From an astrological point of view, there are hardly two words that elicit a stronger reaction than Mercury retrograde.

A recent paper suggests that if astrobiologists want to make an educated guess about what life on Venus might look like, they ...

These conjunctions aren't rare, but they get rarer with each planet added to the chain. For example, the three innermost ...

Star would be the first private mission to another planet and the first in over 30 years to directly measure Venus’s clouds.

According to NASA, multi-planet lineups are visible "every few years," but a seven-planet alignment is particularly uncommon, as each planet's orbit varies, with some moving more quickly and Mercury, ...

This Friday, all seven planets will be in the night sky for a brief period. Join the cosmic spectacle and learn where to look ...