Reference Terms
from Wikipedia, the free encyclopedia
Subatomic particle
A subatomic particle is a particle smaller than an atom: it may be elementary or composite.
Note: The above text is excerpted from the Wikipedia article "Subatomic particle", which has been released under the GNU Free Documentation License.
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Space & Time News
October 29, 2024
Oct. 17, 2024 — Astronomers observed ancient quasars that appear to be surprisingly alone in the early universe. The findings challenge physicists' understanding of how such luminous objects could have formed so early on in the universe, without a significant ...
Oct. 16, 2024 — An international team has successfully demonstrated that 70% of all known meteorite falls originate from just three young asteroid families. These families were produced by three recent collisions that occurred in the main asteroid belt 5.8, 7.5, ...
Oct. 14, 2024 — NASA's Europa Clipper has embarked on its long voyage to Jupiter, where it will investigate Europa, a moon with an enormous subsurface ocean that may have conditions to support life. The largest spacecraft NASA ever built for a mission headed to ...
Oct. 11, 2024 — Astronomers have used the NASA/ESA James Webb Space Telescope (JWST) to observe the 'inside-out' growth of a galaxy in the early universe, only 700 million years after the Big ...
Latest Headlines
updated 12:56 pm ET
Oct. 28, 2024 — Researchers have pored over more than two decades' worth of data from NASA's Chandra X-Ray Observatory to show there's new knotty science to discover around black ...
Oct. 25, 2024 — A new study has revealed that methane gas may be trapped within the icy surface of Saturn's moon Titan, forming a distinct crust up to six miles thick, which warms the underlying ice shell and may ...
Oct. 24, 2024 — A historical supernova documented by Chinese and Japanese astronomers in 1181 has been lost for centuries, until very recently. Yet, the newly found remnant shows some stunning characteristics that ...
Oct. 24, 2024 — A distant interstellar cloud was found to contain an abundance of pyrene, a type of large carbon-containing molecules known as polycyclic aromatic hydrocarbons (PAHs). This suggest pyrene may have ...
Oct. 23, 2024 — U.S. Naval Research Laboratory (NRL) imaging instruments on three sun-orbiting observatories have captured sequences of comet C/2023 A3, known as Tsuchinshan-ATLAS, as it passed between the Earth and ...
Oct. 23, 2024 — A sequence of events during the evolution of certain rocky planets orbiting M-dwarfs, the most common stars in the universe, creates an atmosphere ...
Oct. 23, 2024 — Researchers are designing new ways to make spectrometers that are ultra-small but still very powerful, to be used for anything from detecting disease to observing stars in distant ...
Oct. 23, 2024 — A surprising discovery about the black hole V404 Cygnus is expanding our understanding of black holes, the objects they can host, and the way they ...
Oct. 22, 2024 — Researchers are taking experimental navigation technology to the skies, pioneering a backup system to keep an airplane on course when it cannot rely on global positioning system ...
Oct. 21, 2024 — Observing sites like the Amazon basin from space has underscored the capability of satellites to better detect signs of drought, according to a new study. The researchers combined Global Positioning ...