Astronomers may have found the long-missing half of the universe's regular matter—and it appears to have been right under our ...

Physicist Richard Lieu first explored the idea that gravity could exist without mass—now he’s got a new cosmological model that eschews the need for dark energy.

A new study in Monthly Notices of the Royal Astronomical Society by researchers including István Szapudi of the University of ...

If this scenario plays out, “the world as we know it would collapse like a house of cards,” says one theoretical physicist.

Astronomers tallying up all the normal matter—stars, galaxies and gas—in the universe today have come up embarrassingly short ...

We are the Universe trying to understand itself ... and the JWST was designed for the purpose. Its actively cooled infrared sensors stay so close to absolute zero that they can detect the faintest ...

Scientists are homing in on the nature of a mysterious force called dark energy, and nothing short of the fate of the universe hangs in the balance. The force is enormous — it makes up nearly 70 ...

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