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Space And Astronomy
Astronaut Stephen K. Robinson on ISS Canadaarm2 3 August 2005, Astronaut Stephen K. Robinson, STS-114 mission specialist, anchored to a foot restraint on the International Space Station’s Canadarm2, participates in the mission’s third session of extravehicular activity (EVA). The blackness of space and Earth’s horizon form the backdrop for the image.Spacewalks – Blue Sky: credit: NASA
4,500 light years away, IRAS 20324+4057, on the inside, is contracting to form a new star. On the outside, energetic winds are blowing and light is eroding away much of the gas/dust that might have been used to form the star. So, no one is sure of its fate. If the winds and light to whittle it down to near the mass of the Sun, the outer atmosphere of this new star may expand into a nebula. Or, if the stellar cocoon will retain enough mass, that it will one day explode - supernova. (NASA)
A team of astronomers using the Hubble Space Telescope found an unambiguous link between the presence of supermassive black holes that power high-speed, radio-signal-emitting jets and the merger history of their host galaxies. Almost all galaxies with the jets were found to be merging with another galaxy, or to have done so recently
Jets of relativistic plasma created by the Supermassive Black Hole at the center of 3C 348; a galaxy in the Hercules Cluster 1000 times more massive than the Milky Way. The jets are focused beams of particles accelerated to more than half of light speed by the magnetic fields around the Black Hole. The jets extend more than a million light years into intergalactic space. This image is a combination of visible light observations by the Hubble Space Telescope and radio observations by the VLA ...
This material is being ejected from Supernova 1987, a star that exploded in the nearby Large Magellanic Cloud. Astronomers have been able to capture a three-dimensional view of the distribution of the innermost material expelled by a supernova, using a new instrument at the Very Large Telescope, said the European Southern Observatory.