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High-energy cosmic ray sources are being mapped for the first time Ikaro Stars In 2008, Farrar and an author proposed that cataclysms called tidal events (TDEs) can be a source of very high-energy cosmic rays. A TDE occurs when a star pulls a Fear and gets too close to a supermassive black hole. The star’s front feels much more severe than its back, as the star shrinks and turns into an abyss. The vortex lasts about a year. As it lasts, two jets of material — subatomic fragments of a broken star — are thrown in opposite directions through a black hole. Shock waves and magnetic fields fr...

To revist this article, visit My Profile, then View saved stories. In the 1930s, the French physicist Pierre Auger placed Geiger counters along a ridge in the Alps and observed that they would sometimes spontaneously click at the same time, even when they were up to 300 meters apart. He knew that the coincident clicks came from cosmic rays, charged particles from space that bang into air molecules in the sky, triggering particle showers that rain down to the ground. But Auger realized that for cosmic rays to trigger the kind of enormous showers he was seeing, they must carry fantastical amoun...

When you take a heterogeneous collection of telescopes and build them into one giant telescope it presents a lot of technical challenges and so in the years leading up to our twenty seventeen experiment we went telescope by telescope all over the world installing the specialized hardware we needed to do this most of the telescopes had detectors that we could use but almost none of them had the atomic clocks we need and certainly none of them had the very fast data recorders that we use some places we had to do even more a good example of this is the only telescope in chile it's a sixty six tel...

prime minister benjamin netanyahu. things getting uglier in syria. eight people died today at the hands of their own government that. is according to opposition activists. a victim of sniper fire? >> you can see the devastation across the midwest. the relentless storm system impacting multiple states and 39 deaths. we are one day away from super tuesday. the race for the republican nomination and it's a make or break day for who? newt gingrich. he's campaigning in tennessee at this hour. gingrich is counting on a win to keep this campaign going. meanwhile, mitt romney is riding h...

In berkeley, don sanchez, abc news. >> that is incredible. >> tip your hat to that one. >> i know. although sometimes those mental health days are really important. >> i call in sick when i have a hang nail. >> yeah, we've noticed rob, gees. if extraterrestrials would ever like to phone home, they may be told that that number has been disconnected. the 42 radio editions that scan the skies for signs of intelligent life have been shut down. the alien telescope array has been a victim of the economic slowdown. >> government funding has been cut sharply and the institute that runs the listening...