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<blockquote style="position: relative; padding-left: 55px;"><section><a href="https://mastodon.bot/users/apod/statuses/115127819935253969">Astronomy Picture of the Day (apod@mastodon.bot)'s status on Monday, 01-Sep-2025 20:11:58 JST</a><a href="https://mastodon.bot/@apod" title="apod@mastodon.bot"><img src="https://gnusocial.jp/avatar/226387-48-20231226025330.webp" width="48" height="48" alt="Astronomy Picture of the Day" style="position: absolute; left: 0; top: 0;">Astronomy Picture of the Day</a></section><article><p>APOD from 2025-09-01</p><p>Callisto: Dirty Battered Iceball</p><p><a href="https://mastodon.bot/tags/Jupiter" rel="tag">#Jupiter</a>'s <a href="https://mastodon.bot/tags/moon" rel="tag">#moon</a> Callisto, larger than <a href="https://mastodon.bot/tags/Mercury" rel="tag">#Mercury</a> and visited by Voyager 2 in 1979, is heavily cratered with a bright icy surface. Its interior may hide a liquid water layer, possibly harboring life. Upcoming ESA and NASA missions aim to study Jupiter's moons further.</p><p>HD image at <a href="https://apod.nasa.gov/apod/ap250901.html#space" rel="nofollow noreferrer">https://apod.nasa.gov/apod/ap250901.html#space</a> <a href="https://mastodon.bot/tags/astronomy" rel="tag">#astronomy</a> <a href="https://mastodon.bot/tags/planet" rel="tag">#planet</a> <a href="https://mastodon.bot/tags/earth" rel="tag">#earth</a></p></article><footer><a rel="bookmark" href="https://gnusocial.jp/conversation/5572112#notice-10939791">In conversation</a><time datetime="2025-09-01T20:11:58+09:00" title="Monday, 01-Sep-2025 20:11:58 JST">about 10 months ago</time> <span>from <span><a href="https://mastodon.bot/@apod/115127819935253969" rel="external" title="Sent from mastodon.bot via ActivityPub">mastodon.bot</a></span></span><a href="https://mastodon.bot/@apod/115127819935253969">permalink</a><h4>Attachments</h4><ol><li><label><a rel="external" href="https://gnusocial.jp/attachment/5148307">Callisto: Dirty Battered Iceball</a></label><br><a href="https://files.mastodon.bot/media_attachments/files/115/127/780/767/989/226/original/ac404b04458aa89d.jpg" rel="external">https://files.mastodon.bot/media_attachments/files/115/127/780/767/989/226/original/ac404b04458aa89d.jpg</a></li><li><article><header><div>Domain not in remote thumbnail source whitelist: apod.nasa.gov</div><h5><a href="https://apod.nasa.gov/apod/ap250901.html#space">APOD: 2025 September 1 – Callisto: Dirty Battered Iceball</a></h5><div></div></header><div>A different astronomy and space science
related image is featured each day, along with a brief explanation.</div><footer></footer></article></li></ol></footer></blockquote>

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Astronomy Picture of the Day (apod@mastodon.bot)'s status on Monday, 01-Sep-2025 20:11:58 JST Astronomy Picture of the Day
APOD from 2025-09-01
Callisto: Dirty Battered Iceball
#Jupiter's #moon Callisto, larger than #Mercury and visited by Voyager 2 in 1979, is heavily cratered with a bright icy surface. Its interior may hide a liquid water layer, possibly harboring life. Upcoming ESA and NASA missions aim to study Jupiter's moons further.
HD image at https://apod.nasa.gov/apod/ap250901.html#space #astronomy #planet #earth
In conversationabout 10 months ago from mastodon.botpermalink
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1. Callisto: Dirty Battered Iceball
  https://files.mastodon.bot/media_attachments/files/115/127/780/767/989/226/original/ac404b04458aa89d.jpg
2. Domain not in remote thumbnail source whitelist: apod.nasa.gov
  APOD: 2025 September 1 – Callisto: Dirty Battered Iceball
  A different astronomy and space science related image is featured each day, along with a brief explanation.

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