Black Holes
| Use attributes for filter ! | |
| Google books | books.google.com |
|---|---|
| Originally published | 1996 |
| Authors | Heather Couper |
| Illustrators | Luciand Corbella |
| Date of Reg. | |
| Date of Upd. | |
| ID | 2403395 |
About Black Holes
Black holes are the most mysterious and misunderstood elements in the universe. Although no one has ever seen a black hole, Black Holes explains and depicts these mystifying objects. . . .
Scientists see early universe in slow-motion for first time
... Researchers observed data from quasars - objects powered by " supermassive" Black Holes at the centre of early galaxies - using them to measure time near the beginning of the universe...
Scientists pick up shock waves from colliding galaxies
...By Pallab GhoshScience correspondentScientists have picked up shock waves from the orbit of supermassive Black Holes at the heart of distant galaxies as they begin to merge...
Astronomers detect largest cosmic explosion ever seen
... All galaxies are thought to have giant Black Holes at their heart...
The countries launching missions to the Moon and beyond in 2023
... China plans to put a telescope called Xuntian into low Earth orbit in December 2023, to map distant stars and Black Holes...
Giant Lovell radio telescope at Jodrell Bank to become space light show
... The Lovell telescope is now involved in studies of cosmic objects, including supermassive Black Holes in other galaxies, which were not even known to exist when Manchester physicist Sir Bernard Lovell designed and built the giant telescope...
Neutron star chaser: Telescope spots dead suns crash
......
Mariupol steelworks evacuees: 'We were losing hope that we would ever get out'
... " But the war had taken its toll on their home city, which they saw the wreckage of as they left: " What we saw were just boxes with massive Black Holes in them...
Scientists claim hairy black holes explain Hawking paradox
... He highlighted that Black Holes behave in a way that puts two fundamental theories at odds with each other...
Scientists see early universe in slow-motion for first time
Scientists have observed the early universe running " five times slower" for the First Time .
Researchers observed data from quasars - objects powered by " supermassive" Black Holes at the centre of early galaxies - using them to measure time near The Beginning of The Universe .
Quasars are among the brightest and most distant known celestial objects.
Prof Geraint Lewis , from University of Sydney, told The Bbc it confirms again We Live in an expanding universe.
Prof Lewis, lead author of the study published in Nature Astronomy, said: " Looking Back to a time when The Universe was just over a billion years old, we see time appearing to flow five times slower [soon after the Big Bang].
" If you were there, in this infant universe, One Second would seem like One Second - But from our position, More Than 12 billion years into The Future , that early time appears to drag. "
Quasars are bright objects powered by " supermassive" Black Holes blasting out energy as they engorge themselves on gas, dust, and other matter within their gravitational grasp, according to Nasa.
Astrophysicist Prof Lewis and astrostatistician Brendan Brewer, from the University of Auckland, looked at the colours of nearly 200 quasars over 20 years. They were then able to standardise the " ticking" of each quasar.
Explaining what it all means, the researchers said it confirms The Expectation of Albert Einstein 's general theory of relativity, which means we should observe the distant universe running much slower than The Present day.
He Said : " Thanks to Einstein, we know that time and space are intertwined and, since The Dawn of Time In The Singularity of the Big Bang, The Universe has been expanding.
" This expansion of space means that our observations of the early universe should appear to be much slower than time flows today.
" In this paper, we have established that back to about a billion years after the Big Bang. "
The university said previously astronomers confirmed the Slow Motion universe back to about half its age using Supernovae - Massive exploding stars. But quasars allowed Prof Lewis and his team to confirm the theory further to a tenth of the Age Of The Universe .
He added on BBC Radio 4 Today programme: " As Far as we understand that expansion is just going to continue and continue, and The Universe is going to get larger and emptier. "
Related TopicsSource of news: bbc.com