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

Worlds will align for a "planetary parade" in January, with four bright and easily visible to the naked eye. But an even ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

Simpson and Chen ran mathematical models looking at how differently sized Earth-like worlds would have affected the rest of ...

15, 2025 — Hot Jupiters are giant planets initially ... Astronomers have observed Jupiter's legendary Great Red Spot (GRS), an anticyclone large enough to swallow Earth, for at least 150 years.

A handful of planets in the solar system are expected to line up in the night sky for a few days in January 2025. Here's when ...

Earth and Jupiter could be the answer. While the tidal pull of each planet on the Sun is extremely small, Stefani says that when two or more of the planets line up with the Sun – known as a ...

Four planets will be in the parade in January, while seven will align in February. Here's how to see the events.

Planetary alignments aren't rare, but they can be when they involve six of the eight planets in our solar system.

Six of our cosmic neighbors are expected to line up across the night sky tonight, in what has been dubbed a "planetary parade ...

Finding a world like Earth elsewhere in the universe might mean looking for the right kind of solar system. A new discovery ...

Sky watchers are in for a treat this month as the stars align to give amateurs a shot to see six planets at once.