Source: Chandra
Very deep Chandra observation of the Tycho supernova remnant.
Image credit: NASA/CXC/Rutgers/K.Eriksen et al.
A long Chandra observation of Tycho has revealed a pattern of X-ray "stripes" never seen before in a supernova remnant.
This result could explain how some of the extremely energetic particles bombarding the Earth, called cosmic rays, are produced.(read source)
Source: ESO Science Release 1110
Artist’s impression shows the pair of brown dwarfs named CFBDSIR 1458+10.
Image credits: ESO/L.Calçada.
Observations with the European Southern Observatory’s Very Large Telescope, along with two other telescopes, have shown that there is a new candidate for the coldest known star: a brown dwarf in a double system with about the same temperature as a freshly made cup of tea — hot in human terms, but extraordinarily cold for the surface of a star. This object is cool enough to begin crossing the blurred line dividing small cold stars from big hot planets.(read more)
Source: NASA News
Graphic image of Shell Buckling Knockdown Factor Test. Credits: NASA
NASA put the squeeze on a large rocket test section today. Results from this structural strength test at NASA's Marshall Space Flight Center in Huntsville, Ala., will help future heavy-lift launch vehicles weigh less and reduce development costs.
This trailblazing project is examining the safety margins needed in the design of future, large launch vehicle structures. Test results will be used to develop and validate structural analysis models and generate new "shell-buckling knockdown factors" -- complex engineering design standards essential to launch vehicle design. (read more)
