Earth is constantly bombarded by fragments of rock and ice, also known as meteoroids, from outer space. Most of the meteoroids are as tiny as grains of sand and small pebbles, and they completely burn up high in the atmosphere. You can see meteoroids larger than about a golf ball when they light up as meteors or shooting stars[1] on a...
AI search answers are the fast food of your information diet – convenient and tasty, but no substitute for good nutrition
If you have used Google lately and been lucky – or unlucky – enough to encounter an answer to your query rather than a bunch of links, you have been subjected to something called AI Overviews[1]. This is a new core feature that Google has been rolling out, a move widely anticipated since the company’s experiments with its LaMDA[2]...
Scientists and Indigenous leaders team up to conserve seals and an ancestral way of life at Yakutat, Alaska
Five hundred years ago, in a mountain-rimmed ocean fjord in southeast Alaska, Tlingit hunters armed with bone-tipped harpoons eased their canoes through chunks of floating ice, stalking seals near Sít Tlein (Hubbard) glacier. They must have glanced nervously up at the glacier’s looming, fractured face, aware that cascades of ice could thunder...
Scientists call the region of space influenced by the Sun the heliosphere – but without an interstellar probe, they don’t know much about its shape
The Sun warms the Earth, making it habitable for people and animals. But that’s not all it does, and it affects a much larger area of space. The heliosphere[1], the area of space influenced by the Sun, is over a hundred times larger[2] than the distance from the Sun to the Earth.
The Sun is a star that constantly emits a steady...