Hem
(RALPH ORLOWSKI / TT NYHETSBYRÅN)

Rymdsonden Rosetta har kraschlandat mot komet

I två år har rymdsonden Rosetta kretsat runt den isiga och stofttäckta kometen 67P Churyumov-Gerasimenko. Idag har satellitens resa tagit slut. En ”kontrollerad kraschlandning” har genomförts mot kometen.
Kraschen innebär en avslutning på en tolv år lång resa för att öka kunskapen om hur vårt solsystem bildades för omkring 4,6 miljarder år sedan, skriver TT.

bakgrund
 
Rosetta
Wikipedia (en)
Rosetta is a space probe built by the European Space Agency launched on 2 March 2004. Along with Philae, its lander module, Rosetta is performing a detailed study of comet 67P/Churyumov–Gerasimenko (67P). During its journey to the comet, the spacecraft flew by Mars and the asteroids 21 Lutetia and 2867 Šteins. On 6 August 2014, the spacecraft reached the comet and performed a series of manoeuvres to be captured in its orbit. On 12 November, the lander module performed the first successful landing on a comet, though its battery power ran out two days later. Communications with Philae were briefly restored in June and July 2015, but due to diminishing solar power, Rosetta's communications module with the lander was turned off on 27 July 2016. As of 2016, the mission continues to return data from the spacecraft in orbit. On 30 September 2016, the Rosetta spacecraft is expected to end its mission by landing on the comet near a pit called Deir el-Medina. The probe is named after the Rosetta Stone, a stele of Egyptian origin featuring a decree in three scripts. The lander is named after the Philae obelisk, which bears a bilingual Greek and Egyptian hieroglyphic inscription. A comparison of its hieroglyphs with those on the Rosetta Stone catalysed the deciphering of the Egyptian writing system. Similarly, it is hoped that these spacecraft will result in better understanding of comets and the early Solar System. In a more direct analogy to its namesake, the Rosetta spacecraft also carries a micro-etched nickel alloy Rosetta disc donated by the Long Now Foundation inscribed with 13,000 pages of text in 1,200 languages.
Omni är politiskt obundna och oberoende. Vi strävar efter att ge fler perspektiv på nyheterna. Har du frågor eller synpunkter kring vår rapportering? Kontakta redaktionen