The universe is a boundless stage for cosmic events that captivate astronomers and stargazers alike. Among these pheno ...

Learn about the size, temperature, and colour of each planet, and discover why Pluto is no longer considered a planet.

Mercury has long puzzled scientists as it possesses many qualities that aren't common to other solar system planets. These ...

Mars has two moons, Phobos and Deimos. Scientists still debate whether these came from asteroids that passed close into Mars' ...

Venus will pass to the north of the much-fainter bluish star Regulus (in Leo, the Lion) on the morning of Sept. 19; the planet and star will appear low in the east-northeast predawn sky, separated by ...

Our solar system consists of the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune, as well as countless asteroids and comets, that are gravitationally bound to the Sun.

January's sky brings a planet parade, Mars opposition, and the Quadrantid meteor shower. Enjoy Venus and Saturn's close ...

In fact, every planet—and every moon—in the solar system will be in the sky during ... “On April 8, Uranus, Jupiter, Mercury, Venus, Neptune, Saturn and Mars will all sit relatively close ...