Is it possible to pull something out of a black hole? (Synopsis)

“Nobody ever did, or ever will, escape the consequences of his choices.” -Alfred A. Montapert So you’re passing by a black hole in a massive, fast-moving spaceship, and you want to do an experiment: you tether a small mass outside of the ship and let it fall into the black hole, just allowing it the … Read moreIs it possible to pull something out of a black hole? (Synopsis)

How uncertain are LIGO’s first gravitational wave detections? (Synopsis)

“We hope that interested people will repeat our calculations and will make up their own minds regarding the significance of the results. It is obvious that “belief” is never an alternative to “understanding” in physics.” -J. Creswell et al. Three times now, the LIGO collaboration has produced very strong evidence that black hole pairs, from … Read moreHow uncertain are LIGO’s first gravitational wave detections? (Synopsis)

Was It All Just Noise? Independent Analysis Casts Doubt On LIGO’s Detections (Synopsis)

“What’s really exciting is what comes next. I think we’re opening a window on the universe — a window of gravitational wave astronomy.” -Dave Reitze, executive director of LIGO It revolutionized our view of the Universe when the LIGO annoucements – and we’re up to three, now – came out. They indicated the direct detection … Read moreWas It All Just Noise? Independent Analysis Casts Doubt On LIGO’s Detections (Synopsis)

Newest LIGO Signal Raises A Huge Question: Do Merging Black Holes Emit Light? (Synopsis)

“The black holes collide in complete darkness. None of the energy exploding from the collision comes out as light. No telescope will ever see the event.” -Janna Levin Whenever there’s a catastrophic, cataclysmic event in space, there’s almost always a tremendous release of energy that accompanies it. A supernova emits light; a neutron star merger … Read moreNewest LIGO Signal Raises A Huge Question: Do Merging Black Holes Emit Light? (Synopsis)

Ask Ethan: How many Black Holes are there in the Universe? (Synopsis)

“Black holes are the seductive dragons of the universe, outwardly quiescent yet violent at the heart, uncanny, hostile, primeval, emitting a negative radiance that draws all toward them, gobbling up all who come too close…these strange galactic monsters, for whom creation is destruction, death life, chaos order.” -Robert Coover For the third time since it … Read moreAsk Ethan: How many Black Holes are there in the Universe? (Synopsis)

Nothing Escapes From A Black Hole, And Now Astronomers Have Proof (Synopsis)

“Where we’re going, we won’t need eyes to see.” -Sam Neill, Event Horizon Are event horizons real? With data taken from around a dozen observatories earlier this year, simultaneously, the Event Horizon Telescope is poised to put together the first-ever direct image of the black hole at the center of our galaxy Sagittarius A*. If … Read moreNothing Escapes From A Black Hole, And Now Astronomers Have Proof (Synopsis)

Surprise! The Universe Has A Third Way To Form Black Holes (Synopsis)

“N6946-BH1 is the only likely failed supernova that we found in the first seven years of our survey. During this period, six normal supernovae have occurred within the galaxies we’ve been monitoring, suggesting that 10 to 30 percent of massive stars die as failed supernovae.” -Scott Adams Everyone knows the recipe for a black hole: … Read moreSurprise! The Universe Has A Third Way To Form Black Holes (Synopsis)

Ask Ethan: What happens when a black hole’s singularity evaporates? (Synopsis)

“My discovery that black holes emit radiation raised serious problems of consistency with the rest of physics. I have now resolved these problems, but the answer turned out to be not what I expected.” -Stephen Hawking One of the most puzzling things about Black Holes is that if you wait around long enough, they’ll evaporate … Read moreAsk Ethan: What happens when a black hole’s singularity evaporates? (Synopsis)

There is sound in space, thanks to gravitational waves (Synopsis)

“We have never observed infinity in nature. Whenever you have infinities in a theory, that’s where the theory fails as a description of nature. And if space was born in the Big Bang, yet is infinite now, we are forced to believe that it’s instantaneously, infinitely big. It seems absurd.” -Janna Levin You’ve likely heard … Read moreThere is sound in space, thanks to gravitational waves (Synopsis)

Comments of the Week #158: from event horizons to time travel

“Time travel used to be thought of as just science fiction, but Einstein’s general theory of relativity allows for the possibility that we could warp space-time so much that you could go off in a rocket and return before you set out.” -Stephen Hawking As always, there’s been a new fantastic week of articles here at … Read moreComments of the Week #158: from event horizons to time travel