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Comet
A comet is a small body in the solar system that orbits the Sun and (at least occasionally) exhibits a coma (or atmosphere) and/or a tail - both primarily from the effects of solar radiation upon the comet's nucleus, which itself is a minor body composed of rock, dust, and ices.
Note: The above text is excerpted from the Wikipedia article "Comet", which has been released under the GNU Free Documentation License.
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Space & Time News
November 8, 2024
Nov. 4, 2024 — Astronomers have discovered a supermassive black hole at the center of a galaxy just 1.5 billion years after the Big Bang that is consuming matter at a phenomenal rate -- over 40 times the theoretical limit. While short lived, this black hole's ...
Oct. 30, 2024 — New research in our Milky Way has revealed a neutron star that rotates around its axis at an extremely high speed. It spins 716 times per second, making it one of the fastest-spinning objects ever ...
Oct. 30, 2024 — It would take far longer than the lifespan of our universe for a typing monkey to randomly produce Shakespeare, a new study ...
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 ...
Latest Headlines
updated 12:56 pm ET
Nov. 7, 2024 — Researchers have developed an innovative technique to search for black hole light echoes. Their novel method, which will make it easier for the mass and the spin of black holes to be measured, ...
Nov. 7, 2024 — Readily available thermoelectric generators operating under modest temperature differences can power CO2 conversion, according to a proof-of-concept ...
Nov. 6, 2024 — Gamma radiation can convert methane into a wide variety of products at room temperature, including hydrocarbons, oxygen-containing molecules, and amino acids, reports a research team. This type of ...
Nov. 6, 2024 — Tiny grains from asteroid Ryugu are revealing clues to the magnetic forces that shaped the far reaches of the solar system over 4.6 billion years ago. The findings suggest the distal solar system ...
Nov. 6, 2024 — Researchers have uncovered where FRBs are more likely to occur in the universe -- massive star-forming galaxies rather than low - mass ...
Nov. 4, 2024 — A new study details how climate change transforms coastal wetlands in North Carolina from forest to marshland or even open water, and how satellite imagery may help better direct conservation efforts ...
Nov. 4, 2024 — Stem cells grown in microgravity aboard the International Space Station (ISS) have unique qualities that could one day help accelerate new biotherapies and heal complex disease, researchers say. The ...
Nov. 4, 2024 — The temperature of elementary particles has been observed in the radioactive glow following the collision of two neutron stars and the birth of a black hole. This has, for the first time, made it ...
Oct. 30, 2024 — More accurate orbit predictions for satellites and space debris as well as a better understanding of the water masses present on Earth: Researchers at achieved both using satellite laser ...
Nov. 1, 2024 — Teams of astronomers used the combined power of NASA's Hubble and James Webb space telescopes to revisit the legendary Vega ...