If you look up in the sky just after sunset, you will see a bright object in the sky that looks like a star or a satellite.

Be sure to eye the western sky the next few evenings for a chance to see Comet C/2023 A3 Tsuchinshan-ATLAS. The best time to view is 30-60 minutes after sunset. It will be just above and right of ...

Mars, once a planet teeming with vast amounts of water, is now a dry, desolate landscape. The evidence for this ...

A natural color view from Cassini of Saturn with its Titan moon in the foreground in August 2012. Titan's diameter is 50% ...

On Oct. 14 NASA's Europa Clipper Mission launched. It is the first detailed investigation of Jupiter's moon Europa—which is ...