SCIENCE
EARTH SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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telescopes
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spacecrafts
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satellites
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all of the above
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Detailed explanation-1: -Today, high-powered digital telescopes, many of them traveling through the cosmos like the Hubble Space Telescope, give us a better look at the universe than ever before, providing answers to astronomical mysteries and introducing new questions.
Detailed explanation-2: -Telescope is an optical instrument which forms the image of a very far off object nearer to the eye so that the object is seen distinct and bigger. Hence, the telescope is used to observe celestial objects like the moon, planets, stars, etc.
Detailed explanation-3: -Telescopes and radio dishes are used from the surface of the Earth to study visible light, near infrared light, and radio waves. Attached to these telescopes are various tools like special made CCD cameras, a wide variety of filters, photometers and spectrometers.
Detailed explanation-4: -Pistol-Grip Tool. The main tool used by spacewalkers is this 21st century hand-drill, built by Swales Aerospace Inc. Robot Crane. Trace Gas Analyzer. Safety Tethers. 01-Mar-2007