cosmology
- Tech
Webb Space Telescope spots early galaxies hidden from Hubble
CAPE CANAVERAL, Fla. — NASA’s Webb Space Telescope is finding bright, early galaxies that until now were hidden from view,…
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A miniature universe shows particles may emerge out of empty space
A first-of-its-kind experiment simulating the cosmos with ultracold potassium atoms suggests that in a curved, expanding universe pairs of particles…
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The ‘Brightest of All Time’ Gamma-Ray Burst Sparks a Supernova Hunt
On the morning of October 9, astronomers’ inboxes pinged with a relatively modest alert: NASA’s Swift Observatory had just detected…
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How the Physics of Nothing Underlies Everything
Most of the quantum fields that fill our universe have one, and only one, preferred state, in which they’ll remain…
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The Gaia Mission Keeps Unlocking Secrets of the Galaxy
There are probably 200 billion stars in the Milky Way, stretched across space in a disk shaped like a ninja’s…
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Researchers Made Ultracold Quantum Bubbles on the Space Station
In March 2018, researchers launched what looks like a white, cooler-sized fridge to the International Space Station. That heavy box…
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Gravitational waves could let us find tiny black holes devouring stars
A primordial black hole falling into a neutron star would sink to its centre and devour it in seconds, and…
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Twinkle, twinkle: Astronomers discover farthest star yet
Astronomers have discovered the farthest star yet, a super-hot, super-bright giant that formed nearly 13 billion years ago at the…
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4 Years On, a New Experiment Sees No Sign of ‘Cosmic Dawn’
When hydrogen atoms first formed, they absorbed and then emitted ambient 21-centimeter radiation at equal rates, which made the clouds…
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Any Single Galaxy Reveals the Composition of an Entire Universe
A group of scientists may have stumbled upon a radical new way to do cosmology. Cosmologists usually determine the composition…
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