Forget roses and chocolates-instead, feast your eyes on a celestial show and take in the beauty of the cosmos. This […] ...

If an extraterrestrial civilization existed with technology comparable to ours, would they be able to detect Earth?

Earth”, which could be home to alien life. The planet, known as HD 20794d, orbits in the habitable zone of a star similar to the sun, and is 20 light years away from our solar system - making it a ...

All month, four planets — Venus, Saturn, Jupiter and Mars — will appear to line up and be bright enough to see with the naked eye ... planet and the sun are directly opposite each other with ...