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

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 ...

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

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 ...