All Eye

on April 25, 1990, the Hubble Space Telescope was placed into orbit from Space Shuttle Discovery. Named after American astronomer Dr. Edwin Hubble, this space-based optical telescope orbits Earth at 28,000 kph (17,500 mph). Even at this speed and distance, the HST can still lock onto a target with accuracy measured in thousandths of an arcsecond – an angular measure of an object that is equivalent to 1/3600 of a degree!

Operating above the distortion of Earth’s atmosphere, the Hubble takes extremely sharp images. It transmits so much data back to Earth each week they would fill a bookshelf over 1000 m (3600 ft) long. The Hubble has found 3000 galaxies, planets around stars, new stars forming from collapsing clouds of gas and dust, investigated black holes, photographed cosmic impacts, peered into galaxies billions of light years away, and learned not only how galaxies come into being but also photographed their end of life.

All on solar power! From a space vehicle not quite as long as a school bus.

NASA photo of the Hubble Space Telescope over Earth

NASA photo of the Hubble Space Telescope over Earth


B Bondar / Real World Content Advantage


This entry was posted in On This Day and tagged , , , , , . Bookmark the permalink.

Comments are closed.