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BLIZU VELIKOG PRASKA

SPEKTAKULARNA SNIMKA IZ SVEMIRA Teleskop Hubble snimio dosad najstariju galaksiju, udaljenu 13,4 milijarda svjetlosnih godina

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Objavljeno: 6. ožujka 2016. 21:09
In this cosmic snapshot, the spectacularly symmetrical wings of Hen 2-437 show up in a magnificent icy blue hue. Hen 2-437 is a planetary nebula, one of around 3000 such objects known to reside within the Milky Way. Located within the faint northern constellation of Vulpecula (The Fox), Hen 2-437 was first identified in 1946 by Rudolph Minkowski, who later also discovered the famous and equally beautiful M2-9 (otherwise known as the Twin Jet Nebula). Hen 2-437 was added to a catalogue of planetary nebula over two decades later by astronomer and NASA astronaut Karl Gordon Henize. Planetary nebulae such as Hen 2-437 form when an aging low-mass star â such as the Sun â reaches the final stages of life. The star swells to become a red giant, before casting off its gaseous outer layers into space. The star itself then slowly shrinks to form a white dwarf, while the expelled gas is slowly compressed and pushed outwards by stellar winds. As shown by its remarkably beautiful appearance, Hen 2-437 is a bipolar nebula â the material ejected by the dying star has streamed out into space to create the two icy blue lobes pictured here.
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In this cosmic snapshot, the spectacularly symmetrical wings of Hen 2-437 show up in a magnificent icy blue hue. Hen 2-437 is a planetary nebula, one of around 3000 such objects known to reside within the Milky Way. Located within the faint northern constellation of Vulpecula (The Fox), Hen 2-437 was first identified in 1946 by Rudolph Minkowski, who later also discovered the famous and equally beautiful M2-9 (otherwise known as the Twin Jet Nebula). Hen 2-437 was added to a catalogue of planetary nebula over two decades later by astronomer and NASA astronaut Karl Gordon Henize. Planetary nebulae such as Hen 2-437 form when an aging low-mass star â such as the Sun â reaches the final stages of life. The star swells to become a red giant, before casting off its gaseous outer layers into space. The star itself then slowly shrinks to form a white dwarf, while the expelled gas is slowly compressed and pushed outwards by stellar winds. As shown by its remarkably beautiful appearance, Hen 2-437 is a bipolar nebula â the material ejected by the dying star has streamed out into space to create the two icy blue lobes pictured here.
 NASA

NASA-in teleskop Hubble snimio je dosad najstariju galaksiju, udaljenu 13,4 milijarda svjetlosnih godina, objavila je američka svemirska agencija. Teleskop koji je lansiran u orbitu 1990. snimio je galaksiju nazvanu GN-z11 i ono što sada znanstvenici vide je kako je izgledala prije toliko milijarda godina odnosno 'svega' 400 milijuna godina nakon Velikog praska za koji se vjeruje da je stvorio svemir.

"Napravili smo veliki korak natrag u vrijeme, više nego što smo ikad vjerovali da možemo s Hubbleom", kaže voditelj projekta Pascal Oesch sa sveučilišta Yale za CNN. "Vidimo GN-z11 u vrijeme kad je svemir bio tek tri posto sadašnje starosti. Promatranje te galaksije nije novo, no ono što jest je procjena njezine udaljenosti od Zemlje. Prvi puta su znanstvenici za galaksiju toliko udal...

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#znanost #svemir #Hubbleov teleskop
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07. prosinac 2025 02:36