Now We Are Six

Canada Goose Coats On Sale Note: To celebrate the 20th anniversary of the Hubble Space Telescope, for ten days, Universe Today will feature highlights from two year slices of the life of the Hubble, focusing on its achievements as Canada Goose Parka an astronomical observatory. Today’s article looks at the period April 1994 to April 1996. Canada canada goose coats Goose Coats On Sale

canada goose uk outlet After the famous Apollo 8 “Earthrise” image, comet Shoemaker Levy 9′s impact with Jupiter, in July 1994, strikes us as the most stark reminder of the fragility of our home. And the Hubble gave us the clearest pictures of just how destructive that collision was; those dark blotches are bigger than the Earth. canada goose uk outlet

canada goose store Much of the Hubble’s Canada Goose online time in the first few years was devoted to the Hubble Space Telescope Key Projects, two of which I mentioned yesterday, “on the Extragalactic Distance Scale”, and the “Quasar Absorption Line” Key Project. There is a third, the Medium Deep Survey (MDS), lead by Canada Goose sale Richard Griffiths, who is now at Carnegie Mellon University. Here’s a nice bit of trivia: astronomers spend an inordinate, a humongous amount of time doing surveys; they even build entire observatories devoted exclusively canada goose store to them (think Sloan Digital Sky Survey, of Galaxy Zoo fame)! And here’s a question for you: why? Why are surveys soooo important to astronomers? canada goose store

canada goose Hubble images of distant spiral galaxies (Credit: NASA, Richard Griffiths/JHU, Medium Deep Survey Team) canada goose

canada goose clearance Anyway, MDS is interesting for another reason too; it’s a “parallel mode” project while the Hubble is pointed at its main target, a nearby field is also observed, using WF/PC or the Faint Object Camera (or, later, WFPC2); two results for the price of one! However, perhaps more than any other canadian goose jacket observations, the MDS ones before the Hubble had its vision fixed (see yesterday’s article) suffered from the mis figuring of the primary mirror. And it’s a tribute to the ingenuity and perseverance of Griffiths and his colleages that they were, eventually, buy canada goose jacket cheap to wring so much Canada Goose Outlet good science from the data (you guessed it, hundreds and hundreds of papers). Naval Observatory, and NASA) canada goose clearance

uk canada goose outlet Jupiter wasn’t the canada goose deals only canada goose black friday sale solar system object of interest to Hubble; Uranus, its rings and inner moons captured on film (well, CCD); the first surface features on Pluto were snapped; Saturn’s Aurorae imaged; the Galilean moons of Jupiter mapped; etc, etc, etc. uk canada goose outlet

canadian goose jacket Credit: J. Bahcall, Institute for Advance Study, Princeton, F. Paresce, STScI ESA, and NASA canadian goose jacket

canada goose coats on sale My own favorite Hubble canada goose coats on sale recollection from these two years is (another!) paper by John Bahcall, “M dwarfs, microlensing, and the mass budget of the Galaxy”, which basically proved that the Milky Way’s halo is composed principally of non baryonic dark matter. The version posted here you may not have seen before, because it uses a different color transform, by Robert Lupton (more images using this technique here). canada goose coats on sale

Canada Goose online Hubble: It Was Twenty Years Ago Today Canada Goose online

canada goose factory sale Sources: HubbleSite, European Homepage for the NASA/ESA Hubble Space Telescope, The SAO/NASA Astrophysics Data System canada goose factory sale

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Canada Goose Parka I can remember the exact moment that I became hooked on astronomy for the rest of my life. That moment was when I saw the pillars of creation image, fresh from Hubble, on the news one night. Canada Goose Parka

Canada Goose Outlet canada goose clearance sale The image stunned me, but so did the numbers they were bandying about in relation to it tens of trillions of kilometers long! The number blew my mind at the time, and still does. How could one wrap their mind around something so https://www.canadagoosepark.com immense? And yet there it was, right in front of me on the screen! Canada Goose Outlet

Canada Goose sale Then, not too long afterwards, the HUDF came along and forced my brain into conniptions trying to cheap Canada Goose come to terms with a whole new sense of scale. Canada Goose sale

Canada Goose Online The feeling I got that night when I saw the POC image is never far from me now pure dumb struck awe at such an incredible universe, and our equally surprising and incredible ability to understand it Canada Goose Online.