Venus" exoplanet 47 light-years away, with a thick atmosphere, challenging previous planetary classifications.

Six planets are parading across the sky, appearing as some of the night's brightest stars. A few easy tips can help you ...

When scientists first found Enaiposha, they thought it was a mini-Neptune, a small gas planet with an icy core.

Astronomers using the James Webb Space Telescope reveal GJ 1214 b, a unique exoplanet with a dense carbon dioxide atmosphere, ...

Starting at 12:30 p.m. ET (1730 GMT) on Saturday (Jan. 25), astrophysicist Gianluca Masi of the Virtual Telescope Project ...

Venus and Saturn will appear extraordinarily close together in the night sky overnight on Jan. 17 during a celestial event ...

The new moon of January will be at 7:36 a.m. Eastern Time on Jan. 29, according to the U.S. Naval Observatory, and two days ...

Alignments of five or more planets are rare—there will be two more featuring five or more planets this year, but after that ...

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

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