With new instruments, astronomers are filling in all the pieces that help to explain how planets form out of extended…
Astronauts Steve Robinson and Soichi Noguchi made their preparations to head outside the space shuttle Discovery today. This spacewalk had…
Shuttle managers decided on Wednesday that Discovery's leading wing edge is safe for it to make re-entry. This is the…
NASA's Messenger spacecraft made a successful Earth flyby this week, getting a gravity boost that will propel it into the…
This Cassini image of Saturn's moon Rhea shows a bright, white spot in its leading hemisphere. This bright feature could…
Stars, stars, everywhere are stars. What's that one? Oh, it's an aeroplane flying by, oops. Moments such as this would…
In this image of Saturn, taken by Cassini, it's possible to see how Saturn's atmosphere distorts the rings right next…
Cepheid variables are one of the most accurate tools astronomers can use to measure the distance to objects in space…
Instead of being a dead, icy moon, Cassini has found that Enceladus is actually quite active. This moon of Saturn…
Greetings fellow SkyWatchers! Dark skies this week means a chance to further our in-depth look at globular clusters as we…