How do space telescopes study the distribution of dark matter?

Space telescopes play a crucial role in studying the distribution of dark matter in the universe. One of the techniques used by space telescopes is gravitational lensing, which occurs when the gravitational field of a massive object, such as a galaxy or a cluster of galaxies, bends the light coming from more distant objects. By observing these gravitational lensing effects, astronomers can map out the distribution of dark matter in the universe.

Another technique used by space telescopes is observing the cosmic microwave background, which is the remnant radiation from the Big Bang. Variations in the cosmic microwave background provide information about the distribution of matter, including dark matter, in the early universe. Space telescopes like the Planck satellite have been instrumental in studying these variations and shedding light on the distribution of dark matter.

In conclusion, space telescopes use techniques such as gravitational lensing and observing the cosmic microwave background to study the distribution of dark matter in the universe. These observations are crucial for advancing our understanding of dark matter and its role in shaping the structure of the universe.