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General Physics 10 hours ago

Horizon edge states gain finite description in string theory calculation

Modern physics theories highlight the key role of horizons—boundaries beyond which information cannot reach an observer—in a variety of cosmological and gravitational phenomena. Two renowned examples of these boundaries are ...

Astronomy 14 hours ago

Einstein Probe detects mysterious X-ray transient that doesn't fit any known class

Astronomers have reported the discovery of an unusual X-ray transient detected by the Einstein Probe that does not fit any known class of cosmic explosions. The paper presenting its multiwavelength analysis was published ...

Astronomy Jun 22, 2026

Are asteroid-mass black holes hiding in the cosmic gamma-ray glow?

There are multiple ways to form black holes. The one most commonly taught in high school physics classes is that they are created from the collapse of a dying star. But there is another class of black holes, known as primordial ...

Astronomy Jun 22, 2026

Webb spots the birth of a giant galaxy and a supermassive black hole

Astronomers have used the James Webb Space Telescope to catch an extraordinary glimpse of a massive galaxy taking shape in the early universe. They identified a compact group of at least six galaxies that are likely to merge ...

Astronomy Jun 22, 2026

Bow-and-arrow-shaped radio galaxy discovered by citizen scientist

Astronomers have discovered a "remarkable" bow-and-arrow-shaped radio galaxy with an enormous arc-like structure extending nearly 1.8 million light-years across. The newly identified system, detailed in a new paper published ...

Other Jun 20, 2026

Saturday Citations: Intermittent fasting and chronic stress; macroscopic entanglement; gamma-ray bursts

Researchers reported this week a deadly outbreak of plague in Siberia 5,500 years ago, revealing that Yersinia pestis evolved lethal genetic traits far earlier than suspected. A drug developed for heart tissue repair may ...

Astronomy Jun 19, 2026

Bullet Cluster observations reopen dark matter debate with MOND-compatible explanation

The Bullet Cluster has so far been considered evidence of the existence of dark matter. An international team of researchers has now analyzed new data and current images from the James Webb Space Telescope (JWST). According ...

Astronomy Jun 18, 2026

Long gamma-ray bursts may trace collapsing stars rather than neutron-star mergers

Long-duration gamma-ray bursts are some of the most energetic events in the universe, releasing more energy in just a few seconds than the sun emits in 10 billion years. Los Alamos National Laboratory scientists, having discovered ...

Astronomy Jun 17, 2026

Supernova origins explored through primordial black holes

Dr. Shing-Chi Leung, assistant professor of physics at SUNY Polytechnic Institute, has published the article "Primordial Black Hole Triggered Type Ia Supernovae II: Comparison with Supernova Remnants and Galactic Chemical ...

General Physics Jun 17, 2026

Quantum sensor overcomes major obstacle in search for dark matter and gravitational waves

A prototype quantum sensor developed by researchers at Imperial has demonstrated for the first time that a key principle behind next-generation quantum detectors can work under realistic conditions.

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