Somewhere beyond Neptune, the Kuiper Belt is bent. Not by much, and not in a way any known planet can account for. A study ...

NASA reveals that Jupiter's size is smaller and flatter than previously thought, changing key models of the current Solar ...

The two largest planets in our solar system, Jupiter and Saturn, also have the largest satellite systems, or the most moons.

For some time, astronomers have theorized that there is a connection between planetary mass and rotation. In the solar system ...

Dying stars may be wiping out nearby giant planets as they expand into red giants. Astronomers found that these close-in planets become increasingly rare around more evolved stars, suggesting many ...

The crew members of the nine Apollo missions to the Moon remain, to this day, the farthest-flung human beings in history. The Moon is, on average, 250,000 miles (400,000km) from the surface of the ...

Planets are born from the rotating disk of gas and dust that surrounds a star in its youth. While it is commonly accepted ...

NASA's administrator wants to reclassify Pluto as a planet, reigniting a 20-year controversy over its status in our solar ...

A newly studied planetary system appears to break the expected order of worlds, revealing an unusual arrangement that current theories struggle to explain. “Many Vile Earthlings Munch Jam Sandwiches ...

Think of it like a playground swing: if you push at the exact same rhythm that the swing naturally moves, the arc gets wider.

Explore the true scale of the Solar System in this video, which illustrates the relative sizes of the planets and their ...

Six decades ago, the Apollo flights helped scientists understand how the Moon was created. Now Artemis will usher in a new ...