Reference Terms
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Volcanic rock
Volcanic rock is an igneous rock of volcanic origin.
Note: The above text is excerpted from the Wikipedia article "Volcanic rock", which has been released under the GNU Free Documentation License.
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Science News
May 13, 2025
May 13, 2025 — Astronomers have developed a groundbreaking computer simulation to explore, in unprecedented detail, magnetism and turbulence in the interstellar medium (ISM) -- the vast ocean of gas and charged ...
May 12, 2025 — Researchers analyzed 788 obsidian artifacts from Tenochtitlan, revealing that the Mexica (Aztec) Empire sourced this important material from at least eight different locations, including regions outside their political control. While 90% of ...
May 9, 2025 — New research from a team of cognitive scientists and evolutionary biologists finds that chimpanzees drum rhythmically, using regular spacing between drum hits. Their results show that eastern and western chimpanzees -- two distinct subspecies -- ...
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 ...
Latest Headlines
updated 12:56 pm ET
May 13, 2025 — Experts are urging people, especially those with existing heart or vascular conditions, to seek medical advice before attempting to lose weight using ...
May 13, 2025 — As kids spend more time on screens, a new national survey conducted by Ipsos on behalf of The Kids Mental Health Foundation, founded by Nationwide ...
May 12, 2025 — Stifling heat and sticky air often make summertime in the city uncomfortable. Due to the heat island effect, urban areas are significantly warmer than nearby rural areas, even at night. This, ...
May 12, 2025 — Researchers confirm and explore the role of estrogen-related receptors in regulating energy production in muscle cells during exercise. The findings ...
May 12, 2025 — ChatGPT responses matched or outperformed epileptologists' responses related to the regions where epileptogenic zones are commonly located. Yet ...
May 12, 2025 — A team of researchers investigated a sequence of coastal dunes of different ages (from 0-700,000 years old) in Cooloola National Park near Rainbow ...
May 9, 2025 — A significant advancement in molecular engineering has produced a large, hollow spherical shell nanostructure through the self-assembly of peptides ...
May 13, 2025 — Biologists and chemists have a new programming language to uncover previously unknown environmental pollutants at breakneck speed -- without requiring them to ...
May 13, 2025 — Engineers built E-BAR, a mobile robot designed to physically support the elderly and prevent them from falling as they move around their homes. E-BAR acts as a set of robotic handlebars that follows ...
May 13, 2025 — Researchers identified two brain networks involved in word retrieval -- the cognitive process of accessing words we need to speak. A semantic network processes meaning in middle/inferior frontal ...