2005] STS-114 Mission Specialists Soichi Noguchi and Steve Robinson continue their second spacewalk. They have completed their major task, the replacement of a Control Moment Gyro (CMG) in the International Space Station's Z1 Truss.

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NASA STS-114 Mission Status Report #13 - 1 August 2005 - 7:00 pm CDT »» NASA STS-114 Mission Status Report #13 - 1 August 2005 - 7:00 pm CDT

[Monday, August 1, 2005] STS-114 mission managers Monday gave the go-ahead for astronauts to remove two protruding gap fillers in Discovery's heat shield during a Wednesday space walk.

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NASA STS-114 Mission Status Report #14 - 1 August 2005 - 11:00 pm CDT »» NASA STS-114 Mission Status Report #14 - 1 August 2005 - 11:00 pm CDT

[Monday, August 1, 2005] Mission managers decided to remove two gap fillers that are protruding from areas between heat-shielding tile on the Shuttle's underbelly. It is a relatively simple process that can be accomplished as an add-on task to Wednesday's spacewalk.

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Status Report: MESSENGER Lines Up for Earth Swingby »» Status Report: MESSENGER Lines Up for Earth Swingby

[Monday, August 1, 2005] "Carried out by two small thrusters that poke through MESSENGER's sunshade, the maneuver pinpointed the craft for a closest approach of 1,458 miles (2,347 kilometers) over central Asia at 3:13 p.m. EDT on Aug. 2."

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NASA STS-114 Mission Status Report #15 - 2 August 2005 - 6:00 pm CDT »» NASA STS-114 Mission Status Report #15 - 2 August 2005 - 6:00 pm CDT

[Wednesday, August 3, 2005] Discovery's astronauts worked much of today on preparations for Wednesday's gap filler repair spacewalk. Transfer of materials to and from the International Space Station continued with crewmembers of both spacecraft making good progress.

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NASA STS-114 Mission Status Report #16 - 2 August 2005 - 11:00 pm CDT »» NASA STS-114 Mission Status Report #16 - 2 August 2005 - 11:00 pm CDT

[Wednesday, August 3, 2005] The crew began the day waking up to "Where My Heart Will Take Me" the theme song from Star Trek: Enterprise. The song was selected for the crew as a surprise dedication from the Deputy Shuttle Program Manager Wayne Hale.

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NASA MESSENGER Spacecraft Completes Successful Earth Swingby »» NASA MESSENGER Spacecraft Completes Successful Earth Swingby

[Wednesday, August 3, 2005] NASA's MESSENGER spacecraft, headed toward the first study of Mercury from orbit, swung by Earth today for a gravity assist that propelled it deeper into the inner solar system.

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Researcher Warns Space Weather Hole Blocks Manned Mars Mission »» Researcher Warns Space Weather Hole Blocks Manned Mars Mission

[Wednesday, August 3, 2005] Research published in the journal Space Weather warns that massive gaps in our understanding and monitoring of space weather will effectively block U.S. plans for a manned mars space mission.

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Mars Reconnaissance Orbiter To Be Launched Aboard Atlas V Rocket August 10 »» Mars Reconnaissance Orbiter To Be Launched Aboard Atlas V Rocket August 10

[Wednesday, August 3, 2005] Launch of NASA's Mars Reconnaissance Orbiter (MRO) spacecraft is scheduled for Wednesday, Aug. 10, at 7:54 a.m. EDT from Cape Canaveral Air Force Station, Fla. The launch window extends until 9:39 a.m., a duration of 105 minutes.

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NASA's Spacewalking Astronaut Steve Robinson Completes Unique Repair »» NASA's Spacewalking Astronaut Steve Robinson Completes Unique Repair

[Wednesday, August 3, 2005] With surgical precision, the crews of the Space Shuttle Discovery and the International Space Station today completed a delicate operation to remove loose material sticking out between heat-shielding tiles on the Orbiter's belly.

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UA Astronomers Find Clue to Glowing X-ray Sky »» UA Astronomers Find Clue to Glowing X-ray Sky

[Wednesday, August 3, 2005] Astronomers have found that the sky glows in very energetic X-rays. They think the X-rays are the last gasp of material being swallowed by massive black holes.

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NASA STS-114 Mission Status Report #18 - 3 August 2005 - 11:00 pm CDT »» NASA STS-114 Mission Status Report #18 - 3 August 2005 - 11:00 pm CDT

[Wednesday, August 3, 2005] After an eventful day supporting the third spacewalk of the mission, a light duty day of transfer activities, special events and time off lies ahead for the Space Shuttle Discovery crew as they begin their tenth day in space.

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NASA Says No Fourth Spacewalk Needed »» NASA Says No Fourth Spacewalk Needed

[Thursday, August 4, 2005] Mission control radioed the Discovery crew today with news that they will not need to make a fourth spacewalk to fix a thermal blanket near the Commander's left window. Mission Control and the crew agreed that it was "good news."

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New ultraviolet images from Cassini spacecraft show auroral emissions at Saturn's poles »» New ultraviolet images from Cassini spacecraft show auroral emissions at Saturn's poles

[Thursday, August 4, 2005] New images of Saturn obtained by a University of Colorado at Boulder-led team on June 21 using an instrument on the Cassini spacecraft show auroral emissions at its poles similar to Earth's Northern Lights.

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Hubble Spies a Zoo of Galaxies »» Hubble Spies a Zoo of Galaxies

[Thursday, August 4, 2005] Gazing deep into the universe, NASA's Hubble Space Telescope has spied a menagerie of galaxies. Located within the same tiny region of space, these numerous galaxies display an assortment of unique characteristics.

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NASA Clears Space Shuttle Discovery for Landing »» NASA Clears Space Shuttle Discovery for Landing

[Thursday, August 4, 2005] Space Shuttle mission managers today completed their assessment of Discovery's fitness to handle the rigors of re-entry into the atmosphere.

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Mars Express radar collects first surface data »» Mars Express radar collects first surface data

[Friday, August 5, 2005] Marsis, the sounding radar onboard ESA's Mars Express spacecraft, is collecting the first data about the surface and ionosphere of Mars.

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President Bush Comments on NASA, Shuttle Discovery, and Exploration »» President Bush Comments on NASA, Shuttle Discovery, and Exploration

[Friday, August 5, 2005] "And that's important for the American people to understand, that, one, exploration is important; two, there will be some good coming out of exploration; and, three, that we've got a new vision embraced by NASA and its pioneers."

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Space weather forecasts clear communication »» Space weather forecasts clear communication

[Friday, August 5, 2005] Through a myriad of observing systems, software and sophisticated computer models, the Airmen of space weather are able to provide several distinctive capabilities such as battlespace awareness.

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NASA Cassini Flies by Saturn's Tortured Moon Mimas »» NASA Cassini Flies by Saturn's Tortured Moon Mimas

[Friday, August 5, 2005] On its recent close flyby of Mimas, the Cassini spacecraft found the Saturnian moon looking battered and bruised, with a surface that may be the most heavily cratered in the Saturn system.

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NASA Announces Space Shuttle Discovery Landing Schedule »» NASA Announces Space Shuttle Discovery Landing Schedule

[Friday, August 5, 2005] Commander Eileen Collins and the six-member Space Shuttle Discovery crew are scheduled to land at NASA's Kennedy Space Center (KSC) at approximately 4:46 a.m. EDT, Monday. Discovery began the 13-day Return to Flight (STS-114) mission July 26.

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Collapse of Antarctic Ice Shelf Unprecedented »» Collapse of Antarctic Ice Shelf Unprecedented

[Friday, August 5, 2005] The Antarctic Peninsula is undergoing greater warming than almost anywhere on Earth, a condition perhaps associated with human-induced greenhouse effects.

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Ice shelf disintegration threatens environment, Queen's study »» Ice shelf disintegration threatens environment, Queen's study

[Friday, August 5, 2005] The spectacular disintegration of Antarctica's "Larsen-B" Ice Shelf was unprecedented since the last ice age, according to a recent study. And the disintegrating Antarctic ice could have huge implications for global warming and rising sea levels.

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NASA STS-114 Mission Status Report #21 - 5 August 2005 - 7:00 pm CDT »» NASA STS-114 Mission Status Report #21 - 5 August 2005 - 7:00 pm CDT

[Friday, August 5, 2005] Discovery astronauts and their hosts on the International Space Station undocked the Raffaello Multi-Purpose Logistics Module from the Station's Unity Node Friday and reberthed it in the Shuttle's cargo bay.

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Discovery Departs Space Station »» Discovery Departs Space Station

[Saturday, August 6, 2005] Discovery undocked from the ISS at 3:24 a.m. EDT. Pilot Jim Kelly flew the orbiter in a loop around the Station, allowing the Shuttle crew to photograph the orbiting outpost before a final separation burn moved Discovery away from the Station.

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NASA Set To Reveal Exploration Architecture Plans »» NASA Set To Reveal Exploration Architecture Plans

[Saturday, August 6, 2005] According to senior NASA sources, the space agency will begin briefing the major conclusions of the combined 60-day exploration architecture studies the week of August 15th.

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Earth's surface transformed by massive asteroids »» Earth's surface transformed by massive asteroids

[Saturday, August 6, 2005] A cluster of at least three asteroids between 20 and 50 kilometres across colliding with Earth over 3.2 billion years ago caused a massive change in the structure and composition of the earth's surface, according to new research by ANU earth scientists.

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NASA STS-114 Mission Status Report #24 - 6 August 2005 - 8:30 pm CDT »» NASA STS-114 Mission Status Report #24 - 6 August 2005 - 8:30 pm CDT

[Sunday, August 7, 2005] The crew was awakened at 7:39 p.m. CDT by "The One and Only Flower in the World" sung by the Japanese group SMAP. It was played for Mission Specialist Soichi Noguchi of the Japan Aerospace Exploration Agency (JAXA).

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NASA's New Launch Systems May Include the Return of the Space Tug »» NASA's New Launch Systems May Include the Return of the Space Tug

[Sunday, August 7, 2005] NASA planners are finalizing the configuration for the next generation cargo heavy lift launch vehicles. An integral part of these studies includes upper stages and other hardware needed to move payloads once they are in space.

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Landing Day Arrives For Space Shuttle Discovery »» Landing Day Arrives For Space Shuttle Discovery

[Sunday, August 7, 2005] "We're looking forward to coming home," Commander Eileen Collins radioed to Mission Control upon crew wakeup at 8:30 p.m. EDT today.

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Space Shuttle Discovery's Landing Waved Off for Monday »» Space Shuttle Discovery's Landing Waved Off for Monday

[Monday, August 8, 2005] Due to low clouds at the KSC landing site, NASA has waved off both landing opportunities for Discovery today. Commander Eileen Collins and the rest of the crew will return the orbiter to normal flight operations for another day.

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Discovery Astronaut Sends Podcast From Space »» Discovery Astronaut Sends Podcast From Space

[Monday, August 8, 2005] On his last day in orbit, Mission Specialist Steve Robinson sent a podcast from space before the seven-member Discovery crew returns to Earth Monday. The podcast was recorded as the Shuttle flew over the southeast tip of Indonesia.

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Proceedings from the NASA Administrator's Symposium: »» Proceedings from the NASA Administrator's Symposium: "Risk and Exploration: Earth, Sea and the Stars"

[Monday, August 8, 2005] "During this symposium, we want to examine the similarities between space exploration and other terrestrial expeditions, and examine how society accepts risk."

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Meteor impacts: Life's jump starter? »» Meteor impacts: Life's jump starter?

[Monday, August 8, 2005] Meteor impacts are generally regarded as monstrous killers and one of the causes of mass extinctions. But there is a chance the heavy bombardment of Earth by meteors during the planet's youth actually spurred early life on our planet.

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Model gives clearer idea of how oxygen came to dominate Earth's atmosphere »» Model gives clearer idea of how oxygen came to dominate Earth's atmosphere

[Monday, August 8, 2005] A number of hypotheses have been used to explain how free oxygen first accumulated in Earth's atmosphere some 2.4 billion years ago, but a full understanding has proven elusive.

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Space Shuttle Discovery Lands in California »» Space Shuttle Discovery Lands in California

[Tuesday, August 9, 2005] Space Shuttle Discovery touched down this morning at Edwards Air Force Base in California to successfully conclude STS-114. This was the first Shuttle mission to fly since the loss of Space Shuttle Columbia and the STS-107 crew on Feb. 1, 2003.

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NASA's Next Leap in Mars Exploration Ready for Launch »» NASA's Next Leap in Mars Exploration Ready for Launch

[Tuesday, August 9, 2005] NASA's Mars Reconnaissance Orbiter (MRO) is ready for a morning launch on Wednesday, Aug. 10. The MRO will arrive at Mars in March 2006 for a mission to understand the planet's water riddles and to advance the exploration of the mysterious red planet.

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Mars Reconnaissance Orbiter Launch Postponed »» Mars Reconnaissance Orbiter Launch Postponed

[Tuesday, August 9, 2005] Tomorrow morning's launch of the Mars Reconnaissance Orbiter (MRO) has been postponed by at least one day. At present, liftoff is scheduled for no earlier than 7:50 a.m. on August 11.

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NASA NEO News: Deflection Scenarios for Apophis »» NASA NEO News: Deflection Scenarios for Apophis

[Tuesday, August 9, 2005] Following is an unusually long and technical edition of NEO News. The subject is the deflection options for Apophis (MN4) as described in a new analysis by Donald Gennery, who has kindly made this draft available to NEO News.

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Gemini Uncovers Lost City of Stars »» Gemini Uncovers Lost City of Stars

[Wednesday, August 10, 2005] Like archaeologists unearthing a 'lost city', astronomers using the Gemini South telescope have revealed that galaxy NGC 300 has a large, faint extended disk made of ancient stars, enlarging the known diameter of the galaxy by a factor of two or more.

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NASA's Mars Reconnaissance Orbiter Ready for Launch on 11 August »» NASA's Mars Reconnaissance Orbiter Ready for Launch on 11 August

[Wednesday, August 10, 2005] The launch vehicle for NASA's Mars Reconnaissance Orbiter (MRO) has been cleared for flight. The launch is scheduled for Thursday, August 11. The launch window is from 7:50 to 9:35 a.m. EDT.

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Rubble-pile minor planet Sylvia and her twins - VLT NACO instrument discovers first triple asteroid »» Rubble-pile minor planet Sylvia and her twins - VLT NACO instrument discovers first triple asteroid

[Wednesday, August 10, 2005] One of the thousands of minor planets orbiting the Sun has been found to have its own mini planetary system. Astronomers have discovered the first triple asteroid system - two small asteroids orbiting a larger one known since 1866 as 87 Sylvia.

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Carnegie Mellon rover heads to Atacama Desert for final mission in 3-year search for life »» Carnegie Mellon rover heads to Atacama Desert for final mission in 3-year search for life

[Wednesday, August 10, 2005] Carnegie Mellon University researchers and their colleagues from NASA are preparing for the final stage of a three-year project to develop a prototype robotic astrobiologist, a robot that can explore and study life in the driest desert on Earth.

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NASA JSC Presolicitation Notice: Crew Exploration Vehicle (CEV) Phase II Call for Improvements »» NASA JSC Presolicitation Notice: Crew Exploration Vehicle (CEV) Phase II Call for Improvements

[Thursday, August 11, 2005] NASA/JSC is conducting a progressive competition to define, design, develop, and produce the Crew Exploration Vehicle. Phase I of this effort was a full and open competition for system requirements definition.

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Ariane 5 lifts record payload into space »» Ariane 5 lifts record payload into space

[Thursday, August 11, 2005] This morning an Ariane 5G launcher lifted off from Europe's Spaceport in French Guiana. On board was the largest telecommunications satellite ever to be placed into geostationary transfer orbit.

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Senior Management Changes in NASA's Human Space Flight Program »» Senior Management Changes in NASA's Human Space Flight Program

[Thursday, August 11, 2005] On Friday, 12 August, NASA Administrator Mike Griffin will name Bill Gerstenmaier as Associate Administrator for Space Operations. Gerstenmaier will succeed Bill Readdy, the current AA.

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NASA Office of Legislative Affairs Memo: NASA Plans for Plant and Animal Research »» NASA Office of Legislative Affairs Memo: NASA Plans for Plant and Animal Research

[Friday, August 12, 2005] "One of the conclusions reached during the ZBR stated that our research programs should place a higher priority on medical research using human subjects than on animal, cell, and tissue research."

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NASA's Multipurpose Mars Mission Successfully Launched »» NASA's Multipurpose Mars Mission Successfully Launched

[Friday, August 12, 2005] A seven-month flight to Mars began this morning for NASA's Mars Reconnaissance Orbiter (MRO). It will inspect the red planet in fine detail and assist future landers.

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NRC Space Studies Board Report: Review of Goals and Plans for NASA's Space and Earth Sciences »» NRC Space Studies Board Report: Review of Goals and Plans for NASA's Space and Earth Sciences

[Saturday, August 13, 2005] "The main sources of gaps and potential missed opportunities in some roadmaps are a shortage of scientific justification for their stated goals and an overly narrow interpretation of the presidential vision by the NASA roadmap teams."

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Hayabusa Performes Star Tracker imaging of Asteroid Itokawa »» Hayabusa Performes Star Tracker imaging of Asteroid Itokawa

[Monday, August 15, 2005] 2 years 3 months after launch in May of 2003, Hayabusa has traveled a long journey by way of Earth gravity assist in May of 2004, and will make a world's first low thrust rendezvous with a near-Earth asteroid Itokawa next month.

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Galactic survey reveals a new look for the Milky Way »» Galactic survey reveals a new look for the Milky Way

[Tuesday, August 16, 2005] With the help of NASA's Spitzer Space Telescope, astronomers have conducted the most comprehensive structural analysis of our galaxy and have found tantalizing new evidence that the Milky Way is much different from your ordinary spiral galaxy.

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Sea Ice May Be on Increase in the Antarctic: A Phenomenon Due to a Lot of 'Hot Air'? »» Sea Ice May Be on Increase in the Antarctic: A Phenomenon Due to a Lot of 'Hot Air'?

[Tuesday, August 16, 2005] A new NASA-funded study finds that predicted increases in precipitation due to warmer air temperatures from greenhouse gas emissions may actually increase sea ice volume in the Antarctic's Southern Ocean.

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NASA Scientists Closer to Timely Space Weather Forecasts »» NASA Scientists Closer to Timely Space Weather Forecasts

[Tuesday, August 16, 2005] Scientists funded by NASA have made big strides in learning how to forecast "all clear" periods, when severe space weather is unlikely.

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Dawn at the Huygens Site »» Dawn at the Huygens Site

[Tuesday, August 16, 2005] Titan's equatorial latitudes are distinctly different in character from its south polar region, as this image shows.

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NEO News (08/17/05) Asteroid experts meet at ACM-2005 »» NEO News (08/17/05) Asteroid experts meet at ACM-2005

[Tuesday, August 16, 2005] Clark Chapman reports from the Asteroids/Comets/Meteors 2005 meeting, held last week in the resort town of Buzios, east of Rio de Janeiro, Brazil. This ACM-2005 is the latest of the every-three-year meetings begun in Sweden in the early 1980s.

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NASA Return to Flight Task Group Final Report Issued »» NASA Return to Flight Task Group Final Report Issued

[Wednesday, August 17, 2005] "Although the scorecard is impressive, it alone does not tell the complete story. The Task Group applauds NASA for its efforts, but urges continued vigilance is required to prevent another accident."

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NASA Return to Flight Task Group Final Report: Annex A.2 Individual Member Observations »» NASA Return to Flight Task Group Final Report: Annex A.2 Individual Member Observations

[Wednesday, August 17, 2005] "... we believe that the leadership and management climate that governed NASA's return-to-flight effort was weak in some important ways that bear discussion."

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Mars Reconnaissance Orbiter Mission Status 17 August 2005 »» Mars Reconnaissance Orbiter Mission Status 17 August 2005

[Wednesday, August 17, 2005] NASA's Mars Reconnaissance Orbiter, launched on Aug. 12, has completed one of the first tasks of its seven-month cruise to Mars, a calibration activity for the spacecraft's Mars Color Imager instrument.

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Supernova 1987A: Fast Forward to the Past »» Supernova 1987A: Fast Forward to the Past

[Wednesday, August 17, 2005] Recent observations with Chandra have revealed new details about the fiery ring surrounding the stellar explosion that produced Supernova 1987A. The data give insight into the behavior of the doomed star in the years before it exploded.

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NASA's SWIFT Satellite Finds Newborn Black Holes »» NASA's SWIFT Satellite Finds Newborn Black Holes

[Thursday, August 18, 2005] Scientists using NASA's Swift satellite say they have found newborn black holes, just seconds old, in a confused state of existence. The holes are consuming material falling into them while somehow propelling other material away at great speeds.

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NASA Targets March For Next Space Shuttle Mission »» NASA Targets March For Next Space Shuttle Mission

[Thursday, August 18, 2005] NASA is targeting March for the next Space Shuttle mission (STS-121). The mission will be the second test flight to the International Space Station in the Shuttle Return to Flight sequence.

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SOHO, History's Greatest Comet Hunter, Discovers 1,000th Comet »» SOHO, History's Greatest Comet Hunter, Discovers 1,000th Comet

[Thursday, August 18, 2005] Toni Scarmato, a high school teacher from Italy, discovered Solar and Heliospheric Observatory (SOHO) spacecraft's 999th and 1000th comet on August 5, when two comets appeared in the same SOHO image.

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Saturn's rings have own atmosphere »» Saturn's rings have own atmosphere

[Thursday, August 18, 2005] Data from the NASA/ESA/ASI Cassini spacecraft indicate that Saturn's majestic ring system has its own atmosphere - separate from that of the planet itself.

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Transcript of NASA Press Briefing With Mike Griffin and Bill Gerstenmaier 18 August 2005 »» Transcript of NASA Press Briefing With Mike Griffin and Bill Gerstenmaier 18 August 2005

[Friday, August 19, 2005] "I have conferred with the folks as recently as yesterday who provided those comments to us, and I believe that they fully understand the spirit of openness and honest acceptance that we're trying to convey to their issues."

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NASA Cassini Titan Flyby - Aug. 22, 2005 »» NASA Cassini Titan Flyby - Aug. 22, 2005

[Friday, August 19, 2005] On Aug. 22, the Cassini spacecraft will fly by Titan at approximately 3,669 kilometers (2,280 miles) above the moon's surface. The spacecraft is expected to return high-resolution images of Titan's high southern latitudes.

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Orbitec Response to 11 August 2005 memo on »» Orbitec Response to 11 August 2005 memo on "NASA Plans for Plant and Animal Research"

[Friday, August 19, 2005] "We hope that NASA is not making irrational, near-term decisions that break the pipeline of national intellectual capabilities and biological science abilities that make the exploration "journey" more risky and less safe."

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Six Years Into Its Mission, NASA's Chandra X-ray Observatory Continues to Achieve Scientific Firsts »» Six Years Into Its Mission, NASA's Chandra X-ray Observatory Continues to Achieve Scientific Firsts

[Monday, August 22, 2005] In August 1999, NASA's Chandra X-ray Observatory opened for business. Six years later, it continues to achieve scientific firsts.

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Space Elevator Update »» Space Elevator Update

[Monday, August 22, 2005] "We now have 7 teams that have climber hardware and are intending to show up for the 2005 competition. The competition date has been pushed back 3 weeks - we will start accepting hardware on the original Sept 30th date."

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NASA Honors High Flying X-15 Space Pioneers With Astronaut Wings »» NASA Honors High Flying X-15 Space Pioneers With Astronaut Wings

[Tuesday, August 23, 2005] NASA awarded astronaut wings today to three 1960's-era test pilots. The pilots were never recognized for going beyond the atmosphere and into space flying the X-15 experimental aircraft.

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Climate Model Links Higher Temperatures to Prehistoric Extinction »» Climate Model Links Higher Temperatures to Prehistoric Extinction

[Wednesday, August 24, 2005] Scientists at the National Center for Atmospheric Research (NCAR) have created a computer simulation showing Earth's climate in unprecedented detail at the time of the greatest mass extinction in the planet's history.

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NASA scientists say liquid water formed recent gullies on Mars »» NASA scientists say liquid water formed recent gullies on Mars

[Thursday, August 25, 2005] "The gullies may be sites of near-surface water on present-day Mars and should be considered as prime astrobiological target sites for future exploration," ventured Jennifer Heldmann, principal author of the study.

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NASA Briefing Will Present News From A Martian Hilltop »» NASA Briefing Will Present News From A Martian Hilltop

[Thursday, August 25, 2005] NASA's Mars Exploration Rover Spirit has reached the summit of Husband Hill, part of the range the rover first observed on the distant horizon from its landing site in January 2004.

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Burning asteroids may play 'more important climate role than previously recognized' - Asteroid dust may influence weather, study finds »» Burning asteroids may play 'more important climate role than previously recognized' - Asteroid dust may influence weather, study finds

[Friday, August 26, 2005] Dust from asteroids entering the atmosphere may influence Earth's weather more than previously believed, researchers have found.

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Arctic Ocean could be ice-free in summer within 100 years, scientists say »» Arctic Ocean could be ice-free in summer within 100 years, scientists say

[Sunday, August 28, 2005] The current warming trends in the Arctic may shove the Arctic system into a seasonally ice-free state not seen for more than one million years, according to a new report.

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NASA Space Station Image of Denali (Mt. McKinley) »» NASA Space Station Image of Denali (Mt. McKinley)

[Monday, August 29, 2005] Mount McKinley, Alaska is featured in this image photographed by an Expedition 11 crewmember on the International Space Station. This view of the highest point in North America (20,230 feet) looks as if it were taken from an aircraft.

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South Polar ozone hole makes big comeback »» South Polar ozone hole makes big comeback

[Tuesday, August 30, 2005] This season's Antarctic ozone hole has swollen to an area of ten million square kilometres from mid-August - approximately the same size as Europe and still expanding. It is expected to reach maximum extent during September.

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NASA Mars Reconnaissance Orbiter Makes Successful Course Correction »» NASA Mars Reconnaissance Orbiter Makes Successful Course Correction

[Tuesday, August 30, 2005] NASA's Mars Reconnaissance Orbiter (MRO) successfully tested its main engines by making a successful trajectory adjustment for reaching the red planet on March 10, 2006.

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Cassini Finds That »» Cassini Finds That "Tiger Stripes" On Enceladus Are Very Young

[Tuesday, August 30, 2005] The Cassini spacecraft discovered the long, cracked features dubbed "tiger stripes" on Saturn's icy moon Enceladus are very young. They are between 10 and 1,000 years old.

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An Advance Look at NASA Administrator Mike Griffin's AIAA Speech »» An Advance Look at NASA Administrator Mike Griffin's AIAA Speech

[Tuesday, August 30, 2005] Editor's note: These are the prepared remarks for a speech NASA Administrator Michael Griffin plans to make on 31 August 2005 at the AIAA Space 2005 Conference & Exhibition.

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NASA Assesses Hurricane Katrina Damage »» NASA Assesses Hurricane Katrina Damage

[Tuesday, August 30, 2005] NASA is marshaling agency resources to assist Gulf Coast-area facilities that suffered damage from Hurricane Katrina. The agency is preparing to provide help for NASA employees and contractors whose homes were damaged or destroyed.

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