http___www.tportal.hr_scitech_znanost_174324_Novopronadeni-planet-savrsen-za-zivot.html_1.xml
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It looks like you're using an Ad Blocker. Please white-list or disable AboveTopSecret.com in your ad-blocking tool. Thank you. Some features of ATS will be disabled while you continue to use an ad-blocker. Sorry, I don't understand what you mean by that. Originally posted by LLTWF Geologists and mineralogists would say they are, or maybe, the broken remains of clays or phyllosilicate (or something else I forgot). However, no one could present a micrograph comaprable to the "worm" in ALH84001. A potentially habitable alien planet — one that scientists say is the best candidate yet to harbor water, and possibly even life, on its surface — has been found around a nearby star. The planet is located in the habitable zone of its host star, which is a narrow circumstellar region where temperatures are neither too hot nor too cold for liquid water to exist on the planet's surface. "It's the Holy Grail of exoplanet research to find a planet around a star orbiting at the right distance so it's not too close where it would lose all its water and boil away, and not too far where it would all freeze," Steven Vogt, an astronomer at the University of California, Santa Cruz, told SPACE.com. "It's right smack in the habitable zone — there's no question or discussion about it. It's not on the edge, it's right in there." Vogt is one of the authors of the new study, which was led by Guillem Anglada-Escudé and Paul Butler of the Carnegie Institution for Science, a private, nonprofit research organization based in Washington, D.C. "This planet is the new best candidate to support liquid water and, perhaps, life as we know it," Anglada-Escudé said in a statement. An alien super-Earth The researchers estimate that the planet, called GJ 667Cc, is at least 4.5 times as massive as Earth, which makes it a so-called super-Earth. It takes roughly 28 days to make one orbital lap around its parent star, which is located a mere 22 light-years away from Earth, in the constellation Scorpius (the Scorpion). "This is basically our next-door neighbor," Vogt said. "It's very nearby. There are only about 100 stars closer to us than this one." originally posted by: dragonbreath With the billions and billions of planets out there I think it would be naive to think there is not life out there somewhere. Humans have painted and carved images of what appears to be alien beings for thousands of years. originally posted by: ArMaP Sorry, I don't understand what you mean by that. Do you mean that no one could present another geological/mineralogical feature like the one in the meteorite? originally posted by: Wolfenz See the Similarity's ??
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Potencijalno naseljiv nepoznati planet, za koji znanstvenici kažu kako je najbolji kandidat da ima vodu a možda čak i život na svojoj površini, otkriven je u orbiti oko jedne obližnje zvijezde, objavio je u četvrtak američki portal SPACE.com. Planet se nalazi u nastanjivoj zoni svoje zvijezde, u relativno uskom pojasu u kojem temperature nisu ni previsoke ni preniske da bi tekuća voda mogla postojati na površini planeta. 'Sveti Gral istraživanja egzoplaneta je pronaći planet koji kruži oko zvijezde na pravoj udaljenosti tako da nije preblizu, gdje će zbog visoke temperature ispariti sva voda, niti previše daleko gdje će se sve zamrznuti', rekao je Steven Vogt , astronom na Sveučilištu u Kaliforniji, Santa Cruz, za SPACE.com. "On je upravo u središtu nastanjive zone. Nema dvojbe ili rasprave o tome, on nije na rubu, već je baš u središtu", rekao je Vogt. Vogt je jedan od autora nove studije, koju su predvodiili Guillem Anglada-Escude i Paul Butler iz Instituta Carnegie za znanost, privatne, neprofitne istraživačke organizacije sa sjedištem u Washingtonu. "Taj je planet novi najbolji kandidat za postojanje tekuće vode i, možda, života kakav poznajemo", istakao je Anglada-Escude u priopćenju. Znanstvenici procjenjuju da je planet, nazvan GJ 667Cc, barem 4,5 puta masivniji od Zemlje, što ga čini tzv. "super-Zemljom". Treba mu oko 28 dana da opiše jedan orbitalni krug oko svoje zvijezde, koja se nalazi samo 22 svjetlosne godine daleko od Zemlje, u zviježđu Škorpiona. "To je u osnovi naš susjed. To je u vrlo neposrednoj blizini. Postoji samo 100-tinjak zvijezda koje su nam bliže od ove", rekao je Vogt. Zanimljivo je da zvijezda GJ 667C, pripada trostrukom zvjezdanom sustavu. GJ 667C je patuljak M-klase koji ima oko trećinu mase sunca, a može se vidjeti teleskopom sa Zemlje, rekao je Vogt. Otkriće planeta u orbiti zvijezde GJ 667C predstavlja iznenađenje za astronome, jer cijeli zvjezdani sustav ima različit kemijski sastav od našeg Sunca. Sustav ima puno manju prisutnost teških elemenata (težih od vodika i helija), kao što su željezo, ugljik i silicij. Slučajno bi otkriće moglo značiti da potencijalno naseljivi izvanzemaljski svjetovi mogu postojati u većoj raznolikosti okruženja nego što se ranije mislilo da je moguće, rekli su istraživači. Detaljni rezultati studije bit će objavljeni u časopisu Astrophysical Journal Letters. - Sviđa vam se članak? Preporučite ga prijateljima putem ovih servisa: Pošaljite mailom