Tagged With black holes

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Black holes are the strong, silent type — an age-old enigma. Hubble estimates that there are roughly 100 million black holes in our galaxy alone, but because their gravitational pull is so intense, light can't escape. So even with the most advanced equipment, "stray" black holes wandering in space are nearly impossible to find.

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Sometimes, the best telescopes on Earth need a little help making their observations more meaningful. NASA announced yesterday that it had decided to fund the Imaging X-ray Polarimetry Explorer (IXPE, pronounced ix-pee) mission, a polarised X-ray telescope, to help the bigger telescopes explore some of space's strangest phenomena — including the dead remains of exploded stars and galactic lighthouses called pulsars.