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NASA's exoplanet hunter TESS may have detected its first free-floating planet with a little help from Einstein.

Astronomers have spotted a mysterious exoplanet that orbits its star some 160 light-years away — which has a 350,000-mile-long tail made out of helium gas. The planet dubbed WASP-69B is quite a bit less dense than Jupiter and orbits its star every 3.9 Earth days. Thanks to its close proximity, its surface heats up […]

Scientists modeled how black holes and neutron stars form after dying stars collapse, and explained why some get a hard 'kick' into interstellar space.

The James Webb Space Telescope has observed record-breaking free-floating "failed star" and two other brown dwarfs. The discovery could help scientists better determine where the line between a planet and a star is drawn.

Astronomers have discovered a planet 13 times as massive as Earth orbiting a star nine times less massive than the sun, a disparity in size that shouldn’t exist and challenges planet formation models.

A hot Jupiter exoplanet is blowing its top like a cartoon character throwing a tantrum, creating a tail of gas that is the largest planetary structure seen outside the solar system.

Astronomers are surprised by a metal-rich, massive planet orbiting a tiny star because gas giants aren't supposed to be able to form around such diminutive red dwarf stars.

An exoplanet orbiting a young star is carving out spiral arms in the gas and dust that is birthing its planetary system.

The CHEOPS exoplanet hunter has found a distant world so hot that it has clouds of metal making it the most reflective planet ever seen.

Colorado Springs school district calling on parents to become substitutes as shortages continue. News5's Lindsey Jensen shows us why mom wanted to step up.