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    Can we dim the sun to fight climate change? Not without risking weather patterns, scientists suggest

    space.com38 minutes ago

    Can we dim the sun to fight climate change? Not without risking weather patterns, scientists suggest

    Some think it’s a no brainer: Scattering microscopic particles of sulfur into Earth’s atmosphere would reduce the amount of sunlight that reaches the ground, thereby cooling the planet. Indeed, this

    Giant star Betelgeuse has a 'Betelbuddy' — and it's very little indeed

    space.com2 hours ago

    Giant star Betelgeuse has a 'Betelbuddy' — and it's very little indeed

    Every superhero — or antihero — needs a sidekick. And it turns out that Beetlejuice Betelgeuse does indeed have one! The red supergiant star found in the constellation Orion has

    SOAPv4: A New Step Toward Modeling Stellar Signatures In Exoplanet Research

    Astrobiology2 hours ago

    SOAPv4: A New Step Toward Modeling Stellar Signatures In Exoplanet Research

    The time evolution of the stellar spectra occulted by the planet as a function of orbital phase, in the wavelength range 5882–5902 Å, which includes the sodium doublet. The positions

    Mysterious Gullies On Mars Appear To Have Been Dug, But By Whom Or What?

    Astrobiology2 hours ago

    Mysterious Gullies On Mars Appear To Have Been Dug, But By Whom Or What?

    Two examples of Martian dunes with linear dune gullies. North is up in both images. (a) Linear dune gullies on a dune field in Galle crater (HiRISE image ESP_077477_1280_MIRB). (b)

    TESS Discovers a Second System of Transiting Exocomets in the Extreme Debris Disk of RZ Psc

    Astrobiology3 hours ago

    TESS Discovers a Second System of Transiting Exocomets in the Extreme Debris Disk of RZ Psc

    Top: Simulated EVE observation of an exocomet transit of a K7V at 100 pc expected during a 20 d stare at ∼20 Myr Theia 43 or 45 associations. We scale

    Eruption Column Modelling Of Explosive Volcanism On Venus

    Astrobiology3 hours ago

    Eruption Column Modelling Of Explosive Volcanism On Venus

    Mass distribution inside the plume (left) and leaving the plume (right) for the different particle sizes along the plume vertical extent for the low (top) and high (bottom) plume cases.

    The Dark Tower

    Astronomy Now11 months ago

    Image: ESO/VPHAS+ Team. This eerie, dark silhouette is a cometary globule designated GN 16.43.7.01. Despite their name, cometary globules have nothing to do with comets, beyond having a similar shape

    Going south in Sculptor

    Astronomy Now11 months ago

    Magnificent NGC 253, the Silver Coin Galaxy in Sculptor. Image: Warren Keller/Telescope Live. Amateur astronomers just love the challenge of checking out those horizon-hugging southern constellations and seeking the deep-sky

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