Asteroids, comets and Kuiper belt are bodies smaller than planets that orbit the sun. Asteroids are composed of metals and rock, whereas comets also contain ice and dust. The Kuiper belt is a ...

Astrophysicists have been grappling with the question of how water arrived on our young planet for decades. One of the ...

For this, astronomers used two facilities: the Submillimeter Array (SMA), CfA's eight-dish collection of radio telescopes in ...

In our own solar system, the Kuiper Belt is a region of icy bodies, some of which fly through the inner solar system as comets, which languishes far from the sun at distances between 30 and 55 ...

comets and Kuiper Belt objects all along New Horizons' 5-billion-mile, 18-year journey across our solar system—which after launch in 2006 included historic flybys of Pluto in 2015 and the KBO ...

Located far beyond the orbit of Pluto, some scientists think the Kuiper Belt is the source of water for the inner solar system where Earth is located, delivered through comets billions of years ago.

Located far beyond the orbit of Pluto, some scientists think the Kuiper Belt is the source of water for the inner Solar ...

Main-belt comets (MBCs) and asteroids are fascinating celestial objects that reside in the asteroid belt between Mars and Jupiter. MBCs are unique because they exhibit comet-like activity ...

The Kuiper Belt is one of the regions from which comets are sometimes deflected in to the inner solar system. And then beyond that, there's a huge halo of icy objects called the Oort Cloud.