10 Facts You Didn't Know About the Hubble Space Telescope


1. It was named after a well-known astronomer.

The Hubble Space Telescope is named after Edwin Hubble, an American astronomer whose discoveries aided scientists in expanding their vision of the universe to include galaxies other than our own. In 1923, while working at the Mount Wilson Observatory, Hubble discovered that Andromeda, which was previously thought to be a nebula, was actually a distinct galaxy hundreds of thousands of light years away from our Milky Way.

2. The Hubble Space Telescope travelled a long distance.

Hubble had made almost 115,000 trips around the earth as of March 2011. This is around 5 billion kilometres (nearly 3.1 billion miles), or the length of a journey to Neptune.

3. Hubble Takes black and white image

The photos returned by Hubble are in black and white. Color photos are created by merging two or more black and white exposures and processing them through coloured filters.

4. Hubble Usage 2800 watts

The HST consumes little power in comparison to its size and purpose, consuming approximately 2800 watts, which is only 1300 watts more than a hair dryer on high heat, which consumes 1500 watts. Solar panels measuring 2.6 x 7.1 m power the telescope.

5. Hubble travels at a speed of 17,500 miles/27,300 kilometers per hour

Hubble is a fast telescope; it travels around the planet at 28 000 km/h, which is 11 times faster than the maximum altitude speed of a Eurofighter Typhoon (2495 km/h).

6. Five space shuttle missions have updated the telescope

Five space shuttle trips have updated the telescope during the last 25 years. While the mirror needed to be fixed, Hubble was also meant to be updated with new technology, like as cameras.

7. Hubble is 43.5 feet (13.2 m) long

Hubble is 13.2 meters (43.5 ft.) long and its maximum diameter is 4.2 meters (14 ft.) It is about the size of a large tractor-trailer truck or length of a large school bus.

8. Hubble has no thrusters

Hubble has no thrusters. To change angles, it uses Newton’s third law by spinning its wheels in the opposite direction. It turns at about the speed of a minute hand on a clock, taking 15 minutes to turn 90 degrees.

9. Hubble generates about 10 terabytes/per year

Hubble generates about 10 terabytes of new data per year. The total archive is currently over 290 TB in size.

10. Hubble has captured photographs of the very young universe.

Hubble has peered back into the very distant past, to locations more than 13.4 billion light-years from Earth.


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