The catalog of known worlds beyond our solar system has crossed another threshold. NASA’s official tally now exceeds 6,000 ...

(International Gemini Observatory/NOIRLab/NSF/AURA/Shadow the Scientist; Image Processing: J. Miller & M. Rodriguez ...

NASA's TESS space telescope has discovered two 'super puffy' giant planets with the density of cotton candy.

Two massive planets may have once existed in early solar system before being ejected, leaving behind evidence in unusual ...

Since the 1970s, we've been searching for life outside Earth in our universe. Astronomers have discovered evidence of life in ...

Our solar system has two ice giants, Uranus and Neptune, but there may have been a third. According to a new study published in the journal Icarus, this extra world might have triggered a violent ...

More than 6,000 exoplanets, or worlds beyond our solar system, have so far been confirmed. The new technique involved analyzing old data from NASA's TESS satellite, focusing on fainter stars. Finding ...

Euclid is on a mission to chart one-third of the sky in the hopes of shedding light on the enduring mysteries of dark matter ...

WASHINGTON, Feb 14 (Reuters) - Astronomers have observed a planetary system that challenges current planet formation theories, with a rocky planet that formed beyond the orbits of its gaseous ...

This artist’s impressions shows the unusual set up of the solar system around the LHS 1903 star – Copyright ESA/AFP Handout Surprised astronomers said Thursday ...