Heavy Black Hole Jets in 4U1630-47. What are black hole jets made of? Many black holes in stellar systems are surely surrounded by disks of gas and plasma gravitationally pulled from a close binary star companion. Some of this material, after approaching the black hole, ends up being expelled from the star system in powerful jets emanating from the poles of the spinning black hole.
One theory of a newly discovered type of black-hole quasar suggests gas flows into a central black hole. More frequent particle collisions close to the black hole make the gas hot in regions that are closer to the center (shown in blue and white). Regions further away are cooler (yellow and orange).
This false-color mosaic, made from infrared data collected by NASA's Cassini spacecraft, reveals the differences in the composition of surface materials around hydrocarbon lakes at Titan, Saturn's largest moon. Image released Oct. 23, 2013.
Terry Hancock of Fremont, Michigan and former NASA scientist Fred Herrmann of Huntsville, Ala., sent this photo of the Lagoon Nebula, also know as Messier 8, to SPACE.com on Sept. 12, 2013. Messier 8 is located in the heart of the Milky Way galaxy in the constellation Sagittarius (the Archer).
This image shows the view from NASA's Mars rover Curiosity after it uses an autonomous proximity placement technique to place its tool-laden robotic arm on a rock science target called 'Darwin' during the 399th Martian day, or sol, of its mission. Image released Sept. 23, 2013.