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Catégorie(s) Astronomie et Espace / Sciences et Techniques
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  • Weekly Space Hangout: December 4, 2019 – Dr. Becky Smethurst’s “Space: 10 Things You Should Know”
    par Universe Today le 04/12/2019 à 1:03

    Hosts: Fraser Cain ( / @fcain) Dr. Brian Koberlein ( / @BrianKoberlein) Sondy Springmann (@sondy) Michael Rodruck (@michaelrodruck) Tonight we air Fraser’s pre-recorded interview with Dr. Becky Smethurst from Tuesday, November 26th. Dr. Smethurst is a […]

  • Weekly Space Hangout: Oct 31, 2018 – David Dickinson
    par Universe Today le 02/11/2018 à 4:08

    Hosts: Fraser Cain ( / @fcain) Dr. Paul M. Sutter ( / @PaulMattSutter) Dr. Kimberly Cartier ( / @AstroKimCartier ) Dr. Morgan Rehnberg ( / @MorganRehnberg & David Dickinson discusses his new book, written with […]

  • Supermassive Black Holes or Their Galaxies? Which Came First?
    par Universe Today le 06/09/2017 à 7:13

    It’s a mystery that’s puzzled astronomers for years. Which came first, supermassive black holes or the galaxies that surround them? The post Supermassive Black Holes or Their Galaxies? Which Came First? appeared first on Universe Today.

  • Will The Sun Explode?
    par Universe Today le 06/01/2014 à 5:26

    All stars die, some more violently than others. Once our own Sun has consumed all the hydrogen fuel in its core, it too will reach the end of its life. Astronomers estimate this to be a short 7 billion years from now. For a few million years, it will expand into a red giant, puffing … […]

  • Using the ‘Missing Physics’ of Stellar Feedback to Accurately Simulate Galaxies from the Big Bang to Today
    par Universe Today le 19/11/2013 à 6:51

    For the first time, astronomers are able to accurately simulate galaxies from shortly after the big bang to today by including a realistic treatment of the effects stars have on their host galaxies. For the past few decades astronomers have simulated galaxies by mixing the basic physical […]

  • This is the Moon, the Whole Moon and Nothing But the Moon
    par Universe Today le 16/10/2013 à 9:48

    Take a look around the Moon… no, really, take a good look AROUND the Moon! This is a fantastic animation of our planetary partner in space made by the folks on the Lunar Reconnaissance Orbiter team at Arizona State University. Assembled from reflectance maps and digital terrain models […]

  • New Podcasts: Precession and Acceleration
    par Universe Today le 09/09/2013 à 2:56

    We’ve got two new podcasts from the Astronomy Cast team of Dr. Pamela Gay and Fraser Cain: Ep. 313: Precession, and Episode 314: Acceleration. 313: Precession The Earth is wobbling on its axis like a top. You can’t feel it, but it’s happening. And over long periods of time, these […]

  • Trojan Asteroid Found Orbiting Uranus
    par Universe Today le 29/08/2013 à 6:00

    What’s new in the outer reaches of our solar system? Try the discovery of a Trojan asteroid orbiting Uranus. While a plethora of puns exist for this simple fact, the reality check is that this means there are far more of these objects out there than astronomers expected. The new Trojan even […]

  • Podcast: The Inverse-Square Law and Other Strangeness
    par Universe Today le 07/08/2013 à 3:09

    Why don’t we have insects the size of horses? Why do bubbles form spheres? Why does it take so much energy to broadcast to every star? Let’s take a look at some non-linear mathematical relationships and see how they impact your day-to-day life. Click here to download the episode. Or […]

  • The Great Galactic Turn-Off
    par Universe Today le 01/08/2013 à 3:00

    Are you ready for a new galactic puzzle? Then let’s start with some clues. It has been long assumed that some galaxies reach a point in their evolution when star formation stops. In the distant past, these saturated galaxies appeared smaller than those formed more recently. This is what […]

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