Mercury is the month's highlight, reaching greatest elongation July 4. Also on show in the Southern Hemisphere: Mars, Saturn, ...

Can we really reach another solar system? This video explores how humanity might colonize Proxima Centauri B, our closest potentially habitable exoplanet, located in the Alpha Centauri system. We ...

Nearly 400 years ago, Galileo looked at the Pleiades star cluster through his telescope and noticed that the seven or so ...

Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new ...