The arXiv (pronounced "archive", as if the "X" were the Greek letter Chi, χ) is an archive for electronic preprints of scientific papers in the fields of mathematics, physics, astronomy, computer science, quantitative biology, statistics, and quantitative finance which can be accessed online. In many fields of mathematics and physics, almost all scientific papers are self-archived on the arXiv. On 3 October 2008, arXiv.org passed the half-million article milestone. The preprint archive turned 20 years old on 14 August 2011. By 2012 the submission rate has grown to more than 6000 per month.
Using the Canada-France-Hawaii Telescope (CFHT), astronomers have observed a chemically peculiar star known as HD 213258. In result, they found that HD 213258 is a rapidly oscillating, strongly magnetic Ap star. The finding ...
By analyzing the data from ESA's Gaia satellite, astronomers from the Shanghai Astronomical Observatory (SHAO) in China have detected 101 new open clusters in the Milky Way galaxy. The discovery was presented in a paper published ...
Although dark matter is a central part of the standard cosmological model, it's not without its issues. There continue to be nagging mysteries about the stuff, not the least of which is the fact that scientists have found ...
Astronomy
Dec 30, 2022
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Using NASA's Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers has detected a new "hot Jupiter" exoplanet. The newfound alien world, estimated to be nearly three times as massive as Jupiter, ...
Astronomers from the Aryabhatta Research Institute of observational sciencES (ARIES) and from the Physical Research Laboratory in India report the detection of 57 variable stars in the field of the open cluster NGC 381. The ...
Studying the large-scale structure of our galaxy isn't easy. We don't have a clear view of the Milky Way's shape and features like we do of other galaxies, largely because we live within it. But we do have some advantages. ...
Astronomy
Dec 27, 2022
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Using the Neutron Star Interior Composition Explorer (NICER) onboard the International Space Station (ISS), an international team of astronomers has inspected the recent outburst of an accreting millisecond X-ray pulsar known ...
The Robert C. Byrd Green Bank Telescope (GBT), part of the Green Bank Observatory in West Virginia, is the world's premiere single-dish radio telescope. Between its 100-meter dish (328-foot), unblocked aperture, and excellent ...
Astrobiology
Dec 22, 2022
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By analyzing the data from NASA's Swift spacecraft and from the Neutron Star Interior Composition Explorer (NICER) onboard the International Space Station, astronomers have investigated an active optical transient known as ...
Since it launched on December 25th, 2021, the James Webb Space Telescope (JWST) has taken the sharpest and most detailed images of the universe, surpassing even its predecessor, the venerable Hubble Space Telescope. But what ...
Astronomy
Dec 21, 2022
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