The 100-inch (2.54 m) Hooker reflecting telescope at Mount Wilson Observatory near Los Angeles, used by Edwin Hubble to measure galaxy redshifts and discover the general expansion of the universe. A …

Oct 29, 2025 · Telescope, device used to form magnified images of distant objects. The telescope is undoubtedly the most important investigative tool in astronomy. It provides a means of collecting and …

Oct 22, 2024 · Astronomers observe distant cosmic objects using telescopes that employ mirrors and lenses to gather and focus light.

Jul 2, 2025 · What Is a Telescope? A telescope is a precision optical instrument designed to gather and magnify light from distant objects. Its primary job is simple: make the invisible visible.

Nov 27, 2024 · A telescope is an optical instrument designed to observe distant objects by enlarging their apparent size and capturing more light than our eyes can perceive. When our pupil expands to …

A telescope collects the faint light from astronomical sources and brings it to a focus. Light is then directed to a detector, where a permanent record is made.

May 28, 2008 · A telescope is an instrument designed to collect electromagnetic radiation (light) for the observation of remote objects. The word “telescope” comes from the Greek words tele =far and …

The meaning of TELESCOPE is a usually tubular optical instrument for viewing distant objects by means of the refraction of light rays through a lens or the reflection of light rays by a concave mirror.

Sep 19, 2024 · Modern telescopes, whether on Earth or in space, help us explore the universe by collecting and focusing light from distant stars and galaxies. They act like a window into the cosmos, …

How do you know which one is best for you? How can you be sure that you won't be disappoin­ted when you take your new telescope out to see the stars? In this article, we will examine how a telescope …