In a groundbreaking study published in The Astrophysical Journal, astronomers have discovered high-velocity gas clouds near ...

Unusually fast-moving gas clouds near a nearby galaxy suggest they may have come from outside the galaxy. Scientists have ...

Experience the jaw-dropping natural beauty of Norway, where the landscapes are so surreal, they feel like scenes from another ...

Water-vapor clouds have been found before in brown dwarfs, hulking objects that hover on the border between planet and star. If the results hold, K2-18b would be the first confirmed exoplanet with ...

A MYSTERIOUSLY pulsing star just keeps getting more mysterious. Giant clouds of comets? Enormous alien solar panels? A year after its discovery, new evidence still doesn’t add up.

Alien megastructures are out. The unusual fading of an oddball star is more likely caused by either clouds of dust or an abnormal cycle of brightening and dimming, two new papers suggest. Huan ...

Researchers said on Monday they have spotted a truly extreme planet beyond our solar system, a blazingly hot world a bit bigger than Neptune that orbits a sun-like star every 19 hours and appears ...

Observations from the Hubble Space Telescope suggest that a super-Earth and a warm Neptune-sized planet far beyond our solar system are blanketed by high-altitude clouds. IE 11 is not supported.