home.social

#extraterrestrial — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #extraterrestrial, aggregated by home.social.

  1. what are your favorite movies about aliens? especially lesser known ones.

    i've been going through this list:

    57 Best Alien Movies Of All Time Ranked looper.com/835223/best-alien-m

    (books, TV, and other media acceptable too)

    #Aliens #Extraterrestrial #NHI #Movies #Films #ScienceFiction

  2. what are your favorite movies about aliens? especially lesser known ones.

    i've been going through this list:

    57 Best Alien Movies Of All Time Ranked looper.com/835223/best-alien-m

    (books, TV, and other media acceptable too)

    #Aliens #Extraterrestrial #NHI #Movies #Films #ScienceFiction

  3. 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
    nature.com/articles/s41550-026

  4. 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
    nature.com/articles/s41550-026

  5. Harvard Scientist Avi Loeb Claims 3I/ATLAS May Be Alien Spacecraft Conducting Recon — Here's Why
    atlas.whatip.xyz/post.php?slug
    "Unveiling the Mysteries Beyond: Explore the Alien Origins of 3I/ATLAS at '3I/ATLAS Hub'!"
    #space #astronomy #alien #extraterrestrial #cosmicmystery

  6. Harvard Scientist Avi Loeb Claims 3I/ATLAS May Be Alien Spacecraft Conducting Recon — Here's Why
    atlas.whatip.xyz/post.php?slug
    "Unveiling the Mysteries Beyond: Explore the Alien Origins of 3I/ATLAS at '3I/ATLAS Hub'!"
    #space #astronomy #alien #extraterrestrial #cosmicmystery

  7. #30DayChartChallenge Día 29: Extraterrestrial! 👽✨ ¡Planetas con su incertidumbre a cuestas! #UncertaintiesWeek #Astronomy

    Volvemos al gráfico Radio vs Insolación (log-log, color=Temp) de exoplanetas (NASA Archive). Pero hoy añadimos una capa visual para la incertidumbre: el "halo" gris ⚪️ detrás de cada punto.

    El tamaño del halo es proporcional al log(error) reportado para la Insolación. ¡Halos grandes = más incertidumbre en la energía que recibe ese planeta!

    Es un recordatorio de que los datos astronómicos tienen errores y no todos los puntos son igual de "seguros". Interesante ver qué planetas en la zona habitable (verde) tienen más incertidumbre. (+ Venus/Tierra/Marte 💎).

    🛠 #rstats #ggplot2 #ggrepel | Data: NASA | Theme: #theme_week5_uncertainty
    📂 Código/Viz: t.ly/ygNLW

    #Day29 #Extraterrestrial #dataviz #DataVisualization #Exoplanets #HabitableZone #Astrobiology #UncertaintyViz #ErrorVisualization #NASA #ggplot2 #RStats #Science

  8. Día 29: Extraterrestrial! 👽✨ ¡Planetas con su incertidumbre a cuestas!

    Volvemos al gráfico Radio vs Insolación (log-log, color=Temp) de exoplanetas (NASA Archive). Pero hoy añadimos una capa visual para la incertidumbre: el "halo" gris ⚪️ detrás de cada punto.

    El tamaño del halo es proporcional al log(error) reportado para la Insolación. ¡Halos grandes = más incertidumbre en la energía que recibe ese planeta!

    Es un recordatorio de que los datos astronómicos tienen errores y no todos los puntos son igual de "seguros". Interesante ver qué planetas en la zona habitable (verde) tienen más incertidumbre. (+ Venus/Tierra/Marte 💎).

    🛠 | Data: NASA | Theme:
    📂 Código/Viz: t.ly/ygNLW

  9. Spacecraft Buzzes Mercury's North Pole And Beams Back Stunning Photos
    --
    phys.org/news/2025-01-spacecra <-- shared technical article
    --
    bbc.co.uk/programmes/m001yqp3 <-- shared BBC In Our Time podcast
    --
    [I have been following this for some time, but even more so since an excellent May ’24 podcast I listened to, link above…]

    @ESA @JAXA @InOurTime