For years, astronomers have been searching for a mysterious ninth planet lurking in the dark outer reaches of our solar ...

“We find that both exhibit strong linearly increasing trends, coupled with a large surge in magnitude between 330 and 220 ...

Sunspot region 4114 has unleashed its most powerful solar flare yet — an X1.9 class that erupted late June 19, triggering shortwave radio blackouts across the Pacific Ocean, including parts of Hawaii.

#2. The Moon came from Earth. It didn’t form beside our planet, and Earth’s gravity didn’t capture it. The latest theory says ...

The image, captured by NASA ’s Mars Odyssey orbiter, is the first of its kind: a volcano on the Red Planet seen on the ...

NASA’s Voyager 1 spacecraft will achieve an extraordinary milestone, becoming the first human-made object to reach a full ...

Using the James Webb Space Telescope (JWST), astronomers have peered deep into one of the Milky Way's most radiation-intense ...

Spurred by rising utility bills, St. Peter’s-San Pedro Episcopal Church in Salem, Mass., looked for alternatives. Its “Heaven ...

Summer officially begins in the Northern Hemisphere on June 20 with the summer solstice, the day with the greatest amount of ...

ESA’s Proba-3 mission has achieved a spacefaring marvel: two satellites flying in perfect formation to mimic total solar ...

Latest agreements add to country’s initiative in long-term surveillance system to protect communications, power grids.

Could a rogue star disrupt our peaceful solar system? Scientists are keeping a close eye on the galactic neighborhood, and ...