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Ask an Astronomer - The Jodcast

  1. Ask an Astronomer - Neutron star shapes, planet formation and the Big Bang timeline2017/05/22
    Ask an Astronomer
    Iain answers your astronomical questions: X, Y and Z
    Mark Leach has a question about neutron star deformation Phil Rushton asks about order in the Solar System Frances Cairns asks, "Is the Big Bang still happening?"
  2. Ask an Astronomer - Metalenses, photon directionality and the frequency of comet visitation2017/04/25
    Ask an Astronomer
    George answers your astronomical questions: Metalenses, photon directionality and the frequency of comet visitation
    Mark asks, "How will the new Metalens developments help astronomy?" John wants to know if photons have a preferred direction Eleanor asks "How often can we see comets?"
  3. Ask an Astronomer - The Speed of Light2017/03/22
    Ask an Astronomer
    As the speed of light is such a critical factor in the search for ET, we rounded up all our questions related to c and gave them to Francesca Pearce. With Mateusz Malenta, she tackles questions from Ben Dyer, Henning Vester Jorgensen and Tom Perry who all have concerns about the nature and propagation of light, and time.
  4. Ask an Astronomer - Galaxy Collisions, telescopes and asteroids2017/01/23
    Ask an Astronomer
    Minnie, Ben and George answer your astronomical questions: Galaxy Collisions, telescopes and asteroids
    Alex asks, "What would happen if our galaxy collided with another?" Oliver asks us what kind of object are visible with telescopes Gillian wants to know about the ever-present dangers from space
  5. Ask an Astronomer - Radio galaxies, comets and astronomer antics2016/12/24
    Ask an Astronomer
    Minnie, Ben, and George answer your astronomical questions:
    June asks: "What is a radio galaxy? (Bonus question: What do astronomers do all day?") Alexander asks: "When will Halley's comet be returning?" Assya asks: "How many astronomers are in space?"
  6. Ask an Astronomer - The distance to the Sun, life on Mars and the number of stars in the Universe2016/11/18
    Ask an Astronomer
    Minnie, Ben and George answer your astronomical questions: The distance to the Sun, life on Mars and the number of stars in the Universe
    Emelia asks, "How far away is the Sun?" Natalie wants to know if there's life on Mars Joshua asks "How many stars are there in space?"
  7. Ask an Astronomer - Metals in stars, the problem with information and Life on Mars2016/10/28
    Ask an Astronomer
    Dr Iain McDonald answers your astronomical questions: Metals in stars, the problem with information and Life on Mars
    YODATHEOAK asks about the production of metals in stars, Phillip Le Riche wants to know why cosmologists care about conservation of information Paul Stevenson asks, "Should we revisit the results from Mars' Viking Lander?"
  8. Ask an Astronomer - Disentagling redshift and demoting Neptune.2016/09/30
    Ask an Astronomer
    Benjamin Shaw answers your astronomical questions: Disentagling redshift and demoted Neptune.
    Owen asks about the different sources of redshift and how we tell the difference between them Jacqeline wants to know why Neptune is still a planet when Pluto crosses its orbit
  9. Ask an Astronomer2016/07/15
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  10. Ask an Astronomer - Gravitational waves, inflation, and relatvity2016/06/21
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  11. Ask an Astronomer - Expensive spacecraft, microgravity and black holes.2016/05/19
    Ask an Astronomer
    Prof. Tim O' Brien answers your astronomical questions:
    Christoph asks, "What single space mission would you launch in the next ten years if money was no constraint?" Russ asks about the perception of gravity on the International Space Station. @Malcontent (via Twitter) wants to know if the missing mass in the Universe could be hiding in black holes.
  12. 01:19:56.9262016/04/18
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  13. Ask an Astronomer - The expanding universe, gravitational waves, planet 9 and much much more!2016/03/21
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  14. Ask an Astronomer - Cosmological redshift, the speed of space and gravitational lensing2016/01/14
    Ask an Astronomer
    Dr Joe Zuntz answers your astronomical questions:
    Kenny Macleod asks us about cosmological redshift and what properties of the universe it affects Martin wants to know about the speed at which the unverse can expand and how could spacetime have behaved close to the Big Bang Philip King asks, "Can a gravitational lens reveal an object at different distances and times?"
  15. Ask an Astronomer - Kuiper Belt encounters, Earth's curvature and what the eye can see2015/12/29
    Ask an Astronomer
    Dr Iain McDonald answers your astronomical questions:
    Armando asks us about near Kuiper Belt misses by our long distance spacecraft Ian wonders about the curvature of the Earth Sean wants to know what the most distant object his eyes will allow him to see is
  16. Ask an Astronomer - Einsten and GPS, our 100 light year radio sphere and digging down into Mars2015/11/25
    Ask an Astronomer
    New Jodcaster Dr Anna Scaife answers your astronomical questions:
    Stanely Furtig asks us about the relativity corrections applied to the clocks on GPS satellites. Matthew Wilday wants to know about the number of stars that intercept our radio transmissions Russ Jenkins asks us about the interior of Mars
  17. Ask an Astronomer - Coronal heating, spiral mergers and digging down into Mars2015/10/19
    Ask an Astronomer
    Dr George Bendo answers your astronomical questions:
    Simon Everitt asks: What effect does the Solar corona have on heating the Earth? Paul Stevenson asks: How do elliptical galaxies form from the mergers of spirals? Russ Jenkins asks: What temperature gradient would you measure, if you were to dig down to the centre of Mars?
  18. Ask an Astronomer - dark matter in black holes, photon interactions and the mass of the Sun2015/09/22
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  19. Ask an Astronomer - big photons, hidden dark matter and counting baryons2015/06/22
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  20. Ask an Astronomer - dark matter in equilibrium, the spinning Solar System and the detectability of humanity by aliens2015/05/17
    Ask an Astronomer
    Dr George Bendo answers your astronomical questions:
    Steve Smethurst asks: "Is dark matter in thermal equilibrium with the rest of the Universe?" John Brooks asks: "How does our Solar System rotate in comparison to the Milky Way?" Mike Nash says: "Could man-made radio emission from the Earth really be detectable by aliens at interstellar distances?"
Ask an Astronomer - The Jodcast
http://www.jodcast.net/
Answering questions about astronomy that have been sent in by our listeners.

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