The dinosaurs' extinction was spurred by an asteroid that struck Earth. By studying the crater, scientists now know what happened after the...

Extinct Australian kangaroos weighed more than 250 pounds and had powerful jaws to crunch through tough vegetation, much like today's giant...

Just months after closing out the 15-year-long Opportunity rover mission on Mars, Cornell University astronomer Steve Squyres is taking advantage of a new opportunity: the post of chief scientist at Amazon billionaire Jeff Bezos' Blue Origin space venture. Today Blue Origin confirmed that Squyres, 63, will be joining the company, which is headquartered in Kent, Wash. Squyres has been involved...

Water has been discovered for the first time in the atmosphere of an exoplanet with Earth-like temperatures that could support life as we know it, scientists revealed Wednesday. Eight times the mass of Earth and twice as big, K2-18b orbits in its star's "habitable zone" at a distance -- neither too far nor too close -- where water can exist in liquid form, they reported in the journal Nature...

Of all the dire forecasts she’s heard about the climate crisis, there is one that Arielle Martinez Cohen can’t get out of her mind. The report, from an Australian think tank, projected that if nothing is done, civilization could collapse by 2050. “I will be 49 in that year,” says the 17-year-old activist. “It makes...

As our food supply faces more stress, behavioral scientist Magnus Söderlund said, humans might consider eating...

Prostate cancer is one of the deadliest that men in the US get. A new study of 9/11 first responders with prostate cancers shows how it may...

Former NYPD officer Johnny Walker is dealing with stage 4 colon cancer after responding to the call on September 11,...

Move aside, Musk. Within four years, the Virgin honcho wants to send people to space every 32...

A study published Tuesday identifies a total of three unique electric eel species that descended from one common ancestor millions of years...

The smaller of Mars' two moons, Deimos, was named after the Greek god of terror — but the way former NASA flight surgeon Jim Logan sees it, Deimos could be a comfort zone for space settlers. "The Mars-facing side of Deimos is probably the most valuable real estate in the solar system," Logan, co-founder of the Space Enterprise Institute, said today at Seattle's Museum of...

India’s launch vehicle carrying Chandrayaan-2 lifted off from Sriharikota, India, in late July...

People have been modifying Earth – as in these rice terraces near Pokhara, Nepal – for...