Using Telescopes to Observe Electromagnetic Radiation in Space .

This is a telescope:

So is this:

And this:

Even this:

What are Telescopes Telescopes are instruments that collect electromagnetic radiation and bring it into focus.

Collects: Visible Light Wavelengths: 350-800 nm Optical Telescopes Collects: Visible Light Wavelengths: 350-800 nm Where Located: on Earth and in space

What we look at: Stars, Planets, nebula, galaxies Optical Telescopes What we look at: Stars, Planets, nebula, galaxies What information is provided: Distances using light years, Composition of stars

Optical Telescope Images

Best of Hubble https://www.youtube.com/watch?v=Lmx19_0GX8o

Collects: Radio waves and Microwaves Wavelengths: 1,000 km- 1m Radio Telescopes Collects: Radio waves and Microwaves Wavelengths: 1,000 km- 1m Where Located: on Earth

What we look at: any space in the sky Radio Telescopes What we look at: any space in the sky What information is provided: discovered Pulsars and cosmic background radiation

Radio telescope images

This is an array of telescopes.

Radio telescope data:

Spitzer Space telescope Collects: Infrared Wavelengths: 3.6 to 160 micrometers Where Located: Space

Spitzer Space Telescope What we look at: Stars, galaxies What information is provided: discovered extrasolar planets, youngest star ever found

Spitzer Images Andromeda Galaxy

Collects: X-rays Wavelengths: 0.01-10 nm Where Located: Space Chandra Observatory Collects: X-rays Wavelengths: 0.01-10 nm Where Located: Space

Chandra Observatory What we look at: exploded stars, clusters of galaxies, and matter around black holes. What information is provided: x-rays emitted from hot gasses leaving black holes has been recorded

Chandra Images

Cygnus X-1, first strong black hole discovered.

SNR 0519-69.0 - remains of an exploding star in the Large Magellanic Cloud.

Compton and Fermi Gamma-Ray Observatories Collects: Gamma-rays Wavelengths: 20 keV to 30 GeV Where Located: Space

Compton and Fermi Gamma-Ray Observatories What we look at: deep space, Gamma bursts What information is provided: exploding stars that become black holes as their cores collapse.

Video review https://www.youtube.com/watch?v=sAlrKptnD4Q