Astronomers with a telescope in the Lone Star state have calculated what they believe is the most huge black hole yet recorded, The University of Texas at Austin (UT). The black crack, which lies at the middle of the galaxy NGC 1277, located some 220 million light-years from Earth, is so big it is tricky to comprehend: It is 17 billion solar masses, or 17 billion period the mass of our Sun, and makes up 14% of its comparatively small host galaxy’s entire mass.
Showing posts with label galaxy. Show all posts
Showing posts with label galaxy. Show all posts
Lasers From Keck telescopes Discover Quirky Star Close To Middle Of Milky Method
The powerful Lasers from the twin Keck telescopes of the Keck Observatory on Mauna Kea point to the center of the Milky Way galaxy, where scientists have establish a second star orbiting a super massive black hole. Now a day’s Scientists using the Keck Observatory atop Mauna Kea have originate a second star in a surprisingly fast orbit around the black hole at the middle of the Milky Way galaxy.
The discovery, published world today in the great journal
Science, may help astronomers determine if Einstein was right in his
fundamental calculation of how black holes warp space and time, said UCLA
physicist Andrea Ghez, organizer of the discovery group.
The shining star, known as S0-102, orbits the black hole in
11.5 years, a virtual sprint that allows astronomers to study an entire orbit
for perturbations that offer clues to the black hole’s structure. Let’s before
this finding, astronomers knew of only 1 star near the black hole with a very
short orbit: S0-2, which completes a circuit (CKT) in 16 years. Both are in the
assemblage Sagittarius.
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NASA's Kepler Mission Discovers a World Orbiting Two Stars
The existence of a world with a double sunset, as portrayed in the film Star Wars more than 30 years ago, is now scientific fact. NASA's Kepler mission has made the first unambiguous detection of a circumbinary planet -- a planet orbiting two stars -- 200 light-years from Earth.
Unlike Star Wars’ Tatooine, the planet is cold, gaseous and not thought to harbor life, but its discovery demonstrates the diversity of planets in our galaxy. Previous research has hinted at the existence of circumbinary planets, but clear confirmation proved elusive. Kepler detected such a planet, known as Kepler-16b, by observing transits, where the brightness of a parent star dims from the planet crossing in front of it.
"This discovery confirms a new class of planetary systems that could harbor life," Kepler principal investigator William Borucki said. "Given that most stars in our galaxy are part of a binary system, this means the opportunities for life are much broader than if planets form only around single stars. This milestone discovery confirms a theory that scientists have had for decades but could not prove until now."
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