An abundance of distant gas-rich galaxies found by FAST
Astronomers, using the Five-hundred-meter Aperture Spherical radio Telescope (FAST) in China's Guizhou Province, have found an abundance of gas-rich galaxies in the distant universe.
Astronomers, using the Five-hundred-meter Aperture Spherical radio Telescope (FAST) in China's Guizhou Province, have found an abundance of gas-rich galaxies in the distant universe.
Astronomy
1 hour ago
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UC Riverside astrophysicist Stephen Kane had to double-check his calculations. He wasn't sure the planet he was studying could be as extreme as it seemed.
Planetary Sciences
18 hours ago
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116
Using the Dark Energy Camera (DECam), Argentinian astronomers have investigated the environment of a galactic globular cluster known as NGC 6355. The study, presented in a paper published May 2 on the pre-print server arXiv, ...
Researchers using NASA/ESA/CSA James Webb Space Telescope may have detected an atmosphere surrounding 55 Cancri e, a rocky exoplanet 41 light-years from Earth. This is the best evidence to date for a rocky planet atmosphere ...
Astronomy
May 8, 2024
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153
Using the Indian Astronomical Observatory (IAO) and ESA's Gaia satellite, astronomers have explored a galactic globular cluster known as NGC 2419. Results of the study, published April 29 on the preprint server arXiv, shed ...
Distant galaxies, interacting galaxies, whose shape has been forged by the mutual gravitational influence, but also galaxies forming groups and clusters, kept together by gravity—they are the protagonists of three new images ...
Astronomy
May 7, 2024
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Astronomers report the discovery of a new pulsar using the Spektr-RG space observatory. The newfound object, designated SRGA J144459.2−604207 (or SRGA J1444 for short), turns out to be a bursting accreting millisecond X-ray ...
Using the James Webb Space Telescope (JWST), an international team of astronomers has explored young stellar objects (YSOs) in an open cluster known as NGC 346. The study, published April 24 on the preprint server arXiv, ...
Recent reports of NASA's James Webb Space Telescope finding signs of life on a distant planet understandably sparked excitement. A new study challenges this finding, but also outlines how the telescope might verify the presence ...
Astrobiology
May 2, 2024
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76
European astronomers have performed photometric and spectroscopic observations of a distant giant exoplanet known as TOI-837 b. As a result, they found that TOI-837 b is a young Saturn-sized planet containing a massive core, ...
A light-year or light year (symbol: ly) is a unit of length, equal to just under 1013 kilometres. As defined by the International Astronomical Union (IAU), a light-year is the distance that light travels in a vacuum in one Julian year.
The light-year is often used to measure distances to stars and other distances on a galactic scale, especially in non-specialist and popular science publications. The preferred unit in astrometry is the parsec, because it can be more easily derived from, and compared with, observational data. The parsec is defined as the distance at which an object will appear to move one arcsecond of parallax when the observer moves one astronomical unit perpendicular to the line of sight to the observer, and is equal to approximately 3.26 light-years.
The related unit of the light-month, roughly one-twelfth of a light-year, is also used occasionally for approximate measures.
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