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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 63 Preview – By the Numbers

    Nasa Mars2 years ago

    Flight 63 Expected flight date:  10/19/2023 Horizontal flight distance: 573.93 meters Expected flight time: 137 seconds Flight altitude: 12 meters Heading: SW Max flight speed: 6.3 m/s Goal of flight: Reposition of

    Flight 61 Preview – By the Numbers

    Nasa Mars2 years ago

    Flight 61 Expected flight date: 09/29/2023  Horizontal flight distance: N/A  Flight time: 129.69 seconds Max altitude: 24 meters Heading: N/A  Max flight speed: N/A  Goal of flight: Pop-up flight Airfield: Tau

    Flight 60 Preview – By the Numbers

    Nasa Mars2 years ago

    Flight 60 Expected flight date: 09/25/2023  Horizontal flight distance: 326.493 meters Expected flight time: 124.18 seconds Max altitude: 16 meters Heading: NW Max flight speed: 8 m/s Goal of flight: reposition of the helicopter &

    Flight 59 Preview – By the Numbers

    Nasa Mars2 years ago

    Flight 59 Expected flight date: 09/16/2023  Horizontal flight distance: N/A (pop-up flight) Expected flight time: 142.94 seconds Max altitude: 20 meters Heading: N/A Max flight speed: N/A Goal of flight: Pop-up flight Airfield: Sigma

    Flight 53 Preview – By the Numbers

    Nasa Mars2 years ago

    Flight 53 Expected Flight date: 07/22/2023 Horizontal flight distance: 666.34 feet (203.1 meters) Flight time: 136.82 seconds Flight altitude: 32 feet (10 meters) Heading: North Max Flight speed: 5.6 mph (2.5 meters per

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