“Where you used to be, there is a hole in the world, which I find myself constantly walking around in the daytime, and falling in at night. I miss you like hell.” –Edna St. Vincent Millay It was just a little while ago that we were all speculating wildly — and optimistically — about Comet … Read moreThe Largest Trainwrecks in the Universe
“I followed him at the time and thought he was hysterical. He was the first serial killer, a new kettle of fish, because we didn’t have the detection techniques in those days.” –Matthew Bright You can’t get mad at a team for trying the improbable, hoping that nature cooperates. Some of the most famous discoveries … Read moreThe Limitations of Directly Detecting Dark Matter
“A cosmic mystery of immense proportions, once seemingly on the verge of solution, has deepened and left astronomers and astrophysicists more baffled than ever. The crux … is that the vast majority of the mass of the universe seems to be missing.” –William J. Broad It was in the 1930s, looking at dense clusters of … Read moreThe Little Bit of Dark Matter We Know
“To disagree leads to study, to study leads to understanding, to understand is to appreciate, to appreciate is to love. So maybe I’ll end up loving your theory.” –John Wheeler Out there in the Universe, there’s a lot to marvel at. Over billions of years, gravity has attracted different portions of the expanding Universe together … Read moreDoes Dark Matter affect the motion of the Solar System?
“Because dark energy makes up about 70 percent of the content of the universe, it dominates over the matter content. That means dark energy will govern expansion and, ultimately, determine the fate of the universe.” –Eric Linder It’s been a while since we’ve spoken about dark energy, and we were just talking about Einstein’s greatest … Read moreWhat is dark energy?
“Supposedly she’d died, but here she was again–somewhat changed, but you couldn’t kill her. Not when the truest part of her hadn’t even been born.” –Denis Johnson Over the past 100 years, our picture of the Universe has changed dramatically, on both the largest scales and the smallest. On the large-scales, we’ve gone from a … Read moreThe Rise and Fall of Supersymmetry
“The cosmos is all that is or ever was or ever will be. Our feeblest contemplations of the Cosmos stir us—there is a tingling in the spine, a catch in the voice, a faint sensation, as if a distant memory, or falling from a height. We know we are approaching the greatest of mysteries.” –Carl … Read moreWhat Makes Up The Universe?
“A cosmic mystery of immense proportions, once seemingly on the verge of solution, has deepened and left astronomers and astrophysicists more baffled than ever. The crux… is that the vast majority of the mass of the universe seems to be missing.” –William J. Broad Three classic observations — the Hubble expansion of the Universe, the … Read moreWhat Matters about Dark Matter?
“On what can we now place our hopes of solving the many riddles which still exist as to the origin and composition of cosmic rays?” –Victor Francis Hess We’ve come a tremendously long way in our understanding of the Universe, but there are plenty of mysteries still to be revealed. Way back in the late … Read moreIt'll take a lot more than AMS to find Dark Matter
“Much later, when I discussed the problem with Einstein, he remarked that the introduction of the cosmological term was the biggest blunder he ever made in his life. But this “blunder,” rejected by Einstein, is still sometimes used by cosmologists even today, and the cosmological constant denoted by the Greek letter Λ rears its ugly … Read moreWhat The Entire Universe Is Made Of, Thanks to Planck!