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Science & Tech
Explore the discoveries that reveal how the world works, alongside the technologies that extend, reshape, and sometimes challenge what’s possible.
With nearly 400 black hole events from gravitational waves, we can begin to infer their origins. At least two different populations emerge.
The history of atoms in the Universe is our own history: without them, there would be no us. So how do we piece their cosmic story together?
For all we know, the cosmos could truly be infinite in scale. But the observable part of our Universe? It's finite, and its size is known.
The LIGO facilities in the U.S. are the most sensitive gravitational wave detectors in the world. Their future remains uncertain.
We used to think the Big Bang started it all. Then we realized that something else came before it, erasing everything that existed prior.
At "only" 25 meters in diameter, the Giant Magellan Telescope is the smallest of three current projects. That might make all the difference.
Using the newest large-scale structure data, a team of researchers announced a huge cosmic anisotropy in Nature. Too bad it's wrong.
Over 800,000 fireworks explode in under an hour in the world's largest fireworks shows. How do natural auroral displays compare in energy?
65 million years ago, a massive asteroid struck Earth, causing a mass extinction. Without advance warning, could anyone have spotted it?
With ~400 billion stars in the Milky Way and 6-20 trillion galaxies overall, that makes for a lot of stars. But not as many as you'd think.
The first one, NGC 1052-DF2, was mired in controversy. With four examples now, there only remains one possible escape. What does nature say?
Over 10 billion years in the past, an ultra-massive galaxy cluster lenses objects behind it. That has big implications for dark matter.
At 240 million light-years away, galaxy NGC 1277 hasn't formed new stars in over 10 billion years. Could it contain the first stars' ashes?
We live on Earth, orbiting the Sun, part of our Solar System, within the Milky Way. But what's our membership status on even larger scales?
When it comes to the big question of our cosmic origins, inflation is our leading theory. But did string theory ultimately cause inflation?
Interstellar comet 3I/ATLAS has an ancient age, but not for the reason most commonly touted. These three lines of evidence are far stronger.
Globular clusters are some of the most ancient cosmic relics that still survive in our Milky Way today. Famed Terzan 5 isn't one of them.
With targets from all across the Universe, focusing a space telescope — with so many moving parts — is challenging, but doable. Here's how.
Despite their rarity, boron and beryllium can both be detected within white dwarf atmospheres. What does their presence and abundance imply?
When JWST opened its eyes, it spied a huge number of Little Red Dots. What we saw inside was a puzzle, but what's missing could solve it.