The space rock came as close as within 4.15 million miles from our planet, according to NASA's Jet Propulsion Laboratory.

Evidence that rocky planets beyond Jupiter formed as rapidly, and at the same time, as the inner planets could transform our understanding of how planets take shape — not only in our solar system, but ...

Astronomers witness first moments of planet formation as rock grains crystallize around distant star HOPS-315.

The main asteroid belt, located between the orbits of Mars and Jupiter, makes up 0.05 percent the mass of Earth. The asteroids there can range greatly in mass, with the four largest ones — Ceres ...

Asteroid belts of just the right size are friendly to life Date: November 1, 2012 Source: Space Telescope Science Institute (STScI) Summary: Solar systems with life-bearing planets may be rare if ...

A new "main-belt comet" — a comet-like object masquerading as an asteroid in the asteroid belt between Mars and Jupiter — has been identified, bringing the tally of these beguiling objects up ...

The asteroid belt, a ring of rubble between Mars and Jupiter, has sometimes been written off as discarded leftovers from the solar system's start. But new research published in the journal Nature ...

The next waypoint on Psyche's voyage will be a flyby of Mars in May 2026. Officials expect Psyche to keep that date, which is critical for using Mars' gravity to slingshot the spacecraft deeper into ...

The first asteroid belt ever seen outside the solar system is more complex than expected, astronomers found, using observations by the James Webb Space Telescope. Looking at the warm dust around a ...

The asteroid belt, hanging out between Mars and Jupiter, is not like the cluttered debris field in “The Empire Strikes Back.” It may contain millions of rocky and metal objects, but the ...

Our asteroid belt is home to more than a million space rocks, varying in size from a dwarf planet to dust particles, which float between Jupiter and Mars.

The asteroid belt in our solar system, located between Mars and Jupiter, is a region of millions of space rocks that sits near the “snow line,” which marks the border of a cold region where ...