Sökning: "extraterrestrial"

Visar resultat 1 - 5 av 22 uppsatser innehållade ordet extraterrestrial.

  1. 1. Starshades: Geoengineering Solutions and Technosignatures in Direct Imaging Phase Curves

    Kandidat-uppsats, Lunds universitet/Astrofysik; Lunds universitet/Fysiska institutionen

    Författare :Claudia Skoglund; [2023]
    Nyckelord :Starshades; extraterrestrial intelligence; stellar evolution; technosignatures; phase curves; direct imaging; habitable zone.; Physics and Astronomy;

    Sammanfattning : The stellar luminosity increases as a star evolves which inevitably yields a higher temperature on planets in orbit around the star. It is reasonable to assume that intelligent civilizations would tackle this issue through installing artificial structures that can alter the radiation received by the planet. LÄS MER

  3. 2. Antarctic Subglacial Lakes as Environmental Analogues for Possible Hidden Biospheres on the Moons Europa and Enceladus

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Jonas Fahlman; [2023]
    Nyckelord :astrobiology; icy moons; subglacial lakes; ice dynamics; thermal regimes; extremophiles; anthropogenic contamination; astrobiologi; ismånar; subglaciala sjöar; is-dynamik; termiska regimer; extremofiler; antropologisk kontaminering;

    Sammanfattning : The evolving science of astrobiology for the search for life beyond Earth has put focus on the possibility of subsurface bodies of liquid water beneath the surface of icy moons within our Solar System. Specifically, the Jovian moon of Europa and the Saturnian moon of Enceladus show telling characteristics of endogenous heating through their complex tidal resonances with their parent planets – suggesting the presence of oceans of liquid water and therefore a potential for astrobiology. LÄS MER

  4. 3. Simulations of the Tenuous Upper Atmospheres of Exoplanets

    Master-uppsats, Lunds universitet/Astrofysik; Lunds universitet/Fysiska institutionen

    Författare :Lucian Spitzner; [2023]
    Nyckelord :astronomy; astrophyics; exoplanets; transmission spectroscopy; magnetic fields; atmospheres; ions; Physics and Astronomy;

    Sammanfattning : Over the last decade, the interest in research on extraterrestrial planets has expanded dramatically. With the number of confirmed exoplanets having increased tenfold over the last ten years, we now know that many different types of exoplanets exist. LÄS MER

  5. 4. 'Oumuamua : An analysis of the the debate regarding the first interstellar visitor

    Kandidat-uppsats, Uppsala universitet/Teoretisk astrofysik

    Författare :Erik Westergren; [2022]
    Nyckelord : Oumuamua; asteroid; comet; Avi; Loeb; extraterrestrial; Pan-STARRS; interstellar; alien; vessel; Oumuamua; asteroid; komet; Avi; Loeb; utomjordiskt; PAN-STARRS; interstellär; farkost;

    Sammanfattning : In the year of 2017 in October a strange object with a hyperbolic trajectory was observed in our solar system. There were several hypotheses that scientists used to try to explain what kind of an object it was, but no one could, according to the scientific community as a whole, perpetuate any of these explanations as accepted consensus. LÄS MER

  7. 5. AI-paradoxen

    Kandidat-uppsats, Uppsala universitet/Filosofiska institutionen

    Författare :Jonas Ytterström; [2022]
    Nyckelord :the AI ​​paradox; artificial intelligence; existential risks; paperclip apocalypse; existential catastrophe; global catastrophe; natural risks; anthropogenic risks; superintelligence; nuclear war; pandemics; biological weapons; climate threat; nanotechnology; intelligence explosion; space colonization; the great filter; the fermi paradox; strong AI; weak AI; control problem; general artificial intelligence; AGI; decision theory; the AI argument; doomsday argument; extraterrestrial life; extraterrestrial civilization; bracewell-von neumann probe; safeguard humanity; the future of humanity; cosmic catastrophe; AI; paradox; AI-paradoxen; artificiell intelligens; existentiella risker; gemapokalyps; existentiella katastrofer; globala katastrofer; naturliga risker; antropogena risker; superintelligens; kärnvapenkrig; pandemier; biologiska vapen; klimathotet; nanoteknologi; intelligensexplosion; rymdkolonisering; fermiparadoxen; det stora filtret; den stora tystnaden; stark AI; svag AI; kontrollproblemet; generell artificiell intelligens; AGI; beslutsteori; the AI argument; domedagsargumentet; utomjordiskt liv; utomjordisk civilisation; bracewell-von neumann sond; skydda mänskligheten; mänsklighetens framtid; kosmiska katastrofer; AI; paradox;

    Sammanfattning : Derek Parfit är kanske en av vår tids mest kända moralfilosofer. Parfit inleder sin första bok Reasons and Persons med att ställa frågan: vad har vi mest skäl att göra? Hans fråga berör vad som egentligen har betydelse, en fråga som han fortsätter att beröra i sin andra bok On What Matters. LÄS MER