Venus is often referred to as Earth's sister planet. But if this were true, how can the two planets in some respects be so radically different? Well as it turns out, the answer may in fact lie in the ...

A rare celestial event will brighten Texas skies on Friday, April 25, as two planets join the crescent Moon to form a smile ...

A team of astronomers claims to have sniffed out a “biosignature” in the atmosphere of a distant planet called K2-18b. But not everyone agrees that it signals life.

Venus, was a mystery. The dense, featureless clouds shrouding the planet made it impossible to determine the rate of its rotation, much less its geography. Even its distance was in question ...

Venus will pass between the Earth and sun on Saturday during what's called an inferior conjunction. The moment of conjunction will happen at around 9 p.m. EDT, but don't plan on seeing the linkup.