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NASA's Fermi mission sees no gamma rays from nearby supernova

A nearby supernova in 2023 offered astrophysicists an excellent opportunity to test ideas about how these types of explosions boost particles, called cosmic rays, to near light-speed. But surprisingly, NASA's Fermi Gamma-ray ...

Citizen science project classifying gamma-ray bursts

When faraway stars explode, they send out flashes of energy called gamma-ray bursts that are bright enough that telescopes back on Earth can detect them. Studying these pulses, which can also come from mergers of some exotic ...

Astronomers inspect open cluster Berkeley 50

Using the Lowell Discovery Telescope (LDT), astronomers from the Lowell Observatory in Flagstaff, Arizona, have observed a young Galactic open cluster known as Berkeley 50. Results of the observational campaign, presented ...

Most massive stellar black hole in our galaxy found

Astronomers have identified the most massive stellar black hole yet discovered in the Milky Way galaxy. This black hole was spotted in data from the European Space Agency's Gaia mission because it imposes an odd 'wobbling' ...

Neutron stars could be heating up from dark matter annihilation

One of the big mysteries about dark matter particles is whether they interact with each other. We still don't know the exact nature of what dark matter is. Some models argue that dark matter only interacts gravitationally, ...

New tidal stellar stream discovered with Gaia

By analyzing the data from ESA's Gaia satellite, Chinese astronomers have detected a new tidal stellar stream in the northern hemisphere, which has a low metallicity and a relatively high energy. The finding was reported ...

Juice aces Callisto flyby test

Seven years from now, in April 2031, ESA's Juice mission will fly past Jupiter's moon Callisto, offering scientists a tantalizing glimpse at the mysterious, cratered alien world.

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Astronomy
Researchers find baby stars discharge plume-like 'sneezes' of magnetic flux during formation
Astronomy
Beautiful nebula, violent history: Clash of stars solves stellar mystery
Astronomy
HD 21997 is a high-frequency Delta Scuti pulsator, observations find
Astronomy
Eclipses aren't just visual spectacles, they are at the heart of scientific efforts to understand distant planets
Astronomy
Astronomers discover the longest-period classical Cepheid in our galaxy
Astronomy
Researchers enable detection of remarkable gravitational-wave signal
Astronomy
Astronomers detect unprecedented behavior from nearby magnetar
Astronomy
A wobbling magnetized star challenges the origin of repeating fast radio bursts
Astronomy
Inexplicable cloud of magnetized plasma found in Hydra galaxy cluster
Astronomy
Hubble peers at pair of closely interacting galaxies
Astronomy
The sun was born when a dense gas cloud collapsed 4.6 billion years ago
Astronomy
Charting the night sky with exascale computers
Astronomy
The universe's accelerated expansion might be slowing down
Astronomy
Eclipse viewing safety: Keeping your & your kid's vision safe
Astronomy
Huge star explosion to appear in sky in once-in-a-lifetime event
Astronomy
DESI first-year data delivers unprecedented measurements of expanding universe
Astronomy
Astronomers detect potential 'glory effect' on a hellish distant world for the first time
Astronomy
Researchers say neutron stars are key to understanding elusive dark matter
Astronomy
New observations provide insights into whether the birth of brown dwarfs takes a similar course to that of stars
Astronomy
NASA's NEOWISE extends legacy with decade of near-Earth object data

Other news

Analytical Chemistry
Researchers advance pigment chemistry with moon-inspired reddish magentas
Environment
Animals deserve to be included in global carbon cycle models as well, say researchers
Nanophysics
Quantum electronics: Charge travels like light in bilayer graphene
Analytical Chemistry
Chemists invent a more efficient way to extract lithium from mining sites, oil fields, used batteries
Molecular & Computational biology
'One ring to rule them all': How actin filaments are assembled by formins
Ecology
New tagging method provides bioadhesive interface for marine sensors on diverse, soft and fragile species
Quantum Physics
Crucial connection for 'quantum internet' made for the first time
Cell & Microbiology
Spiraling insights: Scientists observe mechanical waves in bacterial communities
Astrobiology
In search for alien life, purple may be the new green
Nanophysics
'Nano stitches' enable lighter and tougher composite materials
Optics & Photonics
Attosecond imaging made possible by short and powerful laser pulses
Plants & Animals
Climate-change-driven cold snaps threaten marine life
Plants & Animals
Twisted pollen tubes induce infertility in plants with multiple sets of chromosomes
Analytical Chemistry
Sustainable synthesis method reveals N-hydroxy modifications for pharmaceuticals
Environment
Study quantifies ecological restoration effectiveness on greenhouse gas emissions
Plasma Physics
Creating an island paradise in a fusion reactor
General Physics
Physicists explain, and eliminate, unknown force dragging against water droplets on superhydrophobic surfaces
Nanomaterials
A single atom layer of gold—researchers create goldene
Bio & Medicine
Scientists develop nanosilver-impregnated silk suture against surgical site infection
Biochemistry
Researchers create new AI pipeline for identifying molecular interactions

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.