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The Terrifying Reason This Star Flickers Every Two Minutes

Some 380 light years away in the constellation Scorpius lies a star that has puzzled astronomers for over 40 years. Called AR Scorpii, the star flashes brightly and fades again every couple minutes, like a lightbulb on a dimmer switch. Now, astronomers have identified the cause of the flickering, and it’s a reminder that the cosmos is still rife with terrifying secrets.


These Deep Trenches On Mars Aren't What We Thought They Were

The surface of Mars is lined with mysterious deep-carved trenches. A long-standing theory suggesting that the were left long ago by flowing rivers was just debunked. So where did these trenches come from?


Watch SpaceX Fire A Recovered Falcon 9 Booster

In a critical step toward actually re-using reusable rockets, on Thursday at its McGregor test centre SpaceX fired up a Falcon 9 first stage that returned from space just two months ago. And it seemed to perform beautifully.


Space Threw Something At California Last Night

Around 9:30PM last night, residents of Northern California began reporting bright lights in the sky that could be seen as far away as Las Vegas.


The Year's Best Astronomy Photos Will Take You To Another Dimension

Image Cache: The Royal Observatory in Greenwich has announced its shortlist for the Insight Astronomy Photographer of the Year competition. From nebulas and auroras through to starbursts and solar eclipses, these photographs will rekindle your sense of wonder.


Apollo Astronauts Are Five Times More Likely To Die Of Heart Problems

Jim Irwin, Apollo 15. Donn Eisele, Apollo 7. Ronald Evans, Apollo 17. Wally Schirra, Apollo 7. Neil Armstrong, Apollo 11. These are all Apollo astronauts who died of heart attacks or related complications. All told, 43 per cent of deceased astronauts from the Apollo missions died from cardiovascular problems, according to a new study published today in Nature‘s Scientific Reports.


The World's Fastest Rocket Just Launched A Secret Spy Satellite

A secret satellite was launched into space today. We don’t know just what it’s doing in space. But! We can see in these pictures exactly how it got there: aAboard an incredibly fast rocket.


Mission Hopes To Find The 'Goldilocks Zone' In Our Closest Galactic Neighbour

Exoplanets are all the rage nowadays thanks in part to Kepler’s discovery of around 1284 previously undiscovered planets and our never-ending fascination with the “final frontier” that just seems to be moving closer to a reality. But out of the thousands of planets that we know of, how many are set to support life?


Researchers Just Solved One Of The Big Paradoxes About Jupiter's Atmosphere

There’s a mystery above Jupiter. The planet is five times farther from the sun than Earth is — and yet has similar atmospheric temperatures to our own. So where’s all that extra heat coming from? It turns out, Jupiter may have a second heat source in its Big Red Spot.


Something Is Erasing The Craters On Ceres

Ceres, the tiny asteroid belt world we’ve come to know and love through NASA’s Dawn mission, seems to delight in mysteries, from flickering bright spots to unexpected ocean minerals. Now, astronomers have discovered yet another puzzle while examining images of Ceres’ surface. Something has been erasing its craters.


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