Rare Conjunction of Jupiter and Venus Tonight
August has been a spectacular month for astronomy, with a livelier than usual Perseids meteor shower, and five planets visible in the evening sky. Early tonight, one of the most impressive and rare sights will be visible
Fly-By Spacecraft Captures Video of Earth and Moon
The Juno spacecraft is on a mission to Jupiter and will arrive in 2016. Meanwhile, it's building up speed to get there, and that involved a fly-by of Earth last month, using the gravity of its