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NASA has detected strange signals coming from the gravitational wave source. Less than half a second after the first direct evidence of gravitational waves was recorded on 14 September 2015, a very short, faint signal was registered by NASA’s Fermi Telescope from the same region in space. High-energy light particles called gamma rays were caught emanating from a black hole merger in the area, and the discovery will not only help physicists pinpoint the exact source of the gravitational wave - if confirmed, it has huge implications for our understanding of the fundamental physics that govern our Universe.
New discovery challenges dark matter, stellar acceleration models. A team of astronomers at the Friedrich Alexander University led by Péter Németh has discovered a binary star moving nearly at the escape velocity of our galaxy. There are about two dozen so-called hypervelocity stars known to be escaping the galaxy. While all of them are single stars, PB3877 is the first wide binary star found to travel at such a high speed. Additionally, the results of the new study challenge the commonly accepted scenario that hypervelocity stars are accelerated by the supermassive black hole at the galactic center. The findings are published in the Astrophysical Journal Letters.
Stars strip away the atmosphere of super-earths. An international team of astronomers has found a new category of planets beyond our solar system whose atmosphere has been stripped bare by the radiation from their own sun. The findings will appear in the journal Nature Communications. “It is as though they are standing very close to a blow-dryer set at maximum speed and heat,” said Yale astronomy professor Sarbani Basu, a co-author of the study. “All that is loose gets blown away. In this case it is the planet’s atmosphere.”
A $1.3 billion mission to study gravitational waves in space just passed an official "sanity check". Back in February 2016, physicists set the world on fire (not literally) with the announcement of the first direct evidence of the gravitational waves that Einstein predicted more than 100 years ago. It was a massive achievement - one that you’d definitely get tattooed on your arm if you were in any way involved - but now scientists want to take things a whole lot further. They want to spend around US$1.3 billion to get a new space-based observatory into orbit by 2029, so we can detect gravitational waves a whole lot closer to the source. 
  Astrophysicists have predicted what Planet Nine would be made of. 'Pluto killing' astronomer Mike Brown announced that he and his colleagues had found evidence that a massive, icy planet could be lurking on the edge of the Solar System, just past Neptune, about 149 billion km from the Sun. No one’s ever seen it (being 75 times more distant than Pluto doesn’t help), but Brown's estimated that the hypothetical 'Planet Nine' orbits our Sun every 10,000 to 20,000 years, and is about 10 times more massive than Earth and four times the size.  
  Astronomers discover a 17 billion Solar-mass Black Hole in an unlikely place. Using the Hubble Space Telescope and the Gemini Telescope in Hawaii, a team of astronomers has uncovered one of the biggest supermassive black holes in an unlikely place: the center of a galaxy that lies in a quiet backwater of the Universe. Until now, the biggest supermassive black holes — those having more than 10 billion times the mass of our Sun — have only been found at the cores of very large galaxies in the centers of massive galaxy clusters. Now, an international team of astronomers using the NASA/ESA Hubble Space Telescope has discovered a supersized black hole with a mass of 17 billion Suns in the center of the rather isolated galaxy NGC 1600. 
Astronomers show magnetic field is critical for life. Nearly four billion years ago, life arose on Earth. Life appeared because our planet had a rocky surface, liquid water, and a blanketing atmosphere. But life thrived thanks to another necessary ingredient: the presence of a protective magnetic field. A new study of the young, Sun-like star Kappa Ceti shows that a magnetic field plays a key role in making a planet conducive to life. “To be habitable, a planet needs warmth, water, and it needs to be sheltered from a young, violent Sun,” says lead author Jose-Dias Do Nascimento of the Harvard-Smithsonian Center for Astrophysics (CfA) and University of Rio G. do Norte (UFRN), Brazil.
Ancient dust found in meteorites came from exploding stars. Microscopic dust grains extracted from meteorites that landed on Earth had ancient and explosive origins, scientists have discovered. The dust grains — also known as presolar grains, since they're older than Earth's sun — were likely spewed out by stars that blew up hundreds of millions of years before Earth's solar system formed. And in a new analysis of data collected from these tiny particles, researchers have come closer to pinpointing the type of stellar blast that produced the dust, 5 billion years ago.
Clocking the extreme spin of a monster black hole. Supermassive black holes are the most extreme objects in the known universe, with masses millions or even billions of times the mass of our sun. Now astronomers have been able to study one of these behemoths inside a strange, distant quasar and they've made an astonishing discovery — it's spinning one-third the speed of light. Studying a supermassive black hole some 3.5 billion light-years away is no easy feat, but this isn't a regular object: it's a quasar that shows quasi-periodic brightening events every 12 years or so — a fact that has helped astronomers reveal its extreme nature.
Astronomers discover the biggest object in the Universe. As if staring up at the night sky didn’t make us feel small already, astronomers have recently announced the discovery of the BOSS Great Wall, a group of superclusters that span roughly 1 billion light-years across and represents thelargest structure ever found in space. The BOSS Great Wall, which sounds aptly named for its size but actually stands for the Baryon Oscillation Spectroscopic Survey, is a string of superclusters connected by gases lying roughly 4.5 to 6.5 billion light-years away from Earth. Thanks to gravity, these superclusters stay connected and swirl together through the void of space.
NASA GSFC solar scientist Holly Gilbert explains a computer model of the sun’s magnetic field. Grasping what drives that magnetic system is crucial for understanding the nature of space throughout the solar system: The sun's invisible magnetic field is responsible for everything from the solar explosions that cause space weather on Earth – such as auroras – to the interplanetary magnetic field and radiation through which our spacecraft journeying around the solar system must travel. We can observe the shape of the magnetic fields above the sun's surface because they guide the motion of that plasma – the loops and towers of material in the corona glow brightly in EUV images.
The Star Wars franchise has featured the fictitious "Death Star," which can shoot powerful beams of radiation across space. The Universe, however, produces phenomena that often surpass what science fiction can conjure. The Pictor A galaxy is one such impressive object. This galaxy, located nearly 500 million light years from Earth, contains a supermassive black hole at its center. A huge amount of gravitational energy is released as material swirls towards the event horizon, the point of no return for infalling material. This energy produces an enormous beam, or jet, of particles traveling at nearly the speed of light into intergalactic space.
More evidence that early Earth collided head-on with another planet. Soon after the Earth coalesced in the early solar system, it was hit by another planet, Theia. The collision formed the moon, but researchers are still trying to piece together exactly what happened, including what happened to Theia. For years, researchers have thought that Theia might have smashed into Earth at an angle, strong enough to obliterate Theia into little bits and create the moon. But that might not be the case. Instead, a recent study suggests that Earth might actually be a chimera of the two planets.
Astronomers use Galaxy Clusters to reveal new Dark Matter insights. New research from NASA’s Jet Propulsion Laboratory suggests that the internal structure of a galaxy cluster is linked to the dark matter environment surrounding it. This is the first time that a property besides the mass of a cluster has been shown to be associated with surrounding dark matter. Dark matter is a mysterious cosmic phenomenon that accounts for 27 percent of all matter and energy. Though dark matter is all around us, we cannot see it or feel it. But scientists can infer the presence of dark matter by looking at how normal matter behaves around it.
Astronomers gaze deep into the heart of active Galaxy BL Lacertae. A black hole lurks at the center of the active galaxy in a distance of 900 million light years, known as “BL Lacerta.” Microwave radiation is emitted from the direct vicinity of the black hole. This radiation was the focus of a combination of several radio telescopes, including the radiotelescope Spektr-R, the Effelsberg 100-meter antenna, and another 14 ground-based radio telescopes around the globe. The researchers combined all simultaneously recorded signals from all participating radio telescopes at the special correlator facility operated at the Max Planck Institute for Radio Astronomy in Bonn.
It was one of the greatest mysteries in modern science: a series of brief but extremely bright flashes of ultra-high energy light coming from somewhere out in space. These gamma ray bursts were first spotted by spy satellites in the 1960s. It took three decades and a revolution in high-energy astronomy for scientists to figure out what they were. Far out in space, in the center of a seething cosmic maelstrom. Extreme heat. High velocities. Atoms tear, and space literally buckles. Photons fly out across the universe, energized to the limits found in nature. Billions of years later, they enter the detectors of spacecraft stationed above our atmosphere. Our ability to record them is part of a new age of high-energy astronomy, and a new age of insights into nature at its most extreme. What can we learn by witnessing the violent birth of a black hole?
   

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