51动漫

Captorhinus aguti

Life

Oldest known skin fossil is from 300-million-year-old reptile

Ancient fragments of fossilised skin may help us understand how skin evolved as vertebrate animals moved from the seas onto dry land

Life

Early fossil identified as new species of Tyrannosaurus

Environment

Record growth of renewable energy in 2023 isn’t fast enough, says IEA

Christina Koch: 鈥業 come to work to do cool things like go to the moon鈥�

Christina Koch: ISS, Artemis II and human bowling in zero-gravity

mountain-yellow frogs being translocated

Life

California frog reintroduction is rare victory against fungal pandemic

Life

Some corals change sex each year so they can find mates

Wolf-Rayet stars are known to be efficient dust producers, and the Mid-Infrared Instrument (MIRI) on NASA?s James Webb Space Telescope shows this to great effect. Cooler cosmic dust glows at the longer mid-infrared wavelengths, displaying the structure of WR 124?s nebula. The nebula is made of material cast off from the aging star in random ejections, and from dust produced in the ensuing turbulence. This brilliant stage of mass loss precedes the star?s eventual supernova, when nuclear fusion in its core stops and the pressure of gravity causes it to collapse in on itself, and then explode. As MIRI demonstrates here, Webb will help astronomers to explore questions that were previously only left to theory about how much dust stars like this create before exploding in a supernova, and how much of that dust is large enough to survive the blast and go on to serve as building blocks of future stars and planets.

Space

How galactic mysteries near and far are poised to shake up cosmology

Physics

Why we should all be concerned about the shortage of science teachers

Alamy Live News. 2WB3HB1 A United Launch Alliance (ULA) Vulcan rocket launches at 2:18 AM on its maiden flight from Complex 41 at the Cape Canaveral Space Force Station, Florida on Monday, January 8, 2024. The primary payload onboard the new rocket is the Astrobotic Peregrine lunar lander, carrying multiple instruments for NASA to the moon. Photo by Joe Marino/UPI Credit: UPI/Alamy Live News This is an Alamy Live News image and may not be part of your current Alamy deal . If you are unsure, please contact our sales team to check.

Space

2024 is set to be the year of the moon, but let’s proceed with care

Health

Multiple sclerosis genes may have arisen to ward off animal infections

The same genes that cause multiple sclerosis may have protected nomadic herders from catching infections from their animals thousands of years ago

Life

Why huge ape Gigantopithecus went extinct up to 295,000 years ago

Environment

How Bolivia鈥檚 gold rush is poisoning Indigenous communities

Technology

NASA to unveil X-59 supersonic plane that makes a ‘sonic thump’

Environment

Microturbines can generate electricity from drinking water pipes