Ceres, with its heavily cratered and dimpled surface, appeared to be a dry, rocky body ... understanding of icy bodies in the ...

A Southwest Research Institute-led team combined compositional data of primitive bodies like Kuiper Belt objects, asteroids ...

Solar system formation models using measurements of organics from comet 67P/Churyumov-Gerasimenko and the most widely adopted solar composition ratios did not produce the dense, rocky Pluto-Charon ...

Today, we know of more than 5,000 exoplanets: planets outside our solar system that orbit other stars. While the effort to ...

For nearly 40 years, scientists have generally agreed that Earth's Moon formed from debris after a massive collision with our ...

Why does Jupiter look like it has a surface – even though it doesn’t have one? – Sejal, age 7, Bangalore, India ...

Tiny grains from the asteroid Ryugu are helping scientists uncover secrets about how the outer regions of our solar system ...

Emerging evidence suggests that plate tectonics, or the recycling of Earth's crust, may have begun much earlier than previously thought — and may be a big reason that our planet harbors life.

Recent data from the James Webb Space Telescope (JWST) suggests that a planet orbiting a small, red star 35 light years away ...

Astronomers have discovered a rocky Earth-like planet around a white dwarf star, hinting at our planet's future about eight billion years from now.

Pluto. Due to its large mass, it would have a great internal energy that could sustain, for example, subsurface oceans. Its orbit would be very distant, much beyond Neptune, and much more inclined ...