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  • Tag Archives: NASA

    New Space Telescope

    New Space Telescope GLAST (Gamma-ray Large Area Space Telescope) is going to explore the birth of the universe. Read this quote from the mission page at Stanford University (http://www-glast.stanford.edu/mission.html)

    The key scientific objectives of the GLAST mission are:

    1. To understand the mechanisms of particle acceleration in AGNs, pulsars, and SNRs. This understanding is a key to solving the mysteries of the formation of jets, the extraction of rotational energy from spinning neutron stars, and the dynamics of shocks in SNRs.
    2. Resolve the gamma-ray sky: unidentified sources and diffuse emission.Interstellar emission from the Milky Way and a large number of unidentified sources are prominent features of the gamma-ray sky.
    3. Determine the high-energy behavior of gamma-ray bursts and transients. Variability has long been a powerful method to decipher the workings of objects in the Universe on all scales. Variability is a central feature of the gamma-ray sky.
    4. Probe dark matter and early Universe. Observations of gamma-ray AGN serve to probe supermassive black holes through jet formation and evolution studies, and provide constraints on the star-formation rate at early epochs through photon-photon absorption over extragalactic distances. There are also the possibilities of observing monoenergetic gamma-ray “lines” above 30 GeV from supersymmetric dark matter interaction; detecting decays of relics from the very early Universe, such as cosmic strings or evaporating primordial black holes; or even using gamma-ray bursts to detect quantum gravity effects.

    Video about GLAST:

    Astronomy Picture of the day

    Have you noticed the pictures on the sidebar? Every day you can see a new astronomy related picture - it can be pictures of outer space, pictures of stars, pictures of galaxies, or pictures of big telescopes on earth. Whatever it is, it is alway a truely fascinating astronomy picture. How is it done? Can you have it on your page, too? Well, yes! It is easy, if you run a wordpress blog.

    The pictures on the sidebar are from Paul Lamb’s fantastic wordpress plugin APOD. It takes the “Astronomy Picture of the Day” from NASA’s web page (http://antwrp.gsfc.nasa.gov/apod/). Each day a new image is displayed and if you click on the picture, you are taken to NASA’s picture of the day page where you see the astronomy picture in big ;-) (And where you can read a short description by a professional astronomer, who tells you what you actually can see on the pictures).

    If you like space pictures, then the NASA astronomy picture of the day is definitly made for you…

    And if you want to explore more pictures of our universe, have a look at the NASA image archive…