A new explanation for the solar system's radioactive elements suggests Earth-like planets might be found orbiting up to 50 ...
New evidence shows that, far beyond Pluto, there may exist a hypothetical planet referred to as Planet X or Planet Nine.
The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space ...
Before 3I/ATLAS, the only other confirmed interstellar tourists we've seen were the now-famous, cigar-shaped 'Oumuamua' in ...
When it comes to planets in our Solar System's habitable zone, one world is too close to the Sun, another is too far and ...
TRAPPIST-1e, an Earth-sized world in the system’s habitable zone, is drawing scientific attention as researchers hunt for ...
Researchers using NASA's James Webb Space Telescope have detected the strongest evidence yet for an atmosphere on a rocky ...
New research shows how the star's powerful outbursts could help scientists assess which worlds might support life.
In a discovery that's fit for a movie, Northwestern University astronomers have directly imaged a Tatooine-like exoplanet, orbiting two suns. While obtaining an image of a planet beyond our solar ...
This is the strongest evidence yet of a rocky planet beyond our solar system with an atmosphere. Astronomers using the James ...
A rocky exoplanet outside the Earth's solar system may have an atmosphere, according to new evidence gathered by NASA ...
The cold and remote planets originally earned their label of "ice giants" to contrast their interiors from those of Jupiter ...