Astronomy

  1. terrascope
    Space

    A proposed space telescope would use Earth’s atmosphere as a lens

    One astronomer has a bold solution to the high cost of building big telescopes.

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  2. supernova Vela
    Physics

    Exploding stars scattered traces of iron over Antarctic snow

    Researchers melted half a ton of snow to find just 10 atoms of a radioactive variety of iron.

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  3. Astronomy

    Giant, active galaxies from the early universe may have finally been found

    Overlooked galaxies from when the universe was younger than 2 billion years old could be the ancestors of other ancient and modern monster galaxies.

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  4. sunlike stars illustration
    Astronomy

    Stars may keep spinning fast, long into old age

    NASA’s TESS telescope has spotted an old star that spins too fast for theory to explain, suggesting that stars may have a magnetic midlife crisis.

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  5. Milky Way
    Astronomy

    A 3-D map of stars reveals the Milky Way’s warped shape

    Our galaxy flaunts its curves in a chart of thousands of stars called Cepheids.

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  6. hot Jupiter exoplanet
    Astronomy

    TESS has found the first-ever ‘ultrahot Neptune’

    NASA’s TESS telescope has spotted a world that could be a bridge between other types of exoplanets: hot Jupiters and scorched Earths.

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  7. Big Red Ball
    Astronomy

    In a first, physicists re-created the sun’s spiraling solar wind in a lab

    Some of the sun’s fundamental physics have been re-created with plasma inside a vacuum chamber

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  8. Chandra images
    Astronomy

    NASA’s Chandra X-ray telescope celebrates 20 years in space

    The U.S. space agency has released new images for the Chandra X-ray Observatory’s 20th birthday.

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  9. supernova
    Cosmology

    Scientists still can’t agree on the universe’s expansion rate

    A mismatch in measurements of how fast the universe is expanding might not be real, a study hints.

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  10. young star disks
    Astronomy

    Gaps in gas disks around stars may not always mark newborn planets

    New research has prompted a rethink of the theory that gaps in planet-forming disks around young stars mark spaces where planets are being created.

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  11. Lisa with moon rocks
    Planetary Science

    How NASA has kept Apollo moon rocks safe from contamination for 50 years

    NASA wouldn’t let our reporter touch the Apollo moon rocks. Here’s why that’s a good thing.

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  12. Astronomy

    Moons that escape their planets could become ‘ploonets’

    If giant planets in other star systems lose their moons, the freed objects could become “ploonets,” and current telescopes may be able to find them.

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