हब्बल अंतरिक्ष दूरबीन
thumb|250px|habbal aantariksh doorabin habbal aantariksh doorabin (ech.es.ti.) ko prithvi ki kaksha mean 25 aprail, 1990 ko prakshepit kiya gaya tha. ech.es.ti. ek vedhashala hai, jisaki parikalpana 1940 ke dashak mean ki gayi thi, rooparekha aur nirman 1970 aur 1980 ke dashakoan mean hua aur ant mean 1990 ke dashak mean karyarat hua. yah ek naye prakar ka abhiyan tha, kyoanki isake lie ek lambe, 15 varsh ka jivan kal tay kiya gaya tha.
- habbal doorabin aj 21 varshoan se bhi adhik samay se karyarat hai.
- is doorabin ne khagoliki itihas mean anek aise anusandhan kie haian, jinhoanne kahian-kahian khagoliki ke pun: lekhan ki zaroorat par bal diya hai.
- brahmand ki umr ka pata isi doorabin se kiya ja saka tatha 1994 mean brihaspati aur puchchhal tare 'shoomekar levi-9' ke bich hue takarav ka chitran bhi kiya ja saka.
- habbal doorabin pratham doorabin hai, jisaki paanch bar aantariksh mean marammat ki ja chuki hai.
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