On the 95th anniversary of its discovery, Pluto remains one of the most beloved and enigmatic worlds in our solar system, ...

For the first time, astronomers have imaged dozens of belts around nearby stars where comets and tiny pebbles within them are ...

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 ...

Comets, which are mixtures of ice and rock ... Observations of extrasolar systems with belts similar to the Kuiper Belt reveal that planetesimals in these belts sublimate carbon monoxide (CO).

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.

Comets, which are mixtures of ice and rock ... Observations of extrasolar systems with belts similar to the Kuiper Belt reveal that planetesimals in these belts sublimate carbon monoxide (CO).