Stories, updates, insights, and original analysis from The Planetary Society.
Today Mars made its closest approach to the Sun -- as seen from Earth, that is. Why is this important?
Two spacecraft that keep their ever-watchful eyes on the Sun -- NASA's Solar Dynamics Observatory (SDO) and JAXA's Hinode -- were doing their thing, when something large wandered past: the Moon.
SOHO was launched more than 15 years ago to study the Sun, primarily; but a side benefit of its constant observation of the Sun has been its ability to notice
A good start to my day today: The New York Times' Lens Blog featured the
The animation I posted yesterday, of a huge coronal mass ejection exploding away from the Sun, caused several people to ask if it could do Earth any harm.
The Sun just spat out a huge coronal mass ejection, an event made visible by the watchful cameras on SOHO.
Planetary Society volunteer Ken Kremer reports for us from the Kennedy Space Center, where he is covering the launch of Space Shuttle Endeavour, set to launch this weekend.