Mexico jaguar population grows 20% in eight years

Mexico's population of wild jaguars has grown 20 percent in the past eight years, according to a study released Thursday, a bit of good news for an iconic species whose numbers have been declining.

Astronomers see distant eruption as black hole destroys star

For the first time, astronomers have directly imaged the formation and expansion of a fast-moving jet of material ejected when the powerful gravity of a supermassive black hole ripped apart a star that wandered too close ...

A new Einstein cross is discovered

This study, which has combined images from the Hubble Space Telescope with spectroscopic observations from the GTC, has confirmed the existence of a new example of a gravitational lens, a phenomenon predicted by Albert Einstein's ...

Dinosaur skull turns paleontology assumptions on their head

A team of researchers at the University of Alberta has unearthed a well-preserved Styracosaurus skull—and its facial imperfections have implications for how paleontologists identify new species of dinosaurs.

Humans hot, sweaty, natural-born runners

Hairless, clawless, and largely weaponless, ancient humans used the unlikely combination of sweatiness and relentlessness to gain the upper hand over their faster, stronger, generally more dangerous animal prey, Harvard Anthropology ...

Ten-engine electric plane prototype takes off

A team at NASA's Langley Research Center is developing a concept of a battery-powered plane that has 10 engines and can take off like a helicopter and fly efficiently like an aircraft. The prototype, called Greased Lightning ...

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