Explore Ceres, the largest asteroid in our solar system, and discover its remarkable ancient ocean and ice-rich crust.

Before arriving at the moon, the small satellite mission will use the gravity of the sun, Earth, and moon over several months ...

On this day 35 years ago, NASA's Voyager 1 spacecraft took a picture that changed how we see our planet. The iconic "Pale ...

The four planet-strong "planet parade" currently visible to the naked eye in the night sky for a short time after sunset will ...

These popular astronomy questions, answered by Astronomy magazine, will help you better understand our universe - and share ...

Take advantage of a special 6-7 planet alignment from Earth's perspective. Planets 'line up' in the skies over California in ...

For decades, Pluto was celebrated as the ninth planet of our solar system. However, in 2006, the International Astronomical ...

In August 2006, the International Astronomical Union made the controversial, but correct, decision to demote Pluto from its ...

Pluto isn't alone—it's part of the Kuiper Belt with possibly hundreds of other planet-sized objects. Because Pluto hasn't ...

Look about an hour before sunrise on Feb. 1 and find Venus, bright but very low, in the southeast, with much dimmer Mercury to its lower left. Far to Venus’s upper right shines Saturn, and ...

NASA and European scientists explain how they calculate the probability of the space rock 2024 YR4 impacting our planet, and why it’s not yet time to worry.

According to a recent YouGov poll, 35% of Americans think Pluto is not a planet. But they are all wrong—kind of. To get to ...