from the world's big
Gravitational wave researchers observe black holes of different sizes colliding for the first time.
- Gravitational wave researchers at LIGO and Virgo observatories spot black holes of different sizes colliding.
- The finding is unusual because previous black hole mergers involved partners of similar size.
- The new information re-confirms Einstein's theory of relativity.
Researchers find what causes the glow coming from the densest objects in our universe.
- Columbia University astrophysicists discovered the cause of the unusual glow coming from regions of space with black holes and neutron stars.
- The researchers ran some of the largest computer simulations ever to reach their conclusions.
- They found that turbulence and reconnection of super-strong magnetic fields are responsible for the light.
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A massive super-computer simulation demonstrates the strong particle density fluctuations that happen in the extreme turbulent environments home to black holes and neutron stars. The dark blue regions are low particle density regions, and the yellow regions are over-dense regions. Particles are accelerated to extremely high speeds from interacting with turbulence fluctuations.
Getting to close to a black hole is a nightmare waiting to happen.
- Like ocean tides caused by gravity, a nearby black hole would create a 'tide' inside your body, which is mostly water.
- As your body drew nearer to the black hole, your head would be stretched away from your feet.
- Scientists call this streching "spaghettification", from the word of spaghetti.
Feel like traveling to another dimension? Better choose your black hole wisely.
One of the most cherished science fiction scenarios is using a black hole as a portal to another dimension or time or universe. That fantasy may be closer to reality than previously imagined.
Stephen Hawking was one of the greatest scientific and analytical minds of our time, says NASA's Michelle Thaller.
Stephen Hawking was one of the greatest scientific and analytical minds of our time, says NASA's Michelle Thaller. She posits that Hawking might be one of the parents of an entirely new school of physics because he was working on some incredible stuff—concerning quantum entaglement— right before he died. He was even humble enough to go back to his old work about black holes and rethink his hypotheses based on new information. Not many great minds would do that, she says, relaying just one of the reasons Stephen Hawking will be so deeply missed. You can follow Michelle Thaller on Twitter at @mlthaller.