As you fall feet first across an event horizon—the point where nothing can escape the black hole’s gravitational pull—you don’t feel anything change. But eventually, gravity is so much stronger at your feet than your head that you’re stretched apart, like Play-Doh, until you snap. Or at least, that’s the picture physicists drew after Einstein proposed his theory of general relativity in 1915. In the past few years, new possibilities for your untimely end have emerged.
A brilliant “ring of fire” has been spotted in deep space, giving astronomers a rare glimpse of a galaxy 12 billion light-years away.
The near-perfect “Einstein ring” was captured at a super-high resolution of 23 milliarcseconds by the Atacama Large Millimeter/submillimeter Array (ALMA), a ground telescope in the Atacama desert in Northern Chile.
NASA is certain: We’re not alone in this universe.
Speaking at a public panel on Tuesday in Washington D.C., NASA scientists discussed the likelihood of finding organic life in our solar system. Given the surprising number of oceans residing throughout our celestial home, they say “it’s definitely not an if, it’s a when.”
Have you ever asked yourself what would happen if the Earth stopped spinning right now? For you it would be like being in a car at 1000 miles per hour and stopping dead in your tracks—you would die instantly. But, believe it or not, it gets even worse after that, as this video explains.
What are those things?
For the past eight years, astronomers have been scratching their heads over a series of strange radio signals emanating from somewhere in the cosmos. And now, the mystery has deepened.
The new discovery in Australia dwarfs Meteor Crater in Arizona, one of the best preserved meteorite craters in the world. The crater in Australia is nearly 250 times larger than Meteor Crater.