
Telescope - Wikipedia
A telescope is a device used to observe distant objects by their emission, absorption, or reflection of electromagnetic radiation. [1] . Originally, it was an optical instrument using lenses, curved mirrors, or …
Telescope | History, Types, & Facts | Britannica
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 …
Telescopes 101 - Science@NASA
Oct 22, 2024 · Astronomers observe distant cosmic objects using telescopes that employ mirrors and lenses to gather and focus light.
What Is a Telescope and Why Do You Need One?
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.
How Telescopes Work: Peering into the Cosmos
Jul 28, 2025 · Telescopes are translators, gathering and focusing these forms of electromagnetic radiation to make the invisible visible. Light travels in straight lines until it interacts with …
10.1: Telescopes - Physics LibreTexts
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.
How Telescopes Work - HowStuffWorks
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 …
What is a Telescope? - Windows to the Universe
May 28, 2008 · Although there are many different types of telescopes, they all work in a similar way. A telescope is an instrument designed to collect electromagnetic radiation (light) for the observation of …
What You Need To Know About Your Telescope - High Point Scientific
May 23, 2025 · In this guide, we’ll talk about exactly that - the Moon, planets, stars, and everything that lies beyond! But first, let’s start with a brief overview of what you should know about your scope and …
TELESCOPE Definition & Meaning - Merriam-Webster
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.