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Killer cosmic rays from nearby supernovae could be the culprit behind at least one mass extinction event, researchers said, and finding certain radioactive isotopes in Earth's rock record could confirm this scenario.
Aug 19th, 2020
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Citizen scientists and NOIRLab facilities key to discovery of almost 100 nearby cool brown dwarfs.
Aug 18th, 2020
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One way to determine whether there is life on another planet is to look for biosignatures in the light that is scattered off its atmosphere. Scientists have developed an original model that interprets the results of that analysis.
Aug 18th, 2020
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For the first time, researchers have found a way to describe conditions deep in the convection zone of 'white dwarf' stars, which are home to some of the densest collections of matter in the Universe.
Aug 17th, 2020
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Scientists have detected a mysterious gamma-ray heartbeat coming from a cosmic gas cloud. The inconspicuous cloud in the constellation Aquila is beating with the rhythm of a neighbouring precessing black hole, indicating a connection between the two objects.
Aug 17th, 2020
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The end of the universe as we know it will not come with a bang. Most stars will very, very slowly fizzle as their temperatures fade to zero.
Aug 12th, 2020
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The question of how small, dwarf galaxies have sustained the formation of new stars over the course of the Universe has long confounded the world?s astronomers. Researchers have found that dormant small galaxies can slowly accumulate gas over many billions of years. When this gas suddenly collapses under its own weight, new stars are able to arise.
Aug 12th, 2020
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Subatomic particles are no-shows in experiments, increasing doubts about their existence.
Aug 11th, 2020
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NASA's TESS has completed its primary mission, imaging about 75% of the starry sky during a two-year-long survey. TESS has found 66 new planets, nearly 2,100 candidates, and much more.
Aug 11th, 2020
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Astronomers have applied artificial intelligence to ultra-wide field-of-view images of the distant Universe and have achieved a very high accuracy for finding and classifying spiral galaxies in those images.
Aug 11th, 2020
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An international team of researchers suggests that the dwarf planet Ceres - the largest known object in our asteroid belt - is an ocean world that might have been geologically active in its recent past.
Aug 10th, 2020
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Nuclear physicists have made a key discovery related to the analysis of 'presolar grains' found in some meteorites. This discovery has shed light on the nature of stellar explosions and the origin of chemical elements. It has also provided a new method for astronomical research.
Aug 10th, 2020
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By reconstructing on a small scale the physical processes that take place within ice giant planets, such as Uranus and Neptune, a new method of computer simulation allows to shed light on their present structure and past evolution.
Aug 10th, 2020
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Helium is the second most abundant element in the universe after hydrogen. But scientists aren't sure just how much there actually is in the Sun's atmosphere. NASA's HERSCHEL sounding rocket has taken the first global measurements of helium in the extended solar atmosphere - a key piece of information for understanding our space environment.
Aug 7th, 2020
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Astronomers took a census of stellar eggs in the constellation Taurus and revealed their evolution state. This census helps researchers understand how and when a stellar embryo transforms to a baby star deep inside a gaseous egg.
Aug 7th, 2020
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Taking advantage of a total lunar eclipse, astronomers using the Hubble Space Telescope have detected Earth's own brand of sunscreen - ozone - in our atmosphere. This method simulates how astronomers and astrobiology researchers will search for evidence of life beyond Earth by observing potential 'biosignatures' on exoplanets.
Aug 6th, 2020
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Calcium-rich supernovae, a unique type of exploding stars, produce up to half of the calcium in the Universe.
Aug 5th, 2020
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Scientists have developed a new prediction of the shape of the bubble surrounding our solar system using a model developed with data from NASA missions.
Aug 5th, 2020
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