Scientists have seen hypervelocity stars before, but this is the first time they've ever observed an entire star cluster thrown from its host galaxy. Named HVGC-1, it's traveling at a rate of 2 million miles per hour — and its ultimate fate is to drift through the cosmic void for all time.
The supermassive black hole at the heart of the neighboring galaxy M87 has the mass of 6.6 billion suns. It's the biggest black hole to be precisely measured, and it's us our best shot at really seeing these strange objects.
The gigantic black hole at the center of the huge M87 galaxy is doing its best impression of an Icelandic volcano, ejecting waves of particles that are disrupting star-creating gas just like bursts of volcanic gas can affect atmospheric ash.