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Astronomy Apr 29, 2024

Neutron stars could be capturing primordial black holes

The Milky Way has a missing pulsar problem in its core. Astronomers have tried to explain this for years. One of the more interesting ideas comes from a team of astronomers in Europe and invokes dark matter, neutron stars, ...

Astronomy Apr 29, 2024

America's 'big glass' dominance hangs on the fate of two powerful new telescopes

More than 100 years ago, astronomer George Ellery Hale brought two Pasadena institutions together to build what was then the largest optical telescope in the world. The Mount Wilson Observatory changed the conception of humankind's ...

Astronomy Apr 26, 2024

Dark matter: A new experiment aims to turn the ghostly substance into actual light

A ghost is haunting our universe. This has been known in astronomy and cosmology for decades. Observations suggest that about 85% of all the matter in the universe is mysterious and invisible. These two qualities are reflected ...

Astronomy Apr 23, 2024

A first glimpse at our galaxy's magnetic field in 3D

Thanks to new sophisticated techniques and state-of-the-art facilities, astronomy has entered a new era in which the depth of the sky can finally be accessed. The ingredients of our cosmic home, the Milky Way galaxy—stars, ...

Astronomy Apr 22, 2024

Q&A: Cosmic rays, space weather and larger questions about the universe

With the naked eye, you can't see the weather in space, or feel the cosmic rays beaming down to Earth—but they can impact critical systems like our climate, computer connectivity, communications and even our health.

General Physics Apr 22, 2024

New models of Big Bang show that visible universe and invisible dark matter co-evolved

Physicists have long theorized that our universe may not be limited to what we can see. By observing gravitational forces on other galaxies, they've hypothesized the existence of "dark matter," which would be invisible to ...

Astronomy Apr 13, 2024

Physicists solve puzzle about ancient galaxy found by Webb telescope

Last September, the James Webb Space Telescope, or JWST, discovered JWST-ER1g, a massive ancient galaxy that formed when the universe was just a quarter of its current age. Surprisingly, an Einstein ring is associated with ...

General Physics Apr 9, 2024

Peter Higgs, physicist who proposed the existence of the 'God particle,' dies at 94

Nobel prize-winning physicist Peter Higgs, who proposed the existence of the so-called "God particle" that helped explain how matter formed after the Big Bang, has died at age 94, the University of Edinburgh said Tuesday.

Astronomy Apr 7, 2024

The universe's accelerated expansion might be slowing down

The universe is still expanding at an accelerating rate, but it may have slowed down recently compared to a few billion years ago, early results from the most precise measurement of its evolution yet suggested Thursday.

Astronomy Apr 6, 2024

DESI first-year data delivers unprecedented measurements of expanding universe

Scientists have analyzed the first batch of data from the Dark Energy Spectroscopic Instrument's quest to map the universe and unravel the mysteries of dark energy.

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