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GNU social JPは日本のGNU socialサーバーです。
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An artist's illustration of our solar system and what lies beyond, including the interstellar medium, then other galaxies, and finally the closest exoplanets to Earth. Credit: Charles Carter/Keck Institute for Space Studies

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https://files.mastodon.social/media_attachments/files/111/319/774/378/407/619/original/3578673db4a01c05.jpg

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  1. Embed this notice
    Corey S Powell (coreyspowell@mastodon.social)'s status on Tuesday, 25-Jun-2024 06:01:56 JST Corey S Powell Corey S Powell
    in reply to

    For a dose of perspective: Even at the peak speed of the Parker Solar Probe (~180 km/sec), it would take more than 7,000 years to reach Alpha Centauri, the nearest star system.

    Interstellar distances are HUGE.
    #space #science #travel

    In conversation about 5 months ago from mastodon.social permalink
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GNU social JP is a social network, courtesy of GNU social JP管理人. It runs on GNU social, version 2.0.2-dev, available under the GNU Affero General Public License.

Creative Commons Attribution 3.0 All GNU social JP content and data are available under the Creative Commons Attribution 3.0 license.