{"id":231621,"date":"2018-04-19T07:01:35","date_gmt":"2018-04-19T05:01:35","guid":{"rendered":"http:\/\/www.travelreport.se\/?p=231621"},"modified":"2024-02-02T11:41:22","modified_gmt":"2024-02-02T11:41:22","slug":"planetjagare-uppskickad-av-nasa","status":"publish","type":"post","link":"https:\/\/www.travelreport.se\/da\/planetjagare-uppskickad-av-nasa\/","title":{"rendered":"Planetjagare uppskickad av Nasa"},"content":{"rendered":"

\"\"<\/a>
Foto: Space X<\/figcaption><\/figure>
\nNasa har skjutit upp en rymdraket med syftet att leta efter planeter som liknar jorden, d\u00e4r liv kan existera bortom v\u00e5rt solsystem.<\/strong><\/p>\n

Planen \u00e4r att uppt\u00e4cka 20 000 nya planeter.<\/p>\n

Satelliten Tess \u2013 Transiting Exoplanet Survey Satellite \u2013 som ska genomf\u00f6ra uppdraget sk\u00f6ts upp fr\u00e5n Florida i USA med en raket av typen Falcon 9 fr\u00e5n det privata rymdf\u00f6retaget Space X.<\/p>\n

Satelliten, som kostat motsvarande 2,8 miljarder kronor och \u00e4r stor som en tv\u00e4ttmaskin, ska s\u00f6ka efter ljusvariationer runt stj\u00e4rnor. Det kan vara ett tecken p\u00e5 att planeter cirkulerar runt dem.<\/p>\n

Fokus kommer att ligga p\u00e5 planeter inom ungef\u00e4r 10 till 100 ljus\u00e5r bort. Satelliten v\u00e4ntas uppt\u00e4cka 20 000 planeter bortom v\u00e5rt solsystem, bland dem \u00f6ver 50 i samma storlek som jorden och upp till 500 som \u00e4r mindre \u00e4n dubbelt s\u00e5 stora som jorden.<\/p>\n

St\u00f6rre omr\u00e5den<\/strong>
\nPlaneterna kommer sedan att studeras med teleskop f\u00f6r tecken p\u00e5 att de \u00e4r beboeliga: bergig terr\u00e4ng, en storlek lik jordens och ett avst\u00e5nd till planetens sol som m\u00f6jligg\u00f6r r\u00e4tt temperatur f\u00f6r att det ska kunna finnas vatten.
\n\u2013 Ber\u00e4ttelserna om de h\u00e4r planerna kommer att forts\u00e4tta l\u00e5ngt efter att de har uppt\u00e4ckts, s\u00e4ger Martin Still, forskare i Tess-projektet.<\/p>\n

Tess kommer att kunna s\u00f6ka av mycket st\u00f6rre omr\u00e5den \u00e4n Kepler-teleskopet, som s\u00e4ndes upp 2009. B\u00e5da anv\u00e4nder samma planetjagarsystem, att hitta skuggorna som uppst\u00e5r n\u00e4r planeten passerar framf\u00f6r sin sol.<\/p>\n

”Alla sorters planeter”<\/strong>
\nKepler har hittat \u00f6ver 2 300 planer utanf\u00f6r v\u00e5rt solsystem, men de flesta fanns f\u00f6r l\u00e5ngt bort eller syntes f\u00f6r otydligt f\u00f6r att kunna unders\u00f6kas vidare.
\n\u2013 En av m\u00e5nga fantastiska saker som Kepler visade oss var att det finns planeter \u00f6verallt och att alla sorters planeter finns d\u00e4r ute, s\u00e4ger Patricia Boyd, chef f\u00f6r Tess-programmet.<\/p>\n

Det f\u00f6rsta f\u00f6rs\u00f6ket att skicka iv\u00e4g Tess-raketen avbr\u00f6ts tv\u00e5 timmar f\u00f6re avf\u00e4rd i m\u00e5ndags. Efter en finputsning fr\u00e5n Space X-ingenj\u00f6rerna avklarades onsdagskv\u00e4llens uppskjutning utan problem. Mindre \u00e4n tio minuter efter att raketen lyft \u00e5terv\u00e4nde dess f\u00f6rsta steg till en obemannad plattform i Atlanten.<\/p>\n

Kilde: TT<\/p>","protected":false},"excerpt":{"rendered":"

Nasa har skjutit upp en rymdraket med syftet att leta efter planeter som liknar jorden, d\u00e4r liv kan existera bortom v\u00e5rt solsystem. Planen \u00e4r att uppt\u00e4cka 20 000 nya planeter. Satelliten Tess \u2013 Transiting Exoplanet Survey Satellite \u2013 som ska genomf\u00f6ra uppdraget sk\u00f6ts upp fr\u00e5n Florida i USA med en raket av typen Falcon 9 […]<\/p>\n","protected":false},"author":25,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[1225,332,1886,1887],"class_list":["post-231621","post","type-post","status-publish","format-standard","hentry","category-travel-report","tag-nasa","tag-rymden","tag-space-x","tag-tess"],"acf":[],"yoast_head":"\nPlanetjagare uppskickad av Nasa – Travel Report<\/title>\n<meta name=\"description\" content=\"Planetjagare uppskickad av Nasa \u2013 L\u00e4s senaste nyheterna fr\u00e5n resebranschen p\u00e5 Travel Report.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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