How many dwarf planets are there in our solar system? The recent discovery of 2017 OF201 makes the tally anywhere between ...

The Keck Observatory and NASA’s Hubble Space Telescope may have uncovered a "potential three-body system in the Kuiper Belt," ...

NASA's New Horizons spacecraft has successfully conducted the first-ever deep space stellar navigation test, while traversing the Kuiper Belt.

For Amazon, Project Kuiper is a long-term, high-stakes bet on India’s satellite broadband future. While competitors like Starlink and OneWeb have an early lead, Amazon’s deep pockets and strategic ...

For years, scientists have been scanning the icy outskirts of our Solar System for an unknown massive planet. The ...

More than $10 billion in funds are included in Trump’s tax and spending bill for NASA programs previously targeted by the ...

Astronomers have discovered a rare instance of a interstellar comet speeding through the solar system. The 3I/ATLAS was first ...

By looking at the shifting of stars in photos from the New Horizons probe, astronomers have calculated its position in the ...

In the frozen outskirts of the solar system, a reddish dwarf planet orbits in silence. Known as Sedna, it is so distant that ...

Sedna will reach its closest approach to the Sun in 2076, providing an exploration opportunity we won’t get for another ...

Earth lives in a shooting gallery, with small and large rocky bodies in abundance in our solar system. Are we in danger of ...

NASA's New Horizons spacecraft has traveled so far from Earth that the relative position of the stars is beginning to shift — a fact that could help future spacecraft navigate the galaxy on their own.