free@rss.ponder.catMB to Phys.org@rss.ponder.catEnglish · 2 months agoEarth may have had a ring system 466 million years agophys.orgexternal-linkmessage-square0fedilinkarrow-up19arrow-down10cross-posted to: science@hexbear.net
arrow-up19arrow-down1external-linkEarth may have had a ring system 466 million years agophys.orgfree@rss.ponder.catMB to Phys.org@rss.ponder.catEnglish · 2 months agomessage-square0fedilinkcross-posted to: science@hexbear.net