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

    space.com3 hours 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.com5 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

    Astrobiology5 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?

    Astrobiology5 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

    Astrobiology6 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

    Astrobiology6 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.

    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

    Flight 68 Preview – By the Numbers

    Nasa Mars1 year ago

    Flight 68 Expected flight date: 12/09/2023 Horizontal flight distance: 828 meters Expected flight time: 146.56 seconds Flight altitude: 16 meters Heading: Northeast (out & back flight) Max flight speed: 10 m/s Goal of

    Flight 67 Preview – By the Numbers

    Nasa Mars1 year ago

    Flight 67 Expected flight date: 12/02/2023 Horizontal flight distance: 392.84 meters Expected flight time: 133.57 seconds Flight altitude: 12 meters Heading: Northwest Max flight speed: 5.3 m/s Goal of flight: Reposition

    The Long Wait

    Nasa Mars1 year ago

    There was a long delay between Flight 52 and Flight 53,  and a deviation from the published Flight 53 plan. I will address both in this blog post. First, the Flight

    Flight 66 Preview – By the Numbers

    Nasa Mars1 year ago

    Flight 66 Expected flight date: 11/02/2023 Horizontal flight distance: 0.5 meters Expected flight time: 23.38 seconds Flight altitude: 3 meters Heading: South Max flight speed: 1 m/s Goal of flight: Reposition

    Flight 64 Preview – By the Numbers

    Nasa Mars1 year ago

    Flight 64 Expected flight date: 10/27/2023  Horizontal flight distance: 408.435 meters Expected flight time: 124.5 seconds Flight altitude: 12 meters Heading: North Max flight speed: 5.3 m/s Goal of flight:

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