A team mapping radio waves in the Universe has discovered something unusual that releases a giant burst of energy three times an hour, and it’s unlike anything astronomers have seen before. The team who discovered it think it could be a neutron star or a white dwarf—collapsed cores of stars—with an ultra-powerful magnetic field.
Astronomers have observed the nearest active supermassive black hole to Earth at radio wavelengths in unprecedented detail. The emission is powered by a central black hole in the galaxy Centaurus A, about 12 million light years away.
Astronomers have discovered a pulsar—a dense and rapidly spinning neutron star sending radio waves into the cosmos—using a low-frequency radio telescope in outback Australia.