Idan Ginsburg

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VFTS 243 is a binary system of a large, hot blue star and a black hole orbiting each other, as seen in this animation. ESO/L.Calçada

Astronomers have found an especially sneaky black hole – discovery sheds light on star death, black hole formation and gravitational waves

Idan Ginsburg, Georgia State University

Astronomers have discovered the first dormant black hole outside of the Milky Way. These black holes are not absorbing matter from a nearby star, making them incredibly hard to find.
Some stars travel at high speeds through the universe and sometimes leave spectacular clouds of dust and gas in their wake. NASA, ESA and R. Sahai (NASA's Jet Propulsion Laboratory)

Real shooting stars exist, but they aren’t the streaks you see in a clear night sky

Idan Ginsburg, Georgia State University

Hypervelocity stars were discovered only 15 years ago and are the closest things in existence to real shooting stars. They travel at millions of miles per hour, so fast that they can escape from galaxies.

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