Astronomy and Space exploration discussion

Dark matter has a profound effect on our universe, shaping galaxies and even leaving its fingerprints on the energy left over from the Big Bang. Despite its relevance, dark matter is also extremely hard to detect — rather than observe it directly, astronomers instead look for clues based on its gravitational interaction with normal matter (the protons, electrons, and neutrons that make up everything we see and touch). Recent observations made with NASA’s Chandra X-ray Observatory have hinted that dark matter may be “fuzzier” than previously thought.

Well .....So called Dark matter , we do not know what it is and where it has come from or is it really the dark energy which is driving the universe to expand.............it's gets a lot spookier to think all that