SpaceRef

SpaceRef


Solar cycle 25: the Sun wakes up

Press Release From: European Space Agency
Posted: Thursday, October 29, 2020

The Sun has entered its 25th solar cycle and is about to wake up. For the last few years our star has been pretty sleepy, with few sunspots, bright flares or massive ejections of magnetised plasma emanating from its surface. This quiet period is known as the solar minimum, but things are starting to heat up again.