Quantum Fluctuation

Black holes may transition into white holes, ejecting matter and even time back into the Universe, according to a new study by physicists from the University of Sheffield and the Universidad Complutense de Madrid.

Watching the Sun for 11 years apparently pays dividends.

Get ready to feel cosmically insignificant.

The universe's hidden mass may be made of black holes, which could wobble the planets of the solar system when they pass by

A new study by MIT physicists proposes that a mysterious force known as early dark energy could solve two of the biggest puzzles in cosmology and fill in some major gaps in our understanding of how the early universe evolved.

Primordial black holes born from density fluctuations dating back to the Big Bang have been frustratingly elusive, but a new quantum clue has been discovered...

NASA has released new images that shed light on the eating habits of supermassive black holes. NASA has released new images that shed light on the eating habits of supermassive black holes, drawing on data from the retired Spitzer Space Telescope to provide fresh insights into the behavior of these cosmic behemoths.

The different ways red giants "sing" could affect distance measurements of the universe, potentially helping soothe a cosmic headache: The Hubble tension.

The cosmic distance ladder could soon have another rung.

The new map, dubbed Quaia, includes around 1,295,502 quasars from across the visible Universe and could help astronomers better understand the properties of dark matter.

Rather than ripping up our fundamental models of the universe, the unexpectedly big and bright galaxies spied in the early universe by JWST probably have astrophysical explanations

When you look out at the Universe today, and see the vast, dark, backdrop littered with points of light that correspond to stars and galaxies, it's difficult to imagine that it used to be almost…

University of Chicago astronomer Wendy Freedman tells us how she's searching for an answer to the Hubble tension — a discrepancy between measurements of our universe's expansion that could threaten the dominant model of how the universe has grown since the Big Bang.

Absolutely empty—that is how most of us envision the vacuum. Yet, in reality, it is filled with an energetic flickering: the quantum fluctuations.

Four questions the world's first astronomical observatory named after a woman could answer

Astronomers have discovered that a quasar's spectral energy distribution isn't affected by its brightness, challenging traditional theories and emphasizing the role of accretion disk winds. Associate Professor Zhenyi Cai and Professor Junxian Wang from the Department of Astronomy at the Universit

In the Large Hadron Collider (LHC), proton and lead beams travel close to the speed of light. They carry a strong electromagnetic field that acts like a flux of photons as the beam moves through the accelerator. When the two beams at the LHC pass by close to each other without colliding, one of the beams may emit a photon of very high energy that strikes the other beam. This can result in photon—nucleus,…

According to a famous theory by Stephen Hawking, black holes evaporate over time, gradually losing mass in the form of a strange kind of radiation as the event horizon plays havoc with surrounding quantum fields.

The late physicist Stephen Hawking first asked me to work with him to develop "a new quantum theory of the Big Bang" in 1998. What started out as a doctoral project evolved over some 20 years into an intense collaboration that ended only with his passing on March 14 2018.

JWST has brought us more distant views of the early Universe than ever before. Is the Big Bang, and all of modern cosmology, in trouble?