|
![]() |
#2986 | |
Kind of a mod
Join Date: Aug 2005
Location: Donkey Land
Casino cash: $716899
|
Quote:
So to answer your question, the experience of getting sucked into one wouldn't be that different from getting sucked into a star aside from the fact that you would be ripped apart into tiny little atoms and then added to the giant mass rather than burned up. (But all that being said, we've never actually observed anything like that, so that's just in theory.) |
|
Posts: 52,218
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
![]() |
![]() |
#2987 | |
Bring it on Ahab!
Join Date: May 2011
Location: Doo-Dah
Casino cash: $10015152
|
Quote:
I like the temporal fun time of the Kerr theory though. Time travel is neat! |
|
Posts: 14,861
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
![]() |
![]() |
#2988 | |
In Search of a Life
Join Date: Jul 2009
Casino cash: $1714064
|
Quote:
They're so dense and to be honest, we really don't KNOW what the hell is goin on in there. It's fascinating. |
|
Posts: 82,096
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
![]() |
![]() |
#2989 |
In Search of a Life
Join Date: Jul 2009
Casino cash: $1714064
|
|
Posts: 82,096
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
![]() |
![]() |
#2990 |
Bono & Grbac wasn't enough
Join Date: Oct 2000
Location: Sioux City, IA
Casino cash: $11793829
|
They're denser than knowmo? That's pretty hard to believe.
__________________
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Advertise here: $19.99 a month |
Posts: 36,122
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
![]() |
![]() |
#2991 |
Ain't no relax!
Join Date: Sep 2005
Casino cash: $998919
|
Another interesting fact about black holes... we can't seem to find any medium-sized ones. We've located many small ones, and many supermassive ones. But no intermediate sized black holes. Which seems really strange...
Missing Seeds: Mysterious Enigma of Supermassive Black Holes In the vast garden of the universe, the heaviest black holes grew from seeds. Nourished by the gas and dust they consumed, or by merging with other dense objects, these seeds grew in size and heft to form the centers of galaxies, such as our own Milky Way. But unlike in the realm of plants, the seeds of giant black holes must have been black holes, too. And no one has ever found these seeds — yet. One idea is that supermassive black holes — the equivalent of hundreds of thousands to billions of Suns in mass — grew from a population of smaller black holes that has never been seen. This elusive group, the “intermediate-mass black holes,” would weigh in somewhere between 100 and 100,000 Suns. Among the hundreds of black holes found so far, there have been plenty of relatively small ones, but none for sure in the intermediate mass-range “desert.” Scientists are working with powerful space telescopes from NASA, as well as other observatories, to track down far-flung objects that fit the description of these exotic entities. They have found dozens of possible candidates, and are working toward confirming them as black holes. But even if they do, that opens up a whole new mystery: How did intermediate-mass black holes form? “What is fascinating, and why people have spent so much time trying to find these intermediate-mass black holes, is because it sheds light on processes that happened in the early universe— what were the masses of relic black holes, or new formation mechanisms for black holes that we haven’t thought of yet,” said Fiona Harrison, professor of physics at Caltech in Pasadena, California, and principal investigator for NASA’s NuSTAR mission. The smallest black holes are called “stellar mass,” with between 1 and 100 times the mass of the Sun. They form when stars explode in violent processes called supernovae. Supermassive black holes, on the other hand, are the central anchors of large galaxies – for example, our Sun and all other stars in the Milky Way orbit a black hole called Sagittarius A* that weighs about 4.1 million solar masses. An even heavier black hole — at a whopping 6.5 billion solar masses — serves as the centerpiece for the galaxy Messier 87 (M87). M87’s supermassive black hole appears in the famous image from the Event Horizon Telescope, showing a black hole and its “shadow” for the very first time. [...] The density of matter needed to create a black hole is mind-boggling. To make a black hole 50 times the mass of the Sun, you would have to pack the equivalent of 50 Suns into a ball less than 200 miles (300 kilometers) across. But in the case of M87’s centerpiece, it is as though 6.5 billion Suns were compressed into a ball wider than the orbit of Pluto. In both cases, the density is so high that the original material must collapse into a singularity— a rip in the fabric of space-time. Key to the mystery of black holes’ origins is the physical limit on how fast they can grow. Even the giant monsters at the centers of galaxies have limitations on their feeding frenzies, because a certain amount of material is pushed back by the high-energy radiation coming from hot particles accelerated near the event horizon. Just by eating surrounding material, a low-mass black hole might only be able to double its mass in 30 million years, for example. “If you start from a mass of 50 solar masses, you simply cannot grow it to 1 billion solar masses over 1 billion years,” said Igor Chilingarian, an astrophysicist at the Smithsonian Astrophysical Observatory, Cambridge, Massachusetts, and Moscow State University. But, “as we know, there are supermassive black holes that exist less than 1 billion years after the formation of the universe.” [...] Intermediate-mass black hole hunters eagerly await the launch of NASA’s James Webb Space Telescope, which will peer back to the dawn of the first galaxies. Webb will help astronomers figure out which came first — the galaxy or its central black hole — and how that black hole might have been put together. In combination with X-ray observations, Webb’s infrared data will be important for identifying some of the most ancient black hole candidates. Another new tool launched in July by the Russian space agency Roscosmos is called Spectrum X-Gamma, a spacecraft that will scan the sky in X-rays, and carries an instrument with mirrors developed and built with NASA Marshall Space Flight Center, Huntsville, Alabama. Gravitational-wave information flowing from the LIGO-Virgo collaboration will also aid in the search, as will the European Space Agency’s planned Laser Interferometer Space Antenna (LISA) mission.
__________________
![]() |
Posts: 48,143
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
![]() |
![]() |
#2992 |
NFL's #1 Ermines Fan
Join Date: Jul 2001
Location: My house
Casino cash: $2008491
![]() |
Black holes terrify me. I don't want to be ripped to pieces, and those things are wandering around all over the place.
__________________
Active fan of the greatest team in NFL history. |
Posts: 142,434
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
![]() |
![]() |
#2993 |
New and Improved
Join Date: Mar 2002
Location: Springfield, Mo.
Casino cash: $188590
|
Seems like there's been one in our neighborhood of the galaxy forever.
__________________
“As a nation, we can endure damaging policies for a four-year term. But we cannot survive a president willing to terminate our Constitution”
|
Posts: 21,701
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
![]() |
![]() |
#2994 |
The 23rd Pillar
Join Date: Sep 2002
Casino cash: $10019237
|
And they say you can't even see them!
__________________
![]() “Boy, you all want power. God, I hope you never get it.” - Lindsay Graham |
Posts: 110,871
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
![]() |
![]() |
#2995 |
Ain't no relax!
Join Date: Sep 2005
Casino cash: $998919
|
I, for one, welcome our future robotic overlords...
boston Dynamics 2009 vs 2019. from r/BeAmazed
__________________
![]() |
Posts: 48,143
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
![]() |
![]() |
#2996 |
Rookie
Join Date: Sep 2019
Casino cash: $10000400
|
Lol is it just me or do you get a feeling that AI is evolving into the next dominant species that will eventually take over making our intellect look like that of a chimps in comparison.
|
Posts: 25
![]() |
![]() |
![]() |
#2997 |
NFL's #1 Ermines Fan
Join Date: Jul 2001
Location: My house
Casino cash: $2008491
![]() |
This is more about nature being cool than science being cool, but check out the interesting spotted zebra that was born recently:
https://www.nationalgeographic.com/a...trol::int_rid= National Geographic won't let me copy the picture. They've figured out how to get people to click the link, I guess.
__________________
Active fan of the greatest team in NFL history. |
Posts: 142,434
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
![]() |
![]() |
#2998 |
Ain't no relax!
Join Date: Sep 2005
Casino cash: $998919
|
Well... this is weird. And will no doubt become controversial...
Life on Mars could be found within two years but world is ‘not prepared’, Nasa’s chief scientist says Leading astronomer says discovery will open up ‘whole new line of thinking’ Nasa is close to finding life on Mars but the world is not ready for the “revolutionary” implications of the discovery, the space agency’s chief scientist has said. Dr Jim Green has warned that two rovers from Nasa and the European Space Agency (ESA) could find evidence of life within months of arriving on Mars in March 2021. The ExoMars Rover, which has been dubbed “Rosalind” in memory of British chemist Rosalind Franklin, will search for extra-terrestrial life by drilling 6.5 feet down into Mars’ core to take samples. Those samples will then be crushed up and examined for organic matter in a mobile laboratory. Dr Green compared the potential discovery to when the astronomer Nicolaus Copernicus stated that the Earth revolves around the Sun in the 16th century. “It will start a whole new line of thinking. I don’t think we’re prepared for the results,” he told The Sunday Telegraph. “I’ve been worried about that because I think we’re close to finding it and making some announcements.” Nasa’s rover Mars 2020 will drill into rock formations on the planet before sending test-tubes of rock samples back to Earth – the first time material from Mars will have been brought onto this planet. Dr Green added that the discovery of life on Mars will give scientists a new set of questions to explore. “What happens next is a whole new set of scientific questions. Is that life like us? How are we related?” he said. “Can life move from planet-to-planet or do we have a spark and just the right environment and that spark generates life – like us or do not like us – based on the chemical environment that it is in?” Recent research has shown that planets which were previously thought to be uninhabitable may have once had suitable conditions for life. Earlier this year, scientists discovered that there may be a vast and active system of water running underneath the surface of Mars. A study released this month also claimed that Venus may have been habitable for 2 to 3 billion years before its atmosphere became incredibly dense and hot about 700 million years ago. Recent research suggests that civilisations could exist on other planets, according to Dr Green. “There is no reason to think that there isn’t civilisations elsewhere, because we are finding exoplanets [planets outside the solar system] all over the place,” he said. His comments came less than 24 hours before technology entrepreneur Elon Musk unveiled a SpaceX spacecraft designed to carry crew and cargo to Mars or other planets in the solar system before returning to Earth. Mr Musk said the company’s Starship was essential for the viability of space travel by introducing a spacecraft that can be reused. The ship is expected to take off for the first time in about two months and reach 65,000 feet before it lands back on Earth.
__________________
![]() |
Posts: 48,143
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
![]() |
![]() |
#2999 |
In Search of a Life
Join Date: Jul 2009
Casino cash: $1714064
|
They're slow rolling the ET stuff. It's coming out.
|
Posts: 82,096
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
![]() |
![]() |
#3000 |
Banned!
Join Date: Sep 2000
Location: NOT Columbia, MO 65201
Casino cash: $1970194
|
Planet-hunting NASA satellite captures a star being ripped apart by a black hole
https://www.fox5atlanta.com/news/pla...FExOrt6IG8ltuM
__________________
![]() Your son is a bench warmer because of your weak genetics not because of the coach Norlin Mommsen is disgusting. |
Posts: 46,500
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
![]() |
![]() ![]() |
|
|