The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...
In February, six planets will align in the night sky — Saturn, Mercury, Neptune, Venus, Uranus, Jupiter and Mars — and be mostly visible to the naked eye. We find out how to see and more about this ...
Baker said that there are other astronomical events that may be more interesting than the parade of planets. Baker said Mars ...
An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...
Worlds with liquid water could have formed just 200 million years after the big bang from the remains of the earliest ...
Stargazers will be treated to a rare treat this month when six planets will "align" in the night sky for an eye-catching ...
Kepler was one of the most successful exoplanet-hunting missions so far. It discovered 2,600 confirmed exoplanets—almost half ...
Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but get a telescope and you can spot Neptune and Uranus.