A galaxy without dark matter — or without some bizarre effect of gravity that would mimic dark - matter behavior — would be a very weird thing indeed. (scientificamerican.com)
Monday's announcement suggests a much more definitive detection, based on the direct effect of gravity waves on the cosmic microwave background radiation. (sciencenews.org)
It's a big deal to find the direct effects of gravity waves from 13 billion years ago, especially since efforts to find them from more recent sources — like black hole formation after supernova explosions — haven't succeeded. (sciencenews.org)