
The Orbiter Discovery docked with the ISS this morning. STS-120 was stowing more than just the Harmony node. The prop used as Luke Skywalker's lightsaber, in the original Star Wars movies also flew aboard this mission. It's supposed to remain safe, sound and unopened in cargo and given back to George Lucas after returning to Earth. Comemorates the 30 anniversary of Star Wars. I can only recall a few things about my younger childhood. I do remember seeing Star Wars in 1977, at the impressionable age of 6, then seeing the sequels repeated as they were released over the next 6 years. The first movies I bought, way back when BetaMax was in fashion and tapes cost like $40 a pop, was the Star Wars trilogy. I suppose that and a healthy obsession with Star Trek (then and now) is what honed me to be fascinated with outer space.
A press release this week mentions that astronomers using the Chandra X-ray space telescope have found a very heavy black hole in Messier object 33. The black hole is part of a binary system which also includes a gigantic star. The two are orbiting around each other at a very high velocity. The system as been titled M33 X-7. The importance if this is that scientists need to re-evalute models of black holes. Why would one massive star so close in proximity to another massive star collapse before the other? The star of this binary system is huge, about 70 times larger than our Sun, so the star that created the black hole must have been massively huge. The parent star's radius must have been larger than the distance between the two stars, so when the star collapsed into a singularity, it must have pulled the other star closer. The rapid orbit of the star and singularity cause the star to eclipse...this is the first recorded instance of a blackhole eclipse. M33 is a galaxy that is three million lightyears away from Earth, so this event is happening fairly close on a cosmological scale.
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