Astronomers have discovered four planets that are just a fraction of the mass of Earth orbiting Barnard’s Star, which is 6 ...

Mars, Jupiter and Saturn are frequently seen in the night sky. But because Venus and Mercury orbit closer to the sun than Earth, with smaller, faster orbits, it's more rare for them to make an ...

Mercury retrograde is, more or less, an optical illusion. Yet it holds great weight in astrology. Here's how it might affect your sign.

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

Mercury retrograde starts Saturday, March 15 and goes through April 7. Here's what to know about how the first Mercury ...

Astronomers have identified a quartet of small rocky planets orbiting Barnard's star - one of our closest stellar neighbors - ...

As the name suggests, retrograde refers to when a planet appears to go backward in its orbit as viewed from Earth.

As the fastest-moving planet in our solar system, Mercury goes retrograde three to four times a year for about three weeks.

Mars, Jupiter and Saturn are frequently seen in the night sky. But because Venus and Mercury orbit closer to the sun than Earth, with smaller, faster orbits, it's more rare for them to make an ...

The first time you may have heard the term ‘dwarf planet’ was when Pluto got demoted to one in 2006 (RIP). However, we actually have six in our Solar System. Pluto, Ceres, Makemake, Haumea, and Eris ...

Mars, Jupiter and Saturn are frequently seen in the night sky. But because Venus and Mercury orbit closer to the sun than Earth, with smaller, faster orbits, it's more rare for them to make an ...