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Scientists Say: Telescope | Science Information Explores



ambiance: The envelope of gases surrounding Earth, one other planet or a moon.

black gap: A area of area having a gravitational subject so intense that regardless of or radiation (together with mild) can escape.

crater: A big, bowl-shaped cavity within the floor or on the floor of a planet or the moon. They’re sometimes attributable to an explosion or the impression of a meteorite or different celestial physique. Such an impression is usually known as a cratering occasion.

focus: (in physics) The purpose at which rays (of sunshine or warmth for instance) converge generally with assistance from a lens. (In imaginative and prescient, verb, “to focus”) The motion an individual’s eyes take to adapt to mild and distance, enabling them to see objects clearly.

gamma rays: Excessive-energy radiation usually generated by processes in and round exploding stars. Gamma rays are probably the most energetic type of mild.

glass: A tough, brittle substance comprised of silica, a mineral present in sand. Glass normally is clear and pretty inert (chemically nonreactive). Aquatic organisms known as diatoms construct their shells of it.

Jupiter: (in astronomy) The photo voltaic system’s largest planet, it has the shortest day size (9 hours, 55 minutes). A fuel big, its low density signifies that this planet consists principally of the sunshine parts hydrogen and helium. This planet additionally releases extra warmth than it receives from the solar as gravity compresses its mass (and slowly shrinks the planet).

lens: (comparable to glass) that bends incoming mild in such a approach as to focus it at a selected level in area. Or one thing, comparable to gravity, that may mimic a number of the mild bending attributes of a bodily lens. 

moon: The pure satellite tv for pc of any planet.

observatory: (in astronomy) The constructing or construction (comparable to a satellite tv for pc) that homes a number of telescopes. Or it may be a system of buildings that make up a telescope complicated.

optical: An adjective that refers to mild or imaginative and prescient.

radio waves: Waves in part of the electromagnetic spectrum. They’re a sort that individuals now use for long-distance communication. Longer than the waves of seen mild, radio waves are used to transmit radio and tv alerts. Additionally they are utilized in radar.

telescope: Often a light-collecting instrument that makes distant objects seem nearer by means of the usage of lenses or a mix of curved mirrors and lenses. Some, nonetheless, acquire radio emissions (power from a unique portion of the electromagnetic spectrum) by means of a community of antennas.

instrument: An object that an individual or different animal makes or obtains after which makes use of to hold out some goal comparable to reaching meals, defending itself or grooming.

ultraviolet: A portion of the sunshine spectrum that’s near violet however invisible to the human eye.

ultraviolet mild: A kind of electromagnetic radiation with a wavelength from 10 nanometers to 380 nanometers. The wavelengths are shorter than that of seen mild however longer than X-rays.

universe: The complete cosmos: All issues that exist all through area and time. It has been increasing since its formation throughout an occasion referred to as the Huge Bang, some 13.8 billion years in the past (give or take a couple of hundred million years).

X-ray: A kind of radiation analogous to gamma rays, however having considerably decrease power.

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