and two days later a young moon will pass near Saturn and near Venus as they cluster together in the evening sky. A new moon is when the sun and moon share the same celestial longitude, a position ...

On this date, Jan. 29, 1859, American astronomer William Cranch Bond died. Cranch and his son, George Phillps Bond, ...

Titan is the only moon in our solar system with a significant atmosphere. Now we have a very good idea of how this dense ...

Twenty years ago, the Huygens probe achieved humanity's first landing on a moon in the outer solar system when it touched down on Titan.

To see the moon occult Saturn one must be in Asia ... Jupiter, meanwhile, is almost due north by 9 p.m.; the planet transits at 9:20 p.m. and in Melbourne is about 31 degrees high, and sets ...