It might just be possible to see a light flash too when black holes merge

Artist's concept of a supermassive black hole and its surrounding disk of gas. Embedded within this disk are two smaller black holes orbiting one another.
Artist's concept of a supermassive black hole and its surrounding disk of gas. Embedded within this disk are two smaller black holes orbiting one another. Image credit: Caltech/R. Hurt (IPAC)

Black hole merger events are some of the most energetic, fearsomely energetic events in all the cosmos. When black holes merge, they’re entirely invisible, the only evidence of the cataclysm some faint whisper of gravitational waves. Until now.

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A brand new magnetar found, it’s only 240 years old

A massive flare ejected from a magnetar.

Magnetars are some of the most ridiculous objects in the universe. Composed of the densest material possible spinning faster than your kitchen blender, they generate the absolute most powerful magnetic fields the cosmos has ever seen – and astronomers have recently spotted a newborn.

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There’s no evidence that dark matter interacts with any other force but gravity

HD+ molecular ions (yellow and red pairs of dots: proton and deuteron) suspended in an ultra-high vacuum between atomic ions (blue dots). Credit: HHU / Alighanbari, Hansen, Schiller
HD+ molecular ions (yellow and red pairs of dots: proton and deuteron) suspended in an ultra-high vacuum between atomic ions (blue dots). Credit: HHU / Alighanbari, Hansen, Schiller

Most of the universe is made of one of two kinds of mysterious substances, called dark matter and dark energy. From all the evidence, these two cosmic components only interact with “normal” matter through the gravitational force. And a recent nuclear experiment reveals no presence of any dark contamination in the bonds between atomic nuclei to a level twenty times better than previously recorded.

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Antares is a supergiant star that would fill the Solar System beyond Mars, but its atmosphere is 12 times bigger than that

This artist’s impression shows the red supergiant star. Using ESO’s Very Large Telescope Interferometer, an international team of astronomers have constructed the most detailed image ever of this, or any star other than the Sun. Credit: ESO/M. Kornmesser

Antares, the angry red eye of the constellation Taurus the bull, is a red supergiant star near the end of its life. And astronomers with the VLA and ALMA have realized that it’s much, much bigger than we ever imagined.

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Spacecraft was able to measure how long neutrons last before they decay

Artist's concept of the MESSENGER spacecraft on approach to Mercury. Credit: NASA/JPL

Using NASA’s MESSENGER spacecraft’s close encounters with Venus and Mercury, researchers were able to measure the lifetime of neutrons, an important prediction of the Standard Model of particle physics.

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Scientists are much better at predicting when the Sun is going to become more active

A massive prominence erupts from the surface of the sun. Credit: NASA Goddard Space Flight Center

The sun constantly cycles between periods of activity and periods of inactivity, and a new technique allows scientists to better predict when things will start getting interesting.

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There are powerful magnetic fields at the core of the Milky Way, driven by the supermassive black hole

NASA's Spitzer Space Telescope captured this stunning infrared image of the center of the Milky Way Galaxy, where the black hole Sagitarrius A resides. Credit: NASA/JPL-Caltech

The center of the Milky Way is home to a giant black hole, but new research suggests that it isn’t the only big player in the downtown core of our galaxy – massive magnetic fields also shape and drive the flows of gas there.

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The Milky Way is surrounded by a huge hot halo of gas

Artist's impression of the Milky Way Galaxy. Credit: ESO

Our Milky Way galaxy isn’t just a disk of stars and nebulae – it’s surrounded by a cloud of hot, thin plasma. And recently, researchers at The Ohio State University confirmed that the plasma surrounding our galaxy is much, much hotter than we previously thought.

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China will begin constructing its space station in 2021

An artist's impression of the future Chinese space station. Image credit: NASA

The Chinese space agency is building a brand new space station, and they’re going about it in a suitably impressive way: an ambitious schedule of 11 planned launches crammed into only two years. When it’s done, the 66-ton space station will host crews of three astronauts for up to six months at a time, lasting for a planned 10 years before de-orbiting.

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The dinosaur killing asteroid hit the Earth at the most devastating possible angle

Impactors strike during the reign of the dinosaurs (image credit: MasPix/devianart)

There are bad days, and then there are really bad days. 65 million years ago, life on Earth – especially if you were a dinosaur – experienced the worst possible bad day, as a giant meteor came crashing down to the surface of our planet, unleashing an inferno followed by decades of nuclear winter. And the worst part? It didn’t have to be so bad.

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