Supermassive black holes are titanic oddities. Usually sited at the core of galaxies and various high-energy phenomena such as quasars, their mass can be anywhere from that of a hundred thousand to billions of suns. Now observations from NASA and ESA space telescopes are shedding light on the incredibly powerful cosmic winds they produce, which can have more energy than an entire galaxy. Read More
Astronomers have used NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) to detect the brightest-ever recorded pulsar. The distant object was happened upon by the team while observing a recent supernova in the region. In the long run, the discovery may improve our understanding of how black holes grow. Read More
NASA's Nuclear Spectroscopic Telescope Array (NuSTAR) is unraveling the mystery of how stars go supernova by mapping the remnants of radioactive material left in the wake of a supernova. The findings go against previous theories to create a more chaotic view of the conditions prevailing directly before a star explodes. Read More
The rotation of a supermassive black hole (SBH) has been definitively measured for the first time by combining x-ray data obtained by the x-ray space telescopes XMM-Newton (soft x-rays) and NuSTAR (hard x-rays). The SBH at the center of a galaxy called NGC 1365 was found to be spinning at 84 percent of the maximum speed allowed by general relativity – or roughly speaking, the edge of the black hole is rotating at 84 percent of the speed of light. Read More
Black holes, which abound in the Universe, convert matter into geometry – the larger the amount of matter that disappears through the event horizon, the larger they grow, with the only external sign of their presence being the warping of space due to their gravity. In the process, a great deal of extremely hot gas is generated, and that gas emits hard x-rays. Now NASA's NuSTAR space telescope can find black holes by forming high-resolution images of the cosmos in hard x-rays. Read More