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Hints of the First Stars Seen in 13-Billion-Year-Old Oxygen

Scientists have spotted 13-billion-year-old oxygen in a distant galaxy—a signal of stars forming during the universe’s earliest days. Read More >>

science
Could Higgs Bosons and Primordial Black Holes Explain Dark Matter?

Without an actual discovery, it can be difficult to convince us laypeople that there’s really such a thing as “dark matter.” It seems to interact with our universe solely through gravity, and no experiment has detected it here on Earth yet. So what if there’s an explanation to what’s causing dark matter using physics that already exists, like Higgs bosons and black holes? Read More >>

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Physicists React to Stephen Hawking’s Passing

Stephen Hawking passed away yesterday in his home at age 76. Hawking popularised the deepest questions of the universe and became a pop culture icon thanks to his writing and work. His personality and ideas had a profound impact on scientists and science fans alike. Read More >>

science
New Calculation Could Spell Trouble For a Popular Theory of the Universe’s Origin

The universe began. But what did it begin from? What did it begin into? We know it began by expanding rather quickly, and ended up with lots of big galaxies made from little particles. But what happened before then? What were the laws of physics like when it all started? Read More >>

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‘Inflatable Dark Matter’ Could Explain Why We See Less Than Many Theories Predict

Many wonderful theories that explain the evolution of the universe fail because they predict more dark matter than is actually out there. Now a new paper proposes one event in the early universe that would reduce the amount of dark matter in all the theories. Read More >>

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‘Green Pea’ Galaxies May Have Reheated the Universe After Cosmic Dark Age

Swiss scientists may have found the answer to a troubling mystery about the early evolution of our universe. After the Big Bang, the universe cooled down for a billion years in a kind of cosmic dark age. But then it mysteriously reheated. Electrons and protons that had been happily joined in hydrogen atoms were ripped apart again during a period known as the “cosmic reionisation.” What could have done this? Read More >>

science
This Blast of Beads Is an Analogue for the Early Universe 

A machine shoots a blast of beads at a metal target. The result is a beautiful conical structure known as a “water bell.” It’s significant because one kind of substance (granular material) changes its behaviour to act like another substance entirely—and the universe has seen this kind of change before. Read More >>

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The Seriously Wacky Way Cosmologists Say We Could Encrypt Data

The Big Bang that created the Universe left traces of itself everywhere—an afterglow known as the cosmic microwave background (CMB). You’ve probably never thought to ask whether there’s a practical use for the CMB, but lo and behold, cosmologists found it: data encryption. Read More >>

science
The LHC is Now Colliding Lead at the Highest-Ever Energies

The Large Hadron Collider has been back online and pushing the limits of physics again for a few months now. But it’s about to enter a new phase, colliding lead ions at twice the energy that any collider has ever achieved in the past. Read More >>

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Physicists are Backing Away From the Biggest Discovery of the Century

Back in March, a group of physicists announced the first direct evidence of the Big Bang in a splashy press conference followed by Nobel prize forecasts and champagne. But scientists have since questioned the discovery, and a new paper suggests the signal detected was not evidence of the Big Bang but instead largely, if not entirely, from interstellar dust. Oops. Read More >>

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Big Bang Discovery Researchers Backtrack on Original Claims

Remember how a Harvard team found the first direct evidence of cosmic inflation right after the Big Bang? Well, now it's published its findings—and it's backtracking on its original claims. Read More >>

monster machines
The Sensor Array That Made the Big Bang Discovery Possible

Astronomers have long sought tangible proof that the Big Bang caused the universe to violently and exponentially expand in the first few milliseconds of its existence. Now they have it, thanks in part to a radio telescope in Antarctica that recently detected primordial gravitational waves, the "smoking gun" evidence of the Big Bang. This changes everything. Read More >>

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Why the Big Bang Discovery is Even More Important Than You Think

As you've probably heard, yesterday a team of scientists identified evidence of cosmic inflation right after the Big Bang, a finding which helps explain how the entire universe originated. Amazing as that sounds, it's way more important than you even imagine. Read More >>

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Astronomers Discover First Direct Proof of the Big Bang Expansion

Somebody's going to win a Nobel Prize. At least that's what the physics community is saying after the announcement on Monday that a Harvard team has found the first direct evidence of cosmic inflation right after the Big Bang. It's more proof that the Big Bang really was the beginning of it all. Read More >>