Sagittarius A*, abbreviated as Sgr A*, is the supermassive black hole at the Galactic Center of the Milky Way. Viewed from Earth, it is located near the border of the constellations Sagittarius and Sc
Sagittarius A* imaged by the Event Horizon Telescope in 2017, released in 2022
Dusty cloud G2 passes the supermassive black hole at the center of the Milky Way. Composition of images taken at different times to show motion; colored blue when approaching the viewer, red when receding; time is left to right. Red cross marks the black hole.
An unusually bright X-ray flare from Sgr A* was detected in 2013.
Supernova remnant ejecta producing planet-forming material seen in radio and X-ray
Messier 87 is a supergiant elliptical galaxy in the constellation Virgo that contains several trillion stars. One of the largest and most massive galaxies in the local universe, it has a large populat
Sagittarius A*
…Sagittarius A*, using the Event Horizon Telescope, a world-wide network of radio observatories. This is the second confirmed image of a black hole, after Messier 87's supermassive black hole in 2019. The black hole itself is not seen; as light is incapable of escaping the immense gravitational force of a black hole, only nearby objects whose…
Messier 87, with the blue plasma jet of its galactic core clearly visible (composite image of observations by the Hubble Space Telescope in visible and infrared light)
In Hubble's galaxy classification scheme, M87 is an E0 galaxy.
The Event Horizon Telescope image of the core of M87 using 1.3 mm microwaves. The central dark spot is the shadow of M87* and is larger than the black hole's event horizon.
A view of the jet and shadow of M87's black hole. Observations from the Global Millimetre VLBI Array (GMVA), the Atacama Large Millimeter/submillimeter Array (ALMA), and the Greenland Telescope.