Dark Matter Home Where are we? What is a galaxy? How are galaxies formed? What is at the center of our galaxy? What does gravity do in a galaxy? Bibliography

Gravitational Lensing Due to Dark Matter Dark Matter is the missing material astronomers and astrophysicists needed to solve the missing mass conundrum. Dark Matter has a few very strange properties. It neither emits, nor absorbs light or EM radiation. It cannot be directly looked at. The solution is not to look at dark matter itself, but to look for its gravitational effects. We know that gravity bends light, so dark matter should distort the image behind it. Shown above is an effect called gravitational lensing. This is one of the many pieces of evidence for the existence of dark matter. Image credit:spacetelescope.org

A quick video on what dark matter is and its effects, as well as NASA's Fermi large area telescope. Video credit: Youtube.com