What is The Hubble Space Telescope?
Hubble is a space telescope launched into low Earth orbit in 1990. It is one of NASA's Great Observatories, providing crucial data and breathtaking images to further our understanding of the universe.
What was the launch date of The Hubble Space Telescope?
Hubble was launched on April 24, 1990, aboard the Space Shuttle Discovery during the STS-31 mission. Its deployment marked a significant milestone in astronomical observation.
Why is Hubble positioned in space?
Hubble is in space to avoid the distortion and absorption of light caused by Earth's atmosphere. This allows it to capture much clearer images and observe a broader range of electromagnetic spectra.
How large is The Hubble Space Telescope?
Hubble is about the size of a large school bus, measuring 13.2 meters (43.5 feet) long and 4.2 meters (14 feet) in diameter. It weighs approximately 11,000 kg (24,500 pounds).
What kind of discoveries has Hubble made?
Hubble has made numerous discoveries, including determining the age of the universe, confirming dark energy's existence, finding exoplanets, and providing evidence for supermassive black holes at galaxy centers.
Can Hubble see planets in other solar systems?
Yes, Hubble can detect exoplanets using methods like transit photometry and direct imaging for some. It has contributed significantly to characterizing exoplanet atmospheres and studying their environments.
Where does Hubble get its power?
Hubble gets its power from two large solar arrays that convert sunlight into electricity. This energy charges six nickel-hydrogen batteries, enabling the telescope to operate even when in Earth's shadow.
How does Hubble send images back to Earth?
Hubble sends images back to Earth via high-gain antennas that transmit data to a network of ground stations. The data is then processed and distributed to scientists and the public.
What is the primary mirror size of Hubble?
The primary mirror of Hubble has a diameter of 2.4 meters (7.9 feet). This highly polished mirror is essential for gathering light from distant celestial objects and focusing it onto its scientific instruments.
What is the future of The Hubble Space Telescope?
The James Webb Space Telescope (JWST) is considered Hubble's scientific successor, focusing on infrared astronomy. While JWST is operational, Hubble continues its mission, observing primarily in visible and ultraviolet light.
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