Jubilant astronomers today unveiled humankind`s most spectacular views of the Universe as captured by the NASA/ESA Hubble Space Telescope`s new Advanced Camera for Surveys (ACS). They also reported that Hubble is operating superbly since the March servicing mission and are looking forward to more pictures from the newly revived NICMOS camera.
"The ACS is opening a wide new window onto the Universe. These are among the best images of the distant Universe humans have ever seen," says Johns Hopkins University astronomer Holland Ford, the lead scientist in the ACS` seven-year development. "The ACS will let us obtain the deepest image of the Universe for the foreseeable future," added astronomer Garth Illingworth, the deputy leader for the ACS.
The camera`s tenfold increase in efficiency will open up much anticipated new `discovery space` for Hubble. "ACS will allow us to push back the frontier of the early Universe. We will be able to enter the `twilight zone` period when galaxies were just beginning to form out of the blackness following the cooling of the Universe from the Big Bang," says Ford.
Lars Lindberg Christensen | alphagalileo
Studying fundamental particles in materials
17.01.2017 | Max-Planck-Institut für Struktur und Dynamik der Materie
Seeing the quantum future... literally
16.01.2017 | University of Sydney
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Many pathogens use certain sugar compounds from their host to help conceal themselves against the immune system. Scientists at the University of Bonn have now, in cooperation with researchers at the University of York in the United Kingdom, analyzed the dynamics of a bacterial molecule that is involved in this process. They demonstrate that the protein grabs onto the sugar molecule with a Pac Man-like chewing motion and holds it until it can be used. Their results could help design therapeutics that could make the protein poorer at grabbing and holding and hence compromise the pathogen in the host. The study has now been published in “Biophysical Journal”.
The cells of the mouth, nose and intestinal mucosa produce large quantities of a chemical called sialic acid. Many bacteria possess a special transport system...
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