The monstrous 85-mile-wide comet C/2014 UN271 is the second most distant body originating from the Oort Cloud found to be ...

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

Scientists have unlocked one of the solar system's many secrets from an unexpected source: a planetarium show.

The icy giant is more than 10 times the size of any known comet, according to the National Radio Astronomy Observatory.

If our solar system seems stable, it's because our short lifespans make it seem that way. Earth revolves, night follows day, ...

The Oort Cloud, an expanse of icy bodies in the far reaches of our solar system, is shown here in a scene from "Encounters in the Milky Way," a show at New York City's Hayden Planetarium that ...

In the outer reaches of our solar system, far beyond the orbit of Pluto, lies Sedna, one of the most mysterious objects ever ...

Scientists have unlocked one of the solar system’s many secrets from an unexpected source: a planetarium show opening to the public on Monday. At the American Museum of Natural History last fall ...

Passing stars could trigger instability across the solar system, resulting in Earth being hauled out of its orbit.

The orange dwarf Gliese 710 is expected to come within 0.1663 light-years or 10,520 astronomical units in about 1.29 million ...

Thanks to ALMA’s powerful precision, scientists have now confirmed that comet C/2014 UN271 holds the title of the largest ...

A recent study in Icarus suggests a wandering star could disrupt our solar system. Simulations reveal that a star passing ...