|Pinwheel in many colors! |
Chandra photo album
The fabulous Chandra X-ray photo of the Pinwheel galaxy is a combination of light from different wavelengths.
Our eyes see also earthly objects through the light they emit or reflect or block in shadows. Many telescopes collect light in the visible range of the spectrum familiar to us from the rainbow. Other instruments have been created in order to detect light in the infra-red or ultraviolet ranges invisible to human eyes.
Branches of Astronomy by electromagnetic wavelengths
|Cos B Gamma-ray telescope. NASA|
- Gamma-ray astronomy has developed into a special branch of space sciences since 1960'ies.
- Special receivers detect X-rays like the NASA flagship Chandra X-ray Observatory.
- Radio astronomy is looking - or rather listening - to EM waves emitted in the radio frequencies - in this link is an image gallery of some of worlds most important devices including sophisticated Very Large Interferometry (VLBI) systems the pride of the countries that have them.
- Cosmic microwave background astronomy is unravelling deep secrets of the cosmos. Currently scientists hopes are focused especially on the BICEP2 cosmic microwave background polarization experiment located at the South Pole.