If the object really is Planet Nine, it would be larger than Neptune and exist 700 times further from the sun than Earth.

Jupiter and Mars shine in the evening, more planets gather in the morning, and the Eta Aquariid meteors join in.

Discover the planet that has the most moons. This planet is a ringed giant and the second largest in the solar system.

William Saunders, planetary scientist at NASA’s Langley Research Center, revealed that Uranus occulted a star lying about 400 ...

NASA had a rare opportunity to study Uranus’ atmosphere and rings when the ice giant passed between Earth and a distant star, ...

Credit: NASA/Advanced Concepts Laboratory NASA researchers got a rare chance to study Uranus' atmosphere and rings this month ...

View a brilliant morning star, enjoy dark skies during New Moon, and take in plenty of deep-sky targets in the sky this week.

With its beautiful rings, Saturn may be the most stunning planet in the solar system. It is the sixth planet from the sun and ...

Uranus is an ice giant planet with a thick atmosphere over a hot mantle of water, ammonia, and methane ices. Humanity has ...

Have you ever seen a watch made of meteorite? ✓ Daan goes hands-on with Christiaan van der Klaauw's Grand Planetarium ...

When a planet's orbit brings it between Earth and a distant star, it's more than just a cosmic game of hide and seek. It's an ...

Webb has two decades ahead of it, but it's already captured some stunning images. Here are 35 of our favorites.