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

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

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 ...

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

Exoplanet L98-59d, located far beyond our solar system, might not sound like someone’s dream destination. It likely has an underground ocean of magma, a surface temperature that reaches around 3,500 ...

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

The planet Mercury is the closest planet to the sun, and also the most difficult for spacecraft to visit and explore. This is ...

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 ...

The largest survey of exoplanets using an observatory atop Maunakea on the Big Island confirms a long-predicted relationship between planetary mass and rotation — putting a new spin on planet ...

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

As they traveled back toward Earth following a solar eclipse and a communications blackout, President Trump called the space ...