Astronomers have been left puzzled by the discovery of an unusually large planet orbiting a remarkably small star, a cosmic ...

WASHINGTON (Reuters) -Astronomers have spotted a cosmic mismatch that has left them perplexed - a really big planet orbiting a really small star. The star is only about a fifth the mass of the sun.

A restless Moon, Mercury changing signs, and Jupiter pairing with Mars give each zodiac sign something they finally need to ...

Ever wonder how NASA captures stunning images from deep space probes? Interplanetary scientist John Spencer takes us behind ...

Planets, Solstice, and the Galaxy Venus and Saturn separate, while Mars hangs out in the evening. Plus the June solstice, and dark skies reveal our home galaxy in all of its glory.

“In the universe, an absolute vacuum is rare, and most of the universe is very low-density high-temperature plasma,” said Chris Impey, an astronomer at the University of Arizona. “In principle, sound ...

Around 16-17 June, Mars will appear to pass close to Regulus, the bright star at the heart of the constellation Leo, the lion ...

On June 6, Venus thankfully moves back into her home sign of Taurus. After starting off the month with a bit of drama, this ...

Mercury, Venus, Mars, and Saturn—offer prime visibility during dawn and dusk hours. Mercury, typically elusive, becomes visible in the northwest about an hour after sunset by mid-month, while Mars ...

How can fission-powered propulsion help advance deep space exploration, specifically to the outer planets like Jupiter, ...

The curious minds at What If paint a picture of Mars adorned with rings like Saturn, reshaping the planet's appearance.

A series of planets will align in the early morning skies before sunrise through July 4, including Jupiter, Uranus, Mars, Neptune, Saturn, the dwarf planet Pluto and the moon. The rare parade of ...