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

    space.com39 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.

    Nasa Mars1 year ago

    On Saturday, Jan. 20, communications were reestablished between Ingenuity and NASA’s Perseverance rover. The Ingenuity team has determined the helicopter is power-positive and is sitting vertically on the surface. Next

    Nasa Mars1 year ago

    On Jan. 18, NASA’s Ingenuity Mars Helicopter executed its 72nd flight at the Red Planet. The flight was designed as a quick pop-up vertical flight to check out the helicopter’s

    Flight 72 Preview – By the Numbers

    Nasa Mars1 year ago

    Flight 72 Expected flight date: 01/18/2024 Horizontal flight distance: 0 meters Expected flight time: 32.08 seconds Flight altitude: 12 meters Heading: NA Max flight speed: 0 m/s Goal of flight: Pop-up Flight – Localization Airfield:

    Flight 71 Preview – By the Numbers

    Nasa Mars1 year ago

    Flight 71 Expected flight date: 01/06/2024 Horizontal flight distance: 358.3 meters Expected flight time: 124.92 seconds Flight altitude: 12 meters Heading: West Max flight speed: 7 m/s Goal of flight: Reposition Helicopter Airfield: Same

    Flight 70 Preview – By the Numbers

    Nasa Mars1 year ago

    Flight 70 Expected flight date: 12/22/2023 Horizontal flight distance: 258.735 meters Expected flight time: 129.37 seconds Flight altitude: 12 meters Heading: West Max flight speed: 3 m/s Goal of flight: Reposition Helicopter Airfield: Same

    The Right Stuff

    Nasa Mars1 year ago

    Trailblazer Long before Ingenuity’s historic first flight on Mars, engineers at NASA’s Jet Propulsion Laboratory in Southern California and their collaborators at AeroVironment Inc. were already moving the boundaries of

    Flight 69 Preview – By the Numbers

    Nasa Mars1 year ago

    Flight 69 Expected flight date: 12/19/2023 Horizontal flight distance: 702.37 meters Expected flight time: 131.10 seconds Flight altitude: 16 meters Heading: East-northeast Max flight speed: 10 m/s Goal of flight: Flight Test Airfield: Same

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