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telescopes

Telescopes
Image: NASA

Telescopes

It all started with the invention of eyeglasses. Today, telescopes let us look billions of miles into space and into the past. They "see" types of light our eyes cannot: infrared, radio waves, x-rays… Before long, they may find evidence of life on a planet orbiting another star.

Find out how telescopes do it, and what can we expect from the super-humongous ones now being built and planned.

Science Channel
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How’s Your Infrared Concentration?

How’s Your Infrared Concentration?

This game tests how well you remember what you see, by showing you awesome images from cutting-edge telescopes, particularly the Spitzer Space Telescope. More...

Game
NASA
Telescopes & Light

Telescopes & Light

Different kinds of telescopes give us different information about the universe by detecting light of different wavelengths. Compare the images from a variety of telescopes. More...

Interactive
Smithsonian Astrophysical Observatory
Giant Telescopes of Tomorrow

Giant Telescopes of Tomorrow

What is dark matter and dark energy? Is there life elsewhere in the universe? To address such questions, we need even better telescopes, and some are being designed and built right now. More...

Images
NOVA/PBS
From Kepler to Webb: The History of the Telescope

From Kepler to Webb: The History of the Telescope

At blinding speed, Hank Green takes you from the earliest telescopes to the Hubble Space Telescope. But the Hubble has a blind spot, which is why the James Webb Space Telescope is launching in 2018. More...

Video
SciShow
How Telescopes ‘See’

How Telescopes ‘See’

Why do most modern telescopes use mirrors instead of lenses, even though mirrors reverse an image? This article brings the reason into sharp focus. More...

Article
NASA
The Ultimate Beginner’s Guide to Telescopes and Amateur Astronomy

The Ultimate Beginner’s Guide to Telescopes and Amateur Astronomy

With text, tips, and tons of videos, this site will get you started in amateur astronomy. And if you're thinking of getting a telescope, you must click here. More...

Video
Eyes on the Sky
Giant Magellan Telescope

Giant Magellan Telescope

Although ground based, the Giant Magellan Telescope will see some 10 times more clearly than the Hubble Space Telescope. How? Find out here — be sure to click the "PBS Special Feature" video. More...

Video
GMTO Corporation
Inventing Telescopes

Inventing Telescopes

Could it be that because some people can't see across a room, astronomers can see billions of light years across space? Maybe. The first eyeglasses, as you'll read here, led to the first telescopes. More...

Article
NOVA/PBS
Scientist Profile: Galactic Astronomer

Scientist Profile: Galactic Astronomer

Meet Marianne Takamiya, who works atop Hawaii's Mauna Kea using the powerful Gemini telescope to look at other galaxies. More...

Profile
DragonflyTV/PBS
Scope It Out!

Scope It Out!

After you complete Level Zero (and get an introduction to refracting and reflecting telescopes), see if you can spy all the components as you work up to Level Four. More...

Interactive
NASA
Spitzer Space Telescope: The Musical

Spitzer Space Telescope: The Musical

You could read about the Spitzer Space Telescope, which detects light in the infrared part of the spectrum. Or you could watch this amazingly well-produced NASA musical video. More...

Video
NASA/JPL
Telescopes from the Ground Up

Telescopes from the Ground Up

Find out about radio, space, and gigantic ground-based telescopes, the science behind telescopes, and more. This site truly scopes out the scopes. More...

Article
Space Telescope Science Institute
The Journey to Palomar

The Journey to Palomar

George Hale built the world's biggest telescope…3 times! His scope on Mt. Palomar in California remained the world's biggest until 1993, and what it saw transformed our understanding of the universe. More...

Profile
PBS
Webb Space Telescope: 3D Tour

Webb Space Telescope: 3D Tour

You can lift it. You can rotate it. With this interactive feature, you can examine every detail of the Webb Space Telescope, due to take over from Hubble in 2018. More...

Interactive
NASA

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