Phys.org news

Phys.org / Blazar Ton 599's complex variability investigated by long-term observations

Using the Whole Earth Blazar Telescope (WEBT), an international team of astronomers have performed long-term photometric observations of a luminous blazar known as Ton 599. Results of the observations, published in the Astronomy ...

19 hours ago in Astronomy & Space
Phys.org / Mass spec innovation uses 'bin' sorting to detect overlooked molecules

Weight says a lot. In the kitchen, it could mean cooking with too little or too much of an ingredient. For scientists, a molecule's weight can help determine its makeup. This, in turn, can shed light on whether a potential ...

12 hours ago in Chemistry
Phys.org / Marine regression emerges as key driver of Late Paleozoic Ice Age in high-resolution model

Earth system box models are essential tools for reconstructing long-term climatic and environmental evolution and uncovering Earth system mechanisms. To overcome the spatiotemporal resolution limitations of current deep-time ...

12 hours ago in Earth
Phys.org / AMOC collapse simulations reveal what could happen to the ocean's carbon

The Atlantic Meridional Overturning Circulation (AMOC) is the system of currents responsible for shuttling warm water northward and colder, denser water to the south. This "conveyor belt" process helps redistribute heat, ...

14 hours ago in Earth
Phys.org / Webb finds early-universe analog's unexpected talent for making dust

Using NASA's James Webb Space Telescope, astronomers have spotted two rare kinds of dust in the dwarf galaxy Sextans A, one of the most chemically primitive galaxies near the Milky Way.

12 hours ago in Astronomy & Space
Phys.org / Cracking sleep's evolutionary code: Neuron protection traced back to jellyfish and sea anemones

A new study from Bar-Ilan University shows that one of sleep's core functions originated hundreds of millions of years ago in jellyfish and sea anemones, among the earliest creatures with nervous systems. By tracing this ...

12 hours ago in Biology
Phys.org / Shelled amoeba crawls like an octopus, shifting tactics on the go

An international team of researchers led by Hokkaido University has characterized the unique mechanics that enable Arcella, a shelled, single-celled amoeba, to move skillfully across different surfaces.

12 hours ago in Biology
Phys.org / Webb telescope sheds light on ancient 'monster stars' that may reveal the birth of black holes

Using data from NASA's James Webb Space Telescope, astronomers from the Center for Astrophysics | Harvard & Smithsonian (CfA) have revealed the universe's most mysterious distant objects, known as little red dots, may actually ...

14 hours ago in Astronomy & Space
Phys.org / How well-meaning allies increase stress for marginalized people

Someone in the office makes a racially insensitive comment, and a white co-worker asks a Black colleague to help correct the offender.

12 hours ago in Other Sciences
Phys.org / New framework unifies space and time in quantum systems

Quantum mechanics and relativity are the two pillars of modern physics. However, for over a century, their treatment of space and time has remained fundamentally disconnected. Relativity unifies space and time into a single ...

18 hours ago in Physics
Phys.org / 'Platypus' objects in the early universe look like stars but behave like galaxies

Scientists at the University of Missouri have identified a small group of unusual objects in the early universe. Using NASA's James Webb Space Telescope (JWST), Haojing Yan and his team at Mizzou's College of Arts and Science ...

14 hours ago in Astronomy & Space
Phys.org / Programmable microparticles morph and self-propel under electrical fields

Researchers at CU Boulder have created tiny, microorganism-inspired particles that can change their shape and self-propel, much like living things, in response to electrical fields.

13 hours ago in Nanotechnology