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Nights are slowly shortening, but even as summer begins to wind down, the Summer Triangle still flies high in the sky overnight. Formed by three bright stars, this large asterism is highest around ...

In his 1948 book, The Stars in Our Heaven, Peter Lum wrote: “The Swan of Heaven is a long-necked bird in full flight down the Milky Way. He is … by far the most magnificent of the feathered creatures ...

I have managed to pull a muscle in my shoulder, so writing is really hard today. Until I can make my left arm move normally, I will simply leave you with this incredible image of Gamma Cygni, a bright ...

Over the past week, ESA's Integral satellite has been observing an exceptional outburst of high-energy light produced by a black hole that is devouring material from its stellar companion. X-rays and ...

Bright red veins lace the sky and feed into enormous crimson clouds that look like living hearts, in this breathtaking view of the Gamma Cygni nebula and its surrounding region as seen by veteran ...

A NASA satellite controlled by Penn State University has detected a brief, super-bright, high-energy flare — an X-ray nova — erupting from a star system 8,000 light-years away from Earth named V404 ...

Scientists observing V404 Cygni discovered that even amateur telescopes are capable of capturing violent outburst from black holes closest to Earth Astronomers have discovered that black holes can be ...

Observations by NASA's Fermi Gamma-ray Space Telescope of several stellar eruptions, called novae, firmly establish these relatively common outbursts almost always produce gamma rays, the most ...

What you’re seeing is V404 Cygni, a binary system consisting of a star and a black hole, some 7800 light-years away. It has lain quiet for the last 25 years, but a week ago, NASA’s Swift satellite ...

Stellar systems like V407 Cygni were not known to emit very high energy radiation, therefore with the observations in 2010, Fermi identified the first member of a new class of gamma objects. The ...