Search results for cosmic

Astronomy 4 hours ago

Astronomy 'Olympics' is being hosted in Africa for the first time: Four big talking points

Cutting-edge telescopes, gravitational waves, black holes and our solar system's central star, the sun, are just a few of the topics that will be on the table in Cape Town, South Africa, for an event that's a scientific version ...

Space Exploration Aug 5, 2024

NASA trains machine learning algorithm for Mars sample analysis

When a robotic rover lands on another world, scientists have a limited amount of time to collect data from the troves of explorable material, because of short mission durations and the length of time to complete complex experiments.

General Physics Aug 5, 2024

Preliminary results of antiproton experiment may provide clues in search for dark matter

Last week, at the biennial ICHEP conference, the AMBER experiment presented results from its first data-taking period. Taken in 2023, these results show preliminary plots of the antiproton's production cross section—the ...

General Physics Aug 5, 2024

In neutrinos, quantum entanglement leads to shared flavor

Neutrinos are the "ghost particles" in the Standard Model of Particle Physics. This is because they interact weakly with ordinary matter. An interesting property of neutrinos is that they can change their identities or "flavors" ...

Earth Sciences Aug 2, 2024

Investigating the link between N₂O ionization and ozone depletion

Man-made emissions of nitrous oxide (N₂O) are rapidly increasing globally and are predicted to pose a growing threat to Earth's ozone layer. In the 1970s, it was discovered that N₂O in the upper atmosphere can trigger ...

General Physics Aug 2, 2024

Cosmic microwave background experiments could probe connection between cosmic inflation, particle physics

Various large-scale astrophysical research projects are set to take place over the next decade, several of which are so-called cosmic microwave background (CMB) experiments. These are large-scale scientific efforts aimed ...

Earth Sciences Aug 1, 2024

Retreating Andean rocks signal the world's glaciers are melting far faster than predicted, report scientists

Rocks recently exposed to the sky after being covered with prehistoric ice show that tropical glaciers have shrunk to their smallest size in more than 11,700 years, revealing the tropics have already warmed past limits last ...

General Physics Aug 1, 2024

A higher-dimensional model can help explain cosmic acceleration without dark energy

Dark energy remains among the greatest puzzles in our understanding of the cosmos. In the standard model of cosmology called the Lambda-CDM, it is accounted for by adding a cosmological constant term in Einstein's field equation ...

General Physics Jul 31, 2024

Nuclear physicists question origin of radioactive beryllium in the solar system

Scientists have determined that a rare element found in some of the oldest solids in the solar system, such as meteorites, and previously thought to have been forged in supernova explosions, actually predate such cosmic events, ...

Planetary Sciences Jul 31, 2024

Astrophysicists build model to explain to rapid planet formation

Our solar system is our immediate cosmic neighborhood. We know it well: the sun at the center; then the rocky planets Mercury, Venus, Earth, and Mars; and then the asteroid belt; followed by the gas giants Jupiter and Saturn; ...

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