Asteroids are usually grouped into three main types based on what they are made of: C-type, S-type and M-type.

Why do we have a special day to celebrate space rocks? On June 30, 1908, a massive explosion over Tunguska in Siberia ...

Ceres holds plenty of water to sustain life and can also act as propulsion fuel. A study has proposed building a space ...

Dawn over Ceres, a mission of humankind. In December 2003, the Hubble Telescope spotted something peculiar on the surface of Ceres, a dwarf planet in the asteroid belt between Mars and Jupiter.

A team of researchers has outlined how a new "direct fusion drive" propulsion system could allow us to reach Sedna this ...

The assistant did not initially add Pluto, the far-flung dwarf planet companion at the edge of the solar system — or the ...

Asteroids, often overlooked, hold vital clues about our solar system's formation and potential future. Missions like ...

What was supposed to be a two-year stint turned into a long-term love story with Luxembourg. Ola, originally from Egypt and a ...

The asteroid, about a third of a mile wide at its equator, poses no immediate threat to our planet. But hundreds of years from now, there is a small chance that Bennu could slam into Earth.

Dozens of NASA's missions to explore the cosmos could be in jeopardy under a budget proposal from the Trump administration.

An enormous asteroid—big enough to leave a six-mile-wide crater and darken the world with dust if it hit Earth—will harmlessly zip by our planet on April 29. The object, called 1998 OR2, is at ...

In 2006, updated research led to Pluto being controversially demoted to dwarf planet status by the International Astronomical Union. The reasoning was that Pluto's location in the far-flung Trans ...