For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.

The discovery of the exoplanet, a super-Earth called Kepler-735c, is all down to something called transit timing variations, ...

The Webb telescope detects a clear, hydrogen-rich atmosphere, as well as water vapor, on the hot sub-Neptune planet TOI-421 B ...

NASA is preparing to map the boundary where the solar wind meets interstellar space in its Interstellar Mapping and Acceleration Probe, set for launch sometime after September of this year.  IMAP will ...

Scientists have discovered a giant planet called TOI-6894b, orbiting a star that should be far too small to have formed it.

It had not been thought possible that such tiny, weak stars could provide the conditions needed to form and host huge planets.

A debris disk, or a protoplanetary disk, surrounds a young star and is filled with ice water, similar to what we have in the ...

The challenge in the search for habitable worlds is clear. We need to be able to identify habitable worlds and distinguish ...

In a first-ever discovery, scientists have detected water ice surrounding a young star that closely resembles our Sun. This ...

This finding has opened up new avenues for understanding the early universe and the origins of water on our planet ...

For decades it was thought that water was prevalent in the outer reaches of the Solar System early in its history, with ...

The search for life beyond Earth is a key driver of modern astronomy and planetary science. The U.S. is building multiple ...