The scene atop the hill behind Diablo Valley College’s Science Center on Sept.13 was one of curiosity and wonderment. A crowd ...

Looking for a sky event this week? Check out our full Sky This Week column. October 17: Catch open cluster M34 Jupiter stands ...

Unlike optical telescopes, ALMA observes in the millimeter/submillimeter range, between infrared and longer radio waves.

A gamma ray glow at our galaxy’s center has puzzled scientists for almost two decades. New computer simulations back the theory that dark matter could be the source.

Quasi-moons are not real moons and don't actually orbit the Earth, although they sometimes appear to do so for short periods of time, Phil Nicholson, professor of astronomy at Cornell University, told ...

Key takeaways The ability to get detailed views of distant objects in space is limited by the telescope size, so the sharpest ...