On April 24, 1990, shuttle mission STS-31 saw Discovery launch the telescope successfully into its planned orbit.From its original total cost estimate of about US$400 million, the telescope had by now cost over $2.5 billion to construct.. 
Antonie Philips Van Leeuwenìbìlù (ní Dutch bákannã bi Jávnie, yoàánú, tabi Theunis, ni Gẹ̀ẹ́sì, Antony tabi Anton) (ibi ní October 24, 1632 ó sì kú ní August 26, 17–23 - Ìsìnkú ní August 30) jẹ́ oníṣòwò àti onímọ̀ ọmọ orílẹ̀-èdè Netherlands.Ìtọ́kasí ìgbésíayé.. Ara 