Over a thousand objects are now known to orbit the Sun beyond Neptune, and once again we can't imagine torturing school children by adding even a dozen of the biggest ones to the list of planets.

Mercury is known as “a personal planet,” similar to Venus and Mars. This is because they are closer to the sun and the earth astronomically, while astrologically, Thomas says they “align ...

Between February 25 and February 28, all seven planets in our solar system will be visible in the night sky. It's known as a planetary parade. You'll need a telescope for some of them, but you ...

Get closer to our solar companions with the best telescopes for seeing planets, just in time for ... this February 7 and 9 respectively, an event known as an appulse. Then, on February 24 ...

Astronomers have spotted the shiniest known planet in the Milky Way, and it has metal clouds that appear to be raining down titanium droplets. Exoplanet LTT9779 b, which orbits a star about 262 ...

Such an event is also commonly known as a "planet parade," though NASA noted that the moniker is not a technical astronomical term. The colloquial term refers to how the planets form a straight ...