How to use Dark Matter to look further back in space (and time!)
Today, at the American Astronomical Society’s 223rd conference meeting, the Frontier Fields program held a press conference to discuss one of the newest and most ground-breaking programs the space telescopes have ever been used for.
The Hubble Space Telescope, NASA’s Chandra X-ray Observatory, and Spitzer Space Telescope are looking into very deep galaxy fields to attempt to look even further back in space than ever observed before.
The way they’re able to accomplish this is by using gravitational lensing caused by dark matter. Since light interacting with dark matter is achromatic, that is that it doesn’t affect how the colour of light shifts, astronomers are able to get very precise measurements of extremely far and immensely old objects in our Universe.
This video was released by the Space Telescope Science Institute today with the press conference, narrated by Frank Summers to give the public a primer of what this program will be working to accomplish!
Press release: http://hubblesite.org/newscenter/archive/releases/2014/01/