It was the first object discovered in the solar system that appears to have originated from another part of the galaxy.
She said: “The fact that it does not have the typical comet’s hair does not mean anything because if it passed near a star it could have run out of the ice that covered it and that’s the reason for the comet’s bright hair.
Travelling at up to 196,000 mph, the object travelled at high speed
“It was expected to be an object similar to a comet, but when Oumuamua arrived in the Solar System, researchers realised that it did not emit dust or ice and therefore it was not a comet, but an asteroid”.
Although thought to be an asteroid, Oumuamua’s elongated cigar shape hundreds of metres in length but only one tenth as wide is highly unusual for a typical space rock.Travelling at up to 196,000 mph, the object’s high speed also suggests that it is not gravitationally bound to the sun but is destined to head back out of the solar system.
However, its arrival could provide experts with new and valuable information on how planets, asteroids and comets are born. Meanwhile, the mysterious object was also studied by the Seti project Breakthrough Listen, last year.
On Sept. 20, 2016, Victor Buso, an amateur astronomer in Rosario, Argentina, was checking out the new camera on his telescope by taking pictures of a nearby spiral galaxy when a star within it went off in a supernova explosion.
Within hours, and prompted by Mr. Buso’s good fortune, professional astronomers around the world trained their big telescopes on the galaxy, known as NGC 613, about 80 million light-years from here in the constellation Sculptor. It was a rare instance in which astronomers were able to see the beginning of a supernova, when one of the most massive stars in the universe ends its life in one of the most violent events nature can cook up.
Most supernovas are far away and don’t call attention to themselves until their funeral pyre explosions are well underway. In this case, astronomers were able to record what they call the “breakout,” when a shock wave radiating from a star’s core, which has probably collapsed into a black hole, reaches the surface of the poor star and brightens it catastrophically.
“It’s like winning the cosmic lottery,” said Alex Filippenko, in a news release from the Keck Observatory in Hawaii, where Dr. Filippenko, of the University of California, Berkeley, has been tracking the supernova.
The astronomers, who reported their findings on Wednesday in Nature, said the original star had probably been about 20 times as massive as the sun, but had blown most of that mass off into space before the decisive explosion began.
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JAKARTA, NNC – NASA is tracking a large asteroid that will pass through Earth at 10.9 Lunar Distance on February 4, 2018.
- The asteroid, named 2002 AJ129 has an estimated diameter of 760.
- The asteroid will travel at 76,000 mph (122,541 km/h), which makes it nearly 15 times faster than the world’s fastest manned aircraft, the hypersonic North American X-15.
- Despite having a ‘dangerous’ classification, NASA says there is no possibility of colliding with Earth next week.
- The asteroid is about 1.1 miles (1.1 km) wide and makes it longer than Burj Khalifa in Dubai, which stands at a height of 0.5 miles (0.8 km).
- The asteroid is set to pass through our planet at a distance of about 2,615,128 miles (4,208,641km) that is relatively close in space. As a reference, the distance between Earth and the moon is 238,855 miles (384,400 km).
- NASA described asteroids as ‘dangerous’ if they are within 4,600,000 miles (7,480.00km) of our planet.
“We have been tracking this asteroid for more than 14 years, and we know its orbit very accurately.Our calculations show that the 2002 AJ129 asteroid has no chance of colliding with Earth on February 4, or within the next 100 years,” says Paul Chodas, manager of the NASA Center for Studies at the Jet Propulsion Laboratory in Pasadena, California, as quoted by Daily Mail, Sunday (28/1/2018).
This asteroid was discovered on January 15, 2002 by the NEAT (Near-Earth Asteroid Tracking) project. This is the largest space rock that can sweep our planet.
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