A asteroid arrives at the nearest point on earth that was recorded at all and did not He is seen only too late
A asteroid arrives at the nearest point on earth that was recorded at all and did not He is seen only too late
A “car-size” asteroid passed near the ground at the nearest point ever recorded, undetected from our planetary defense systems until it was already in transit.
Over 2020QG our planet is less than 3,000 km away, which means it is close to most commercial Earth-orbiting satellites.
This close approach significantly indicates that the space rock jumps directly to the top of the asteroid threat events. This is even though the database extends over 100 years.
Astronomers discovered the asteroid in Palomar Observatory in California, six hours after it flew near Earth. Observations indicate that the space rock approached our planet when it flew over the southern hemisphere after 4 a.m. UTC on Sunday.
Experts say 2020QG did not pose a major threat to Earth, because it would have been almost entirely burned in the atmosphere, if it were on a collision course with our planet.
However, it again highlights the importance of asteroid detection systems and, in the event of more serious threats in the future course of the Earth, our planetary defenses need to be strengthened.
A striking example is Nesak Chileapensk, who was not discovered, and exploded over Russia in February 2013. The guilty was only 18 meters in diameter, but was considered large enough to cause major local damage, including the bombing of thousands of windows.
Another example appeared in December 2018 when an undiscovered asteroid crashed, ten times stronger than the bombs dropped on Hiroshima and Nagasaki over the Bering Sea.
A small, "surprisingly" active black hole, 15,000 light years away, illuminates an adjacent gas cloud at a specific common pace, in a strange but fascinating phenomenon.
The black hole system in question is called SS 433 and Microquasar is: A black hole of between 10 and 20 solar masses, while a twin star with a fin is 30 times larger than the mass of a sun.
The couple rotate around each other about 100 light years every 13 days, with the pulses of the gas cloud in time at the base rhythm of the black hole.
The exact cause of this pulse is unknown, but it is unlikely that plasma jets will be emitted from the black hole, and instead may be a form of shining light thanks to cosmic rays, which are high-energy protons that travel at approximately the speed of light, since the black hole swings on rotational rotations such as the rotating top. Cosmic behavior is indeed somewhat remarkable.
The astronomical physicist, Jian Lee, of the Deutsches Elektronen-Synchronon in Germany, said that finding such a clear link through timing, about 100 light years away from the small quazar, was as unexpected as it was striking.
Li and his team SS 433 watched for ten years, and found that the flow of plasma from the black hole is almost lost every 162 days, and its shape changes from spiral to cone, where the gas cloud is pulsing in rhythm.
This behavior challenges and can completely turn over theoretical models around these microstars. "SS 433 continues to impress observers on all frequencies and theorists alike, and it will certainly test our ideas for cosmic radiation production and deployment near micro-stars for years to come," researchers wrote.
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