Astronomers at California Institute of Technology have discovered the longest pair of black hole jets ever found - in a galaxy seven-and-a-half billion light years away. Ghost arrests: how police infiltrated messaging app. Aggressive prostate cancer: new treatment techniques research.

Also in this episode:

Test flight success for $125K space balloon tour
Hidden ‘structures’ revealed beneath Mars
Quarter of young Londoners unvaccinated for measles
Zoom fatigue? Worst video-call backgrounds revealed

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Record-breaking black hole jets found in faraway galaxy