Replacing the Space Station’s Solar Array Batteries
After completing the first of 10 spacewalks to upgrade the station, astronaut Christina Koch wrote: “The great @Space_Station battery swap series of spacewalks is underway! A joy & privilege working with @AstroDrewMorgan outside, @astro_luca as the lead for suits &…
Hubble Tracks a Galaxy on the Move
This image from the NASA/ESA Hubble Space Telescope shows the galaxy Messier 86. Despite its being discovered over 235 years ago by astronomer Charles Messier, the morphological classification of Messier 86 remains unclear; astronomers…
Milky Way’s Center Will Be Revealed by NASA’s Webb Telescope
The center of our galaxy is a crowded place: A black hole weighing 4 million times as much as our Sun is surrounded by millions of stars whipping around it at…
NASA Selects Proposals to Advance Understanding of Space Weather
NASA has selected three proposals for concept studies of missions that could help us better understand the dynamic space weather system driven by the Sun that manifests near Earth. The…
Saturn’s Rings Shine in Hubble’s Latest Portrait
Saturn is so beautiful that astronomers cannot resist using the Hubble Space Telescope to take yearly snapshots of the ringed world when it is at its closest distance to Earth.…