Today is hubble's birthday !

            Hubble space telescope had launched on today's date in 1990.

            • On today's day, one of the powerful space telescope had launched by American space agency NASA.
            •Date of launch : 24th of April 1990.
            • The telescope given us great and important knowledge and information about universe. We got able to see the beauty of outer universe.

Revolution no.	35,441
Main telescope
Type	Ritchey–Chrétien reflector
Diameter	2.4 m (7.9 ft)[6]
Focal length	57.6 m (189 ft)[6]
Focal ratio	f/24
Collecting area	4.525 m2 (48.7 sq ft)[6]
Wavelengths	Near-infrared, visible light, ultraviolet
Instruments Near Infrared Camera and Multi-Object Spectrometer ACS Advanced Camera for Surveys WFC3 Wide Field Camera 3 COS Cosmic Origins Spectrograph STIS Space Telescope Imaging Spectrograph FGS Fine Guidance Sensor Source : Wikipedia Link : https://en.m.wikipedia.org/wiki/Hubble_Space_Telescope