America's largest impact crater wreaked havoc on the land and water. Scientists are just beginning to understand it.
'Mad' Mike Hughes — a self-taught rocket scientist and avowed flat-Earth conspiracy theorist — is launching himself into the sky again.
The first consumer product to come out of the Chernobyl exclusion zone in 33 years could help revitalize a long-neglected community — or at least get a lot of tourists drunk.
Following the hottest June ever recorded, July 2019 may have been the single warmest month in history.
What causes the sun's 11-year cycle of sunspot activity? According to two new studies, it could be literal tsunamis of plasma.
By grafting their roots together in a hidden underground network, trees could be forming giant "superorganisms" that span entire forests.
The International Space Station glides in front of the sun in this fiery photo — but where are all the sunspots?
"We know what's happening and what needs to be done," the haunting letter to the future reads. "Only you know if we did it."
The moon may be dead, but the Apollo 11 astronauts still managed to bring extraterrestrial life back to Earth. Astronomer/alien hunter Seth Shostak explains.
Apparently there's just 20 little neurons standing between reality and constant hallucinations (in mice).
More than 80% of California's iconic Joshua trees are likely to die at the hands of drought and fire over the next 50 years — but there's still time to save them from extinction.
If the first men to step on the moon had died there, Richard Nixon would have read this haunting speech.
The barrel jellyfish is named for its massive size and silly-looking head, but it's rare for researchers to get up close and personal with one. Two divers in the U.K. recently had the chance.
The world's largest iceberg turned 2 years old today (July 12) and has already drifted more than 150 miles from its Antarctic home.
Four stars that seemingly survived a massive supernova explosion are now lighter, speedier and anxious to leave their home galaxy.
More than 200,000 Facebook users say they're interested in joining a raid on Nevada's infamous Area 51 air base this summer.
Scavengers can make millions of dollars by selling the scrap metal from old shipwrecks — no matter how many human remains are desecrated in the process.
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