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Ghost light among galaxies stretches far back in time, finds NASA study

In giant clusters of hundreds or thousands of galaxies, innumerable stars wander among the galaxies like lost souls, emitting a ghostly haze of light.

Why nuclear fusion is so exciting?

The Lawrence Livermore National Lab in California last week achieved fusion with a net energy gain, the U.S. Department of Energy reported on Thursday.

A trip to the sun could reveal “ultralight” dark matter if it exists

Sending an atomic clock onboard a spacecraft to fly close to the sun might be the trick to uncovering the nature of dark matter,...

Astronomers discover enigmatic cosmic explosion

Gamma-ray bursts are the most powerful explosions in the Universe, resulting from either collapsing stars or from the collision of two compact stellar remnants.

Early dark energy could explain the crisis in cosmology

In 1916, Einstein finished his Theory of General Relativity, which describes how gravitational forces alter the curvature of spacetime. Among other things, this theory predicted...

Scientists use quantum computing to observe entanglement

For the first time, scientists sent quantum information across a quantum system in what could be understood as traversing a wormhole.

Scientists discover a black hole jet, halfway across the universe, pointing straight toward Earth

Astronomers identified an extremely bright black hole jet, halfway across the universe, pointing straight toward Earth.

Diamonds and X-rays open a new window into the Earth’s inner core

Scientists have succeeded, for the first time, in measuring the speed of sound of pure iron under pressures similar to the Earth's inner core boundary.

Physicist strikes gold, solving 50-year lightning mystery

The chances of being struck by lightning are less than one in a million, but those odds shortened considerably this month.

Scientists discover an exoplanet atmosphere never seen before

New observations of WASP-39 b reveal a never-before-seen molecule in the atmosphere of a planet — sulfur dioxide — among other details.