Supermassive black holes
The first-ever photo of a black hole, taken using a global network of telescopes conducted by the Event Horizon Telescope (EHT) project, to gain insight into celestial objects with gravitational fields so strong no matter or light can escape, is...more
The collision of two black holes - a tremendously powerful event detected for the first time ever by the Laser Interferometer Gravitational-Wave Observatory, or LIGO - is seen in this still image from a computer simulation released in Washington...more
Giant plumes of radiation seen in X-rays from Chandra (purple) and radio data from the Very Large Array (orange) from radio galaxy 3C353, a wide, double-lobed active galaxy that is very luminous at radio wavelengths, where the galaxy is the tiny...more
A ring of stars circling Sagittarius A*, the Milky Way's central black hole, shows a combination of infrared and X-ray observations indicating that a surplus of massive stars has formed from a large disk of gas around the black hole. Dozens of...more
A composite image shows the jet from a black hole at the center of a galaxy striking the edge of another galaxy, the first time such an interaction has been found. In the image, data from several wavelengths have been combined. X-rays from Chandra...more
NASA's Chandra X-ray Observatory image of an extraordinary outburst by a black hole in the spiral galaxy M83, located about 15 million light years from Earth, is shown in this handout released July 13, 2012. NASA/CXC/Curtin University/R.Soria et...more
A composite image of a galaxy illustrating how the intense gravity of a supermassive black hole can be tapped to generate immense power released by NASA May 15, 2013. The image contains X-ray data from NASA's Chandra X-ray Observatory (blue), optical...more
The galaxy cluster PKS 0745-19 is shown in this NASA composite image containing X-rays from Chandra (purple) and optical date from the Hubble Telescope (yellow) released December 19, 2012. The black hole at the center of this galaxy is part of a 2012...more
One of the lowest mass supermassive black holes ever observed in the middle of a galaxy located in the middle of the spiral galaxy NGC 4178, is shown in this image from the Sloan Digital Sky Survey released on October 25, 2012. NGC 4178 is a spiral...more
This 400 by 900 light-year mosaic, released January 9, 2002, of several Chandra observatory images of the central region of our Milky Way galaxy reveals hundreds of white dwarf stars, neutron stars, and black holes bathed in an incandescent fog of...more
Israeli Prime Minister Benjamin Netanyahu secures a clear path to re-election, with religious-rightist parties set to hand him a parliamentary majority.
Border patrol agents apprehend migrants caught illegally crossing from Mexico into the United States.
Twins are common in the Yoruba ethnic group that dominates southwest Nigeria, especially in Igbo Ora, where a banner welcomes visitors to the "twins capital of...
Cubans journey to the U.S.-Mexico border in search of asylum in America, motivated by news of past migrant caravans.