Chandra X-Ray Observatory
Black hole M87 is ejecting massive jets of high-energy particles thousands of light years into space
Data from NuSTAR and Chandra observatories was used to measure the X-ray brightness of M87's jet
Collision of planets could have caused dimming of star 450 light years away, MIT claims
Planetary collision might shed light on the chaotic processes behind a star's early development
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