Astronomers Keep Finding Stars That Should Be Dead. Now, We May Finally Know Why

The most massive stars in the Universe are also the shortest-lived. The more mass a star has, the more quickly it burns through its fuel reserves, resulting in lifespans that are less than around 10 million years.   This fascinating fact leads us to a puzzle. Most of these stars are found relatively close to … Read more

Everest’s Highest Glacier Lost 2,000 Years of Ice in Just 25 Years, Says New Study

The climate crisis enveloping Earth impacts the lowest depths of the sea and the most remote parts of the planet. And new research shows that it’s also causing change at the highest points of the world.   Scientists studying South Col – Mount Everest’s highest glacier – have reported that rapid ice loss is occurring … Read more

Poem: ‘Elective Affinities: Ghazal of the Muon’

Edited by Dava Sobel Elective Affinities: Ghazal of the Muon “Long-Awaited Muon Measurement Boosts Evidence for New Physics” — Scientific American, April 7, 2021 The Muon’s aberrant behavior, an extended quantum particle wobble, upends the Standard Theory, creating in Physics an existential wobble. Normally a wavelike excitation, spinning through Higgs’s gravitational field, unless caught and … Read more

Astra will launch a rocket from Florida for the 1st time today and you can watch it live

Astra will launch its first-ever mission from the Lower 48 on Saturday (Feb. 5), and you can watch the action live. The California startup plans to launch the ELaNa 41 mission from Florida’s Cape Canaveral Space Force Station Saturday during a three-hour window that opens at 1 p.m. EST (1800 GMT).  Watch it live here … Read more

Exoplanet evolution? Mini-Neptunes may shed their atmospheres and become super-Earths

New research suggests that stellar radiation is stripping away the “fluffy” atmospheres of exoplanets slightly smaller than Neptune, leaving behind their rocky cores and transforming them into worlds more closely resembling Earth.  In the 1990s, astronomers confirmed the existence of planets outside the solar system. Known as exoplanets, they are one of the most fascinating … Read more

The Science Behind Why Some of Us Can’t Grow Big Muscles After Turning 50

There is perhaps no better way to see the absolute pinnacle of human athletic abilities than by watching the Olympics. But at the Winter Games this year – and at almost all professional sporting events – you rarely see a competitor over 40 years old and almost never see a single athlete over 50.   … Read more

Fish Have ‘Talked’ For 155 Million Years, And Now You Can Hear Their ‘Voices’

All manner of croaks, chirps, and deep trombone moans permeate Earth’s waters, just like the cacophony of sounds that fill its forest air. For example, reefs are surprisingly noisy places, and many of the noisemakers are fish.   “We’ve known for a long time that some fish make sounds, but fish sounds were always perceived as … Read more

Young stars illuminate ‘Chamaeleon’ stellar nursery in new Hubble image

NASA’s Hubble Space Telescope has captured a stunning new view of a stellar nursery illuminated by the bright blue light of young stars.  This vast stellar nursery, known as the Chamaeleon Cloud Complex, stretches 65 light-years wide, occupying most of the Chamaeleon constellation, which is visible from the Southern Hemisphere. Located 522 light-years away from … Read more