Today In Science History

On April 24th, 1990, the Hubble Space Telescope was launched by the the space shuttle Discovery!

Fast Facts!

  • The HST is named after astronomer Edwin Hubble.
  • It is the only telescope designed to be maintained by astronauts! When elements of the telescope need to be repaired or replaced, astronauts are sent to do it!
  • The HST is 43.5 feet tall and weighs 24,500 lbs.
  • It is powered by sunlight.
  • In 1995, the HST was able to take an image of over 3,000 galaxies are too far away for other telescopes to see.
  • After measuring a star known as a Cepheid Variable, scientists were able to estimate the age of the universe to 13.7 billion years.