Black Hole

A-bomb architect “was no Einstein,” historian says, but he did Nobel-level work on black holes...Read More

The brightest outpourings of energy in the universe are gamma ray bursts. They are typically born as stars or other objects collapse into black holes and send out blasts of high-energy photons billions of light years across the universe. Most commonly, the collapsing objects are massive stars that have burned…

403 You do not have permission to access this document. That's what you can do Read More

Imagine a future in which humans have built advanced spacecraft, capable of traveling at a significant percentage of the speed of light. Scientists have also become aware of a large black hole in our galactic neighborhood — now well within our reach. When a team of researchers assemble to travel…

403 You do not have permission to access this document. That's what you can do Read More

Approximately 200 years ago, according to an international team of researchers, Sagittarius A* (Sgr A*)1, the supermassive black hole at the center of the Milky Way, emerged out of a protracted period of dormancy. The team, led by CNRS researcher Frédéric Marin at the Astronomical Strasbourg Observatory (CNRS/University of Strasbourg),…

Physicists knew black holes eventually disappear particle by particle. Now they think everything else does, too Credit: kyoshino/Getty Images Stars, planets, people and petunias: everything emits a special kind of radiation and will, if it sticks around long enough, evaporate into nothing. That’s the claim in a new study of…

Space The stars that orbit close to the Milky Way's supermassive black hole are already tough to explain – but there also seems to be some stars missing By Leah Crane There seem to be some stars missing near the centre of the Milky Way Shutterstock/structuresxx There is a strange…

The supermassive black hole at the center of our Milky Way galaxy woke up and unleashed a fierce outburst of X-rays around the turn of the 19th century, according to new observations of the 'echoes' of the event. Astronomers have noticed that immense clouds of star-forming molecular gas that inhabit…

Home News Science & Astronomy (Image credit: ESA/Hubble & NASA and N. Grogin (STScI), Acknowledgement: Judy Schmidt) Supermassive black holes at the centers of galaxies in cosmic deserts of the universe, where neighbors are rare and stellar nourishment is scarce, still manage to munch on material more often than their…