What is Hubble ?

Named after the trailblazing astronomer Edwin P. Hubble (1889-1953), the Hubble Space Telescope (HST) is a large, space-based observatory which has revolutionized astronomy by providing unprecedented deep and clear views of the Universe, ranging from our own solar system to extremely remote fledgling galaxies forming not long after the Big Bang
13.7 billion years ago.
Launched in 1990 and greatly extended in its scientific powers through new instrumentation installed during four servicing missions with the Space Shuttle, the Hubble, in its eighteen years of operations, has validated Lyman Spitzer Jr.'s (1914-1997) original concept of a diversely instrumented observatory orbiting far above the distorting effects of the Earth's atmosphere and returning data of unique scientific value.

Hubble's coverage of light of different colors (its "spectral range") extends from the ultraviolet, through the visible (to which our eyes are sensitive), and into the near-infrared. Hubble's primary mirror is 2.4 meters (94.5 inches) in diameter. Hubble is not large by ground-based standards but it performs heroically in space. Hubble orbits Earth every 96 minutes, 575 kilometers (360 miles) above the Earth's surface.

NASA Goddard Space Flight Center in Greenbelt, MD performs the daily orbital operations, servicing mission development, and overall management of the Hubble Program. The Space Telescope Science Institute (STScI) in Baltimore, MD develops and executes Hubble's scientific program and is managed by the Association of Universities for Research in Astronomy (AURA) under contract to NASA.


Fun Facts about Hubble
• Hubble whirls around Earth at 5 miles per second. If a car could travel that fast, a road trip from Los Angeles to New York City would take only 10 minutes.
• Hubble completes one full orbit every 97 minutes.
• Hubble is nearly the size of a large school bus, but it can fit inside the cargo bay of a space shuttle.
• In an average orbit, Hubble uses about the same amount of energy as 28 100-watt light bulbs.
• Hubble travels more than 150 million miles ( 241 million km) per year.


- An Excerpt