Spannend, die Bausteine des Lebens scheinen in vielen Meteoriten vorzukommen, wie jetzt eine Untersuchung an Proben von #Bennu, #Ryugu und zwei auf der Erde gefundenen Meteoriten nachgewiesen wurde.

https://borncity.eu/senioren/2026/03/21/asteroid-ryugu-enthaelt-bausteine-des-lebens/

「遙かなる時空の中で 龍宮の神子」記憶を失った源 頼久と紡がれる恋の行方。「心のかけら」を巡る「時空の浮橋」イベントレポート
https://www.4gamer.net/games/941/G094188/20260323015/

#4gamer #遙かなる時空の中で_龍宮の神子 #りゅうぐうのみこ #りゅうみこ #haruka #ryugu #ファンタジー #歴史物 #恋愛 #女性向け #益山武明 #戸谷菊之介 #三浦勝之 #瀬戸麻沙美 #木島隆一

Organic #molecules delivered from #extraterrestrial materials may have played a key role in supplying building blocks for #life on #Earth.

Now scientists report all five canonical #nucleobases—purines (#adenine and #guanine) and pyrimidines (#cytosine, #thymine and #uracil)—in samples returned from the C-type #asteroid (162173) #Ryugu.

Samples from Ryugu, #Bennu and #Orgueil, which have a similar mineralogy and elemental composition, show purine-to-pyrimidine ratios negatively correlating with #ammonia.

These observations indicate that the nucleobases in these samples may have formed via a shared pathway depending on the physicochemical environment of the respective parent bodies.

The detection of diverse nucleobases in asteroid and meteorite materials demonstrates their widespread presence throughout the Solar System and reinforces the hypothesis that carbonaceous asteroids contributed to the #prebiotic chemical inventory of early Earth.

#astronomy #astrobiology
https://www.nature.com/articles/s41550-026-02791-z

"n a study published in Nature Astronomy today, a team of Japanese scientists has confirmed all five nucleobases are present in this pristine asteroid [Ryugu] material.

This means these ingredients for life may have been widespread throughout the Solar System in its early years."

https://theconversation.com/all-5-fundamental-units-of-lifes-genetic-code-were-just-discovered-in-an-asteroid-sample-278099

#Asteroids #Ryugu #Samples #Molecules #Nucleobases