20/10/2022

Shadow hunters capture Didymos asteroid eclipsing stars

After months of effort, astronomers have succeeded in capturing the momentary shadow cast by the Didymos asteroid, from tens of million kilometers away as it passed in front of far-distant stars—a feat of observation only ...

Microbes in Arctic soils are primed to react to climate change

Global warming is heating the Arctic faster than the rest of the planet. Svalbard, an archipelago north of Norway, is warming even faster than the remainder of the Arctic, making it a "canary in a coalmine" for climate change ...

NASA's Hubble spots twin tails in new image after DART impact

Two tails of dust ejected from the Didymos-Dimorphos asteroid system are seen in new images from NASA's Hubble Space Telescope, documenting the lingering aftermath of NASA's Double Asteroid Redirection Test (DART) impact.

How old is California's Yosemite Valley?

First-time visitors to Yosemite Valley gape in awe at the sheer granite wall of El Capitan and the neatly sliced face of Half Dome, aware, perhaps vaguely, that rain and glaciers must have taken a long time to cut and sculpt ...

Chew on this: Personalized health care for mountain gorillas

A mountain gorilla walks in the forest of East Africa's Virunga Volcanoes conservation area. It stops at a piece of wild celery, sits down, and begins to chew. It strips the vegetable's fibrous threads through its teeth, ...

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