A newly found super-Earth could help provide answers as to why there are hardly any planets twice the diameter of Earth.

Like earthquakes, ripples of gas on a star's surface — referred to as stellar quakes — offer clues about what lies beneath.

Astronomers discovered that these stars get stuck “playing the same part of their tune” once their turbulent outer layer ...

Venus, the hottest planet in the solar system, is estimated to have 85,000 volcanoes, based on radar images from NASA's 1989 ...

which is surrounded by a swirling layer of liquid metal. Findings point to structural shifts in the iron sphere that raise ...

Venus may be far more geologically alive than anyone expected. New research suggests its outer crust could be churning with ...

A 444-million-year-old fossil named "Sue" preserves internal organs of Keurbos susanae, raising questions about arthropod ...

Though wildly different in so many ways, Earth and Saturn's moon Titan have something important in common. Among all the objects in the solar system, they're the only two with liquids on their ...