Scientists found two Earth-sized planets and a third candidate orbiting a nearby double star system, TOI-2267.

Researchers present strong evidence for a planet circling two brown dwarfs on a near polar path. The orbit is tilted almost ...

Look low on the southwestern horizon at sunset on Nov. 12 for a chance to see swift Mercury close to the red light of Mars in ...

In a remarkable discovery, astronomers have unearthed a six-planet system orbiting the star HD 110067, where the celestial ...

More planets are changing directions. First, Mercury circled retrograde. This week, Mars is reversing course and Neptune starts spinning forward again. Going retrograde and stationing direct are the ...

Jupiter will reach its highest point in the sky around dawn, when, from mid-northern latitudes, it will appear about 20 ...

On Christmas Eve in 2023, a European Space Agency (ESA) spacecraft captured what looks like a barcode etched into the rusty ...

Shedding light on the gravity of the situation. Most people do not realize that many of the stars and heavenly bodies they see in the sky no longer exist. In fact, many have ceased to exist for ...

A planet's year length depends on its distance from the Sun. Planets closer to the Sun have shorter years. A planet's rotation speed is unrelated to its year length. Planets' orbital speeds vary ...

Right now, we're zooming through space at incredible speeds, so why aren't we dizzy or flying off into space?  An expert ...

Stargazers can now look up and see a planetary alignment in the night sky, or what some are calling a "planetary parade," throughout January. It's a dazzling cosmic event involving Venus, Mars, ...