Light, or some other electromagnetic radiation such as x-rays, radio waves, etc.
CW: That is a good answer. I would have guessed dust.
Most telescopes collect and focus light from distant objects in space, such as stars, planets, and galaxies. This focused light is then magnified and analyzed by astronomers to study and make observations about the universe.
Radio telescopes collect radio waves. Optical telescopes capture visible light waves.
by using telescopes and satellites.
mirrors and/or lenses
refracting
Telescopes are made to view distant objects that cannot be seen clearly with the human eye. Many telescopes only collect light that is visible to the human eye, but others can collect different frequencies of electromagnetic radiation including x-rays, ultraviolet, and infrared.
the study of astronomy is to collect lite from objects in deep space with telescopes and ridio telescopes and to find out how life evolved
Radio telescopes collect radio waves. Optical telescopes capture visible light waves.
Most telescopes are designed for observing distant celestial objects such as stars, planets, galaxies, and nebulae. They are used for tasks like astronomical research, astrophotography, and amateur stargazing.
Radio telescopes, refracting telescopes, and reflecting telescopes all use mirrors or lenses to collect and focus incoming electromagnetic radiation. The main difference is the wavelength of the radiation they are designed to study – radio telescopes focus on radio waves, refracting telescopes focus on visible light, and reflecting telescopes focus on a variety of wavelengths including visible light, ultraviolet, and infrared.
Telescopes collect electromagnetic energy, not mechanical energy.
A Telescope uses lenses or mirrors to collect and focus light from distant objects. With the advancement in optical research we are capable to watch the stars and planets better than before. Our information about universe largely depend on telescopes.