Theorized but never imaged directly, black holes may finally be ready for their close-up.
An artist's conception of a supermassive black hole with millions to billions times the mass of our sun. By Sarah Kaplan and Sarah Kaplan Reporter for Speaking of Science Email Bio Follow Joel Achenbach Joel Achenbach Reporter covering science and politics Email Bio April 9 at 1:18 PM At precisely 13:00 Universal Time on Wednesday — 9 a.m.
Just months after Einstein’s equations were published, a German scientist, Karl Schwarzschild, tweaked Einstein’s equations and came up with a disconcerting conclusion. If an object was dense enough, he found, it would eventually punch through the universe’s fabric, creating a bottomless pit in spacetime known as a singularity.
But stellar-mass black holes, the kind that form from collapsed stars, are not the only black holes in the universe. In case you’re wondering, black holes are not among the many things that humans should be worried about. They aren’t rogue entities on the prowl, looking to devour nice planets. They’re not cosmic vacuum cleaners. Still, you wouldn’t want to cross the event horizon. That would go badly. If you fell feet-first, the gravitational tug on your feet would be greater than on your head and that tidal force would rip you apart. You’d be, as astrophysicists say, spaghettified.
The physicist John Wheeler famously declared that black holes “have no hair,” meaning no hairstyle, nothing personal and flashy. The physicist Brian Greene, in his book “The Elegant Universe,” notes that this featurelessness of black holes makes them oddly similar to subatomic particles, leading to “the strange speculation that black holes might actually be gigantic elementary particles.”
Brasil Últimas Notícias, Brasil Manchetes
Similar News:Você também pode ler notícias semelhantes a esta que coletamos de outras fontes de notícias.
Scientists set to unveil first picture of a black holeAstronomers across the globe will hold 'six major press conferences' simultaneously on Wednesday to announce the first results of the Event Horizon Telescope (EHT).
Consulte Mais informação »
The first-ever photo of a black hole is expected very soonThe Event Horizon Telescope Collaboration is expected to release the first-ever photos of a black hole on April 10, and anticipation is building.
Consulte Mais informação »
Trump criticized for calling Netanyahu 'your prime minister' at Jewish Republican event'Mr. President, words matter,' tweeted the ADL's CEO. 'its critical for you to avoid language that leads people to believe Jews aren’t loyal Americans.'
Consulte Mais informação »
Bernie Sanders calls Trump a racist before Apollo eventNEW YORK (AP) — Sen. Bernie Sanders made a trip to the Apollo Theater in Harlem to pay tribute to Harry Belafonte, Tony Bennett and the legacy of the Rev. Martin Luther King Jr., but along the way slammed President Donald Trump as a racist.
Consulte Mais informação »
Dispute Mars Conclusion of NATO Anniversary Event in WashingtonA dispute between the U.S. and Turkey over a Russian air-defense system continued on the last day of an international gathering to mark the anniversary of the founding of the North Atlantic Treaty Organization
Consulte Mais informação »
Nipsey Hussle's memorial service will not be a ticketed event'I want to officially let NipseyHussle fans & supporters know there will be NO selling of tickets to his funeral.'
Consulte Mais informação »
University of Arizona will charge 2 students over protest of Border Patrol event on campusVideo showed two Border Patrol agents giving a classroom presentation, while people outside called them 'Murder Patrol' and 'an extension of the KKK.'
Consulte Mais informação »
WrestleMania 35: Becky Lynch defeats Ronda Rousey in first-ever all-women main eventGet breaking national and world news, broadcast video coverage, and exclusive interviews. Find the top news online at ABC news.
Consulte Mais informação »