NASA launches rocket...
Dozens report strange lights: Story.
"Calls came from 380 miles N.E. of launch site; from Sat. eve data gather; from highest clouds in Earth's atmosphere." #
Image: Black Brant XII
NASA reported that the light came from an artificial noctilucent cloud formed by the exhaust particles of the rocket's fourth stage about 173 miles high.
Sounding Rockets Program Office (SRPO) web site.
Shown is the launch with radar and telemetry tracking, the full trajectory of the vehicle, as well as stage events and apogee... sounding rockets conduct space, microgravity and Earth science research (& new technologies.)
"Science is what you know. Philosophy is what you don't know."
Here's the NEWS video...
NASA Wallops Flight Facility: More.
The Black Brant is a Canadian-designed sounding rocket built by Bristol Aerospace in Winnipeg, Manitoba. Over 800 Black Brants of various versions have been launched since they were first produced in 1961, and the type remains one of the most popular sounding rockets ever built. They have been repeatedly used by the Canadian Space Agency and NASA. Read.
Materials in Space:
Metallurgical research: NASA/ESA
(ISS US Destiny) Processing conditions & properties of materials, help improve earth's efficiency. Read.
More Links... (less related)
Lovely little edited Sci-Fi clip:
-VIDEO: From Movie, "Fifth Element" VIEW
-And this one: VIEW.
The Ultimate Fate of the Universe: Read.
M changes with r^3, but r only changes with itself. So if the universe is big enough, we can find such r, that the total mass inside the sphere of radius r is: M=rho*r^3 > r/2G i.e. r<2GM
which means we live inside a black hole's event horizon. ;)