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

The discovery of planets outside our solar system has reshaped humanity’s understanding of the universe. Since the confirmation of the first exoplanet around a main-sequence star in 1995, astronomers ...

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

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

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 ...

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 ...

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 ...

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 ...

A new analysis of Kepler data shows that one-third of small stars called M dwarfs may have the potential to host life. When you purchase through links on our site, we may earn an affiliate commission.

An orrery is a moving model of a planetary system. Daniel Fabrycky, University of California at Santa Cruz, created two animated orrerys to display the 1,235 Kepler planet candidates. 1,235 Planet ...