Fallout from an Ancient Asteroid Collision Still Rains on Earth

Posted on Categories Discover Magazine

(Credit: NASA/JPL/Caltech) Extraterrestrial objects are constantly bombarding Earth; thankfully the vast majority are microscopic. Thanks to the planet’s atmosphere, we live largely unaware of this celestial fusillade, which averages about 100 tons a day and mostly burns up long before hitting the ground. From the few that do make impact, researchers can gather clues about the composition of our solar system, with the goal of understanding how planets and other b ...read more

The Arctic in the Age of Trump

Posted on Categories Discover Magazine

“I am fearful this will affect the Arctic in ways that we have not seen yet” — Margot Wallström, Minister of Foreign Affairs of Sweden Donald J. Trump walks out of the U.S. Capitol to be sworn in as America’s 45th President. (Source: White House Facebook page) Note: I’ve written this from Tromsø, Norway, where I’m covering the Arctic Frontiers conference. A version of this commentary is also scheduled to be published in the Norwegian newspaper Da ...read more

No 'Westworld' Can Contain the Real Rise of AI

Posted on Categories Discover Magazine

A train carries human visitors to the futuristic amusement park of “Westworld” populated by robot hosts. Credit: HBO Nobody would accuse the HBO show “Westworld” of being a sunny science fiction tale about artificial intelligence. The show features humanlike robot “hosts” who live, die, and live again to serve the fantasies of human guests visiting a Western-themed amusement park. But the dark premise of “Westworld” is still&n ...read more

And the Squirrels were Merry

Posted on Categories Discover Magazine

By: Russ Campbell I grew up in Fishtown, Philadelphia, an inner city grid of red-brick row homes, corner bars, candy shops, and barely-breathing factories. Fishtown was not known for its wildlife. There were birds. A wide variety, if two counts as a wide variety: big birds (pigeons) and small birds (sparrows). There were cats and an occasional dog that escaped out of someone’s yard. On rare occasions, I’d see a squirrel scampering about on the telephone pole in my backyard. This was ...read more

Thylacines: Getting Inside the Head of an Extinct Predator

Posted on Categories Discover Magazine

Benjamin, the last living thylacine (as far as we know), photographed in 1933 at Tasmania’s Hobart Zoo, three years before his death. Credit: Photographer unknown, Wikimedia Commons. While I have mixed feelings about de-extinction, particularly for animals that have been out of the picture for thousands of years (I’m looking at you, woolly mammoth), I’d argue the species with the strongest case for giving it a shot would be Thylacinus cynocephalus, better known as the Tas ...read more

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