Reference Terms
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Red supergiant star
Red supergiants are supergiant stars of spectral type K-M and a luminosity class of I.
Note: The above text is excerpted from the Wikipedia article "Red supergiant star", which has been released under the GNU Free Documentation License.
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Space & Time News
May 7, 2024
May 6, 2024 Billions of years ago, Venus may have harbored as much water as Earth. Today, almost all of it has disappeared. A new study may help to explain ...
May 1, 2024 A research team using the ChemCam instrument onboard NASA's Curiosity rover discovered higher-than-usual amounts of manganese in lakebed rocks within Gale Crater on Mars, which indicates that the sediments were formed in a river, delta, or near the ...
Apr. 30, 2024 Researchers have successfully used NASA's James Webb Space Telescope to map the weather on the hot gas-giant exoplanet WASP-43 ...
Apr. 16, 2024 Astronomers have identified the most massive stellar black hole yet discovered in the Milky Way galaxy. This black hole was spotted in data from the European Space Agency's Gaia mission because it imposes an odd 'wobbling' motion on the companion ...
Latest Headlines
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May 6, 2024 Astronomers observed the elusive starlight surrounding some of the earliest quasars in the universe. The findings may shed light on how the earliest supermassive black holes became so massive despite ...
May 6, 2024 Bright, starry spiral arms surround an active galactic center in a new NASA Hubble Space Telescope image of the galaxy NGC 4951. Located in the Virgo constellation, NGC 4951 is located roughly 50 ...
May 6, 2024 New discoveries about Jupiter could lead to a better understanding of Earth's own space environment and influence a long-running scientific debate about the solar system's largest ...
Apr. 29, 2024 Computer simulations by astronomers support the idea that dark matter -- matter that no one has yet directly detected but which many physicists think must be there to explain several aspects of the ...
May 2, 2024 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 ...
May 1, 2024 Researchers have discovered a potential 'cosmic glitch' in the universe's gravity, explaining its strange behavior on a cosmic ...
Apr. 30, 2024 NASA's James Webb Space Telescope has captured the sharpest infrared images to date of a zoomed-in portion of one of the most distinctive objects in our skies, the Horsehead Nebula. These ...
Apr. 29, 2024 Astronomers have confirmed that differences in binary stars' composition can originate from chemical variations in the cloud of stellar material from which they formed. The results help explain why ...
Apr. 29, 2024 Samples reveal evidence of changes experienced by the surface of asteroid Ryugu, some probably due to micrometeoroid ...
Apr. 26, 2024 Researchers co-led a study that will improve the detection of gravitational waves--ripples in space and ...