Repulsive gravity at the quantum scale would have flattened out inhomogeneities in the early universe First light: The cosmic microwave background, as imaged by the European Space Agency’s Planck ...

The "afterglow" of the universe is an important piece of evidence for the Big Bang. This background radiation also provides ...

Scientists are using cosmic distortions in light to test a bold idea: that the Universe might not be as symmetrical as we’ve ...

The most recent measurement of a nearby galaxy cluster is deepening a disagreement about how fast the universe is expanding — ...

Astronomers have long sought to understand where half of the ordinary matter in the Universe is hiding. Half of the 15% of ...

So, they used the cosmic microwave background—the oldest light in the universe—as a kind of backlight. Then, they looked for tiny distortions caused by the hydrogen gas using two powerful ...

According to scientists, a real-world 'warp drive' could allow spaceships to jump between galaxies just like in Star Wars.

Webb discovered an early cosmic boom of "red monster" galaxies, surprising even seasoned researchers who thought they knew ...