The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...

If you needed a sign from the cosmos, the planets are in fact aligning for you this evening. ValleyCentral spoke to Christian Hernandez, Program Specialist at UTRGV for the Center of Excellence in ...

Stargazers will be treated to a rare alignment of seven planets on 28 February when Mercury joins six other planets that are already visible in the night sky. Here's why it matters to scientists.

However, this year a powerful new telescope is coming online that could prove once and for all that there really is a ninth planet in our Solar System ... plane like the eight planets.

According to a pre-print research paper, which is yet to be peer-reviewed, an object 8 times ... orbits of our solar system's planets, which are not quite perfectly circular, and all lie on ...

The best time to view the planets from the Northern Hemisphere will be just after sunset at around 8:30 p.m. local ... planetary parade of all seven planets in our solar system other than Earth.

All of our solar system’s planets are lining up to parade through the night sky at once. This extraordinary celestial event will see the sky scattered with seven visible planets in what is known ...