NASA’s launching a satellite constellation this month to study the solar wind in 3D

The sun, for all its glitz, tends to hide behind a veil of mystery. For instance, its outer atmosphere, the corona, appears to be hotter than its surface — like, way hotter — and scientists aren’t sure why. There’s also a big puzzle concerning how the solar wind, which is a stream of charged particles … Read more

Best satellite imagery of 2024

Earth has never been more observed, with swarms of spacecraft providing nonstop satellite imagery of our planet. And there’s some amazing imagery to look back on this year! From historic hurricanes to a total solar eclipse, here are 12 breathtaking sights captured by NOAA’s GOES satellites in 2024. The 2025 EarthSky Lunar Calendar is now … Read more