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‘Potentially Hazardous’ Asteroid Will Pass Close to Earth
A “potentially dangerous” asteroid about 12 meters wide will pass close to planet Earth during the early hours of Thursday. According to NASA, the asteroid, named 418135 (2008 AG33), has an estimated diameter of between 350 and 780 meters, and will enter Earth’s orbit at 37,400 km/h, and can be
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You remember the fearsome Death Star from “Star Wars”, right? In the fiction series, she is a powerful warlike space station in the service of the Galactic Empire, with 140 kilometers in diameter, capable of transporting thousands of stormtroopers and a super laser that comes out of a crater that
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Astronomers discover micronova, a new kind of stellar explosion
A team of astronomers, with the help of the European Southern Observatory’s Very Large Telescope (ESO’s VLT), have observed a new type of stellar explosion — a micronova. These outbursts happen on the surface of certain stars, and can each burn through around 3.5 billion Great Pyramids of Giza of
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New simulations refine axion mass, refocusing dark matter search
Axions are today’s most popular candidate for dark matter, and numerous experiments are trying to detect them in microwave cavities where the axion should rarely convert into an electromagnetic wave. But a new simulation of the production of axions in the early universe provides a more refined mass estimate, and
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Nova outbursts are apparently a source for cosmic rays
The MAGIC telescopes have observed the nova RS Ophiuchi shining brightly in gamma rays at extremely high energy. The Gamma rays emanate from protons that are accelerated to very high energies in the shock front following the explosion. This suggests that novae are also a source of the ubiquitous cosmic
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Neptune has been cooling down for nearly 20 years – when it should be doing the opposite
The most distant planet in our solar system entered its summer season two decades ago – but contrary to expectations it is cooling down. And the most surprising thing is that it is cooling down quite quickly. Our knowledge of the most distant planet in our solar system is still
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Eris, Pluto, and the dwarf planets
In January 2005, a team of astronomers at Palomar Observatory led by Mike Brown from Caltech looked at three images of the same star field taken over three hours. All the stars remained in their expected positions. However, one tiny point of light moved almost imperceptibly. Further calculation indicated that
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US military confirms that an interstellar meteor crashed into Earth
It is now confirmed what two researchers have been trying to prove for three years: that in 2014 a meteor traveled a long way from home to visit Earth. A group of investigators has discovered the first known case of an interstellar meteor hitting Earth, confirms a recently released US
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Mathematical discovery could shed light on secrets of the Universe
How can Einstein’s theory of gravity be unified with quantum mechanics? It is a challenge that could give us deep insights into phenomena such as black holes and the birth of the universe. Now, a new article in Nature Communications, written by researchers from Chalmers University of Technology, Sweden, and MIT, USA,
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Hubble sheds light on origins of supermassive black holes
Hubble sheds light on origins of supermassive black holes. Astronomers have identified a rapidly growing black hole in the early universe that is considered a crucial. Astronomers have identified a rapidly growing black hole in the early universe that is considered a crucial “missing link” between young star-forming galaxies and the
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