Reference Terms
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Phase (matter)
A phase is a set of states of a macroscopic physical system that have relatively uniform chemical composition and physical properties (i.e. density, crystal structure, index of refraction, and so forth).
Note: The above text is excerpted from the Wikipedia article "Phase (matter)", which has been released under the GNU Free Documentation License.
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Matter & Energy News
May 14, 2025
May 8, 2025 — In space, energetic neutrinos are usually paired with energetic gamma rays. Galaxy NGC 1068, however, emits strong neutrinos and weak gamma rays, which presents a puzzle for scientists to solve. A new paper posits that helium nuclei collide with ...
May 8, 2025 — A new study of the 28 most populous U.S. cities finds that all are sinking to one degree or another. The cities include not just those on the coasts, where relative sea level is a concern, but many in the interior. Furthermore, using newly granular ...
May 7, 2025 — Physicists captured the first images of individual atoms freely interacting in space. The pictures reveal correlations among the 'free-range' particles that until now were predicted but never directly ...
Apr. 28, 2025 — A technique to cool the planet, in which particles are added to the atmosphere to reflect sunlight, would not require developing special aircraft but could be achieved using existing large planes, according to a new modelling ...
Latest Headlines
updated 12:56 pm ET
May 14, 2025 — Scientists inspired by the octopus's nervous system have developed a robot that can decide how to move or grip objects by sensing its ...
May 13, 2025 — Researchers have detailed the geological ingredients required to find clean sources of natural hydrogen beneath our feet. The work details the requirements for natural hydrogen, produced by the Earth ...
May 14, 2025 — Listen to the first notes of an old, beloved song. Can you name that tune? If you can, congratulations -- it's a triumph of your associative memory, in which one piece of information (the first few ...
May 14, 2025 — For millions of people around the world with essential tremor, everyday activities from eating and drinking to dressing and doing basic tasks can become impossible. This common neurological movement ...
May 14, 2025 — Australian researchers have flagged some promising new approaches to treat severe burns that could save lives and dramatically improve patient ...
May 14, 2025 — Researchers have developed a digital laboratory (dLab) system that fully automates the material synthesis and structural, physical property evaluation of thin-film samples. With dLab, the team can ...
May 14, 2025 — New device can give peace of mind and reduce anxiety for breastfeeding moms. It uses bioimpedance, which is currently used to measure body fat, and streams clinical-grade data to a smartphone or ...
May 14, 2025 — An international team of researchers has discovered saarvienin A, a new type of glycopeptide antibiotic. Their findings introduce a compound with strong activity against highly resistant bacterial ...
May 14, 2025 — In many neurodegenerative diseases, proteins misfold and clump together in brain tissue. Scientists developed a new therapy made of peptides and a ...
May 14, 2025 — When biting into a chili pepper, you expect a fiery sensation on your tongue. This spiciness is detected because of capsaicinoid compounds. But for some peppers, despite high levels of capsaicinoids, ...