UNIVERSE
SPACE EXPLORATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Views from outer space telescopes are clearer than those from Earth-based telescopes.
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Earth-based telescopes have a greater range of light detection.
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Human error is reduced by the use of the Hubble telescope.
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The Hubble telescope is used to examine events that cannot be explained.
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Detailed explanation-1: -Since 1990, the Hubble Space Telescope has been orbiting Earth and sending back images of space for astronomers to view and interpret. What benefit is there to a telescope that orbits Earth? Earthbased telescopes have a greater range of light detection.
Detailed explanation-2: -Images taken by Hubble have helped scientists estimate the age and size of the universe. Scientists believe the universe is almost 14 billion years old. Hubble has helped scientists understand how planets and galaxies form. An image called “Hubble Ultra Deep Field” shows the farthest galaxies ever seen.
Detailed explanation-3: -Hubble images are 5 to 20 times sharper than those obtained from the ground, in effect bringing the universe that much “closer” (Figure 3.2). Image sharpness and the extremely dark sky help Hubble to see objects 10 times fainter than those that can be observed with even the largest ground-based telescopes.
Detailed explanation-4: -Hubble also provided conclusive evidence for the existence of Supermassive Black Holes in the centres of galaxies by observing the galaxy M87. 1995 | Hubble took the famous photo of the Eagle Nebula which was later named ‘pillars of creation’.
Detailed explanation-5: -Similarly, Hubble has two types of antennas to send and receive signals: high-gain antennas (HGAs) and low-gain antennas (LGAs). The LGAs are small, stationary, spiral cone antennas that can send and receive signals in every direction.
Detailed explanation-6: -Faint, distant glimpses of light from the universe’s most distant collections of stars. For more than 25 years, the Hubble Space Telescope has brought the wonder, beauty and mysteries of the universe to Earth, spinning pictures out of light that have transformed our understanding of the universe.