The Dark Energy Spectroscopic Instrument spent five years observing the sky from Arizona. Now, researchers have a trove of data to study how the universe has evolved over billions of years
Astronomers Discover a Rare Primitive Star That Provides a Chemical Snapshot of the Early Universe
PicII-503 is likely a second-generation star, born from the remnants of the very first stars, according to a new study
In a First, the World’s Most Expensive and Volatile Substance—Antimatter—Traveled by Truck
The work paves the way for longer-distance transport of the rare material so scientists can study it at other facilities
The end of the facility’s 25-year run is “bittersweet”
The invisible stuff makes up about 85 percent of all matter in the universe, but researchers know little about it
This Early-Universe Cluster of Galaxies Is Way Hotter Than It Should Be
Gas within the cluster, which existed merely 1.4 billion years after the Big Bang, is at least five times hotter than computer simulations predict it should be, a study suggests
Where Did the Big Bang Happen? And More Questions From Our Readers
You’ve got questions. We’ve got experts
Astronomers thought dark energy was a constant. But now, findings from the Dark Energy Spectroscopic Instrument provide even more evidence that it may be fluctuating
Astronomers Spot the Oldest Black Hole Ever Seen, Shedding Light on the Early Universe
Dating to just 470 million years after the Big Bang, the ancient cosmic structure could help researchers understand how the first black holes formed
The Science Behind the Multiverse in ‘Everything Everywhere All At Once’
The movie that won Best Picture imagines a reality composed of an uncountable number of universes
Construction of World’s Largest Radio Telescope Begins
Scientists will use its instruments to study the early universe
An Early Star’s Remains May Be Swirling Around a Black Hole
The first stars exploded long ago, but scientists say they’ve detected the chemical fingerprint that one of them left behind
‘Which Came First: Beer or Wine?’ and More Questions From Our Readers
You’ve got questions. We’ve got experts
New Project Aims to Create Most Detailed 3-D Map of the Universe
An instrument named “DESI” will chart up to 40 million galaxies, ten times more than any previous survey
This 13-Billion-Year-Old Supermassive Black Hole Is the Oldest Ever Found
Huge black hole is so old it offers a glimpse into the early universe, and so big it challenges ideas of how black holes form
Japan Retrieves Space Capsule Full of Asteroid Samples in Australia
The successful landing marks the completion of Japan’s Hayabusa2 mission, which studied the 3,000-foot-wide asteroid Ryugu
‘HALO’ Makes Art Out of Subatomic Particle Collisions at Art Basel
The site-specific installation by British artist duo Semiconductor revisits the universe’s first moments
Half of Our Atoms May Come From Other Galaxies
According to computer simulations, large galaxies may grow by sucking in matter smaller star clusters expel
Was the Speed of Light Even Faster in the Early Universe?
Physicists propose a way to test if light exceeded Einstein’s constant just after the Big Bang
Meet the Team of Scientists Who Discovered Gravitational Waves
This year, the geniuses behind LIGO announced that they had finally found what Albert Einstein had predicted a century ago
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