Galactic Smash-Up Shows Where Dark Matter Goes | Wired Science | Wired.com To figure out dark matters location, astronomers looked for the telltale stretching of galaxies located far behind the cluster. Huge masses warp the shape of space-time in their vicinity and bend the path of light, a phenomenon called gravitational lensing. By carefully plotting how galaxies in the background are distorted, astronomers can map where the invisible mass of dark matter lies. ------------ It's the same thing with locating a "black hole". Either by the energy it releases as matter is sucked into it or by the lensing effect of light being distorted around the even horizon. We know that light is affected by gravity. --------------------- When a lot of dark matter clumps together, as in massive galaxy clusters that contain hundreds or thousands of galaxies, it can act as an enormous magnifying glass for even more distant galaxies. The clusters gravity stretches and distorts the light from galaxies behind it like a fun house mirror. Astronomers on Earth see multiple warped images of each galaxy, a phenomenon called gravitational lensing. Gravitational lensing can give a good idea of how much dark matter is in a cluster, but up until now astronomers had to guess at where exactly the dark matter was. Now, using an image from Hubbles Advanced Camera for Surveys, astronomers have built a high-resolution map of exactly where the dark stuff lurks in a galaxy cluster called Abell 1689. Hubble Helps Build Most-Detailed Dark Matter Map Yet | Wired Science | Wired.com ------------------- I love evolution in all it's forms. Science is glorious. That's the thing about science. It's "continuous learning". There is always more to learn. I read that scientists "trapped" a "proton". Amazing. -------------------- Scientists Trap Antimatter For More Than 16 Minutes [Singularity Hub] « Darkly Through the Glass Scientists Trap Antimatter For More Than 16 Minutes By Peter Murray Score another victory in sciences relentless pursuit to make all things Star Trek a reality. To the list that already includes universal translators, voice-activated computers, andsort ofreplicators, we now get to add antimatter containment pods. Scientists at CERN have rigged a container to trap anti-matter for more than 16 minutes. It may be a while before theyre used to store energy for antimatter fuel cells, but these ingenious containers are expected to allow particle physicists to go where no particle physicists have gone before. To begin with, in case you were wondering: yes, antimatter is real. As one of the wonderful examples of where a discovery is worked out on paper before its actually observed, English physicist and quantum mechanics giant Paul Dirac predicted antimatter while working out a mathematical model of the subatomic world. Four years later the American physicist Carl Anderson observed such a particle: an electron with the same mass as normal electrons, but with a positive charge. ---------------------------- How can some believe "science is a religion" or "scientists don't contribute" or "scientists sit on their lazy butts and do nothing but collect money from having a fancy degree? In part, it's the fault of scientists who don't bother to teach. Another part is those who refuse to understand because it threatens their "beliefs". We could be doing so much more.