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Episode 108 – NASA’s Europa Clipper Mission

By Gurbir Dated: November 25, 2022 Leave a Comment

The Europa Clipper mission, due for launch in 2024, will arrive and orbit Jupiter in 2030. The third spacecraft to do so after Galileo (in 1995) and Juno (in 2016). The Pioneer and Voyager missions were flybys. The primary objective, as the mission name suggests, is the investigation of Jupiter’s Moon, Europa. Called Europa-Clipper after the 19th-century merchant ships that shuttled between ports at the high-speed then available.

Europa-Clipper will orbit Jupiter, not Europa. This is one of Jupiter’s moons that shows strong evidence of a sub-surface water ocean. During its four-year mission lifetime it will flyby Europa dozens of times looking for conditions suitable for life.

Dr Steven Vance talks about the mission’s goals and current state of readiness. This was recorded in Athens during Cospar 2022. He was the scientific advisor to the 2013 film Europa Report.


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Episode 106 – ESA’s new science missions

By Gurbir Dated: November 11, 2022 Leave a Comment

Pau McNamara

European Space Agency’s Dr Paul McNamara was studying low-frequency gravitational waves just before they were discovered in 2015. Now he is the astronomy and astrophysics coordinator for the European Space Agency. In this interview, recorded in Athens during Cospar2022, he speaks about some of the exciting science missions that ESA will be launching later this decade.

These missions include

  • Juice – JUpiter ICy moons Explorer
  • Euclid – To explore dark matter and dark energy
  • Plato – The next-generation planet-hunting mission
  • Ariel – A UK-led mission to explore the atmospheres of exoplanets

He also talks about ESA’s publicly available resources especially useful to science educators. Planetary Science Archive and ESA Sky. They are available to anyone, in or outside Europe and without charge. Links are available on this episode’s web page.


Dr Paul McNamara

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Episode 105 – Return to Titan – Dragonfly

By Gurbir Dated: November 4, 2022 Leave a Comment

NASA’s Cassini-Huygens lander arrived at Titan on 14th January 2005. The first instrument to make contact with the surface of Titan was a penetrometer made by Ralph Lorenz. Since then he has gone on to write many books and work on several other projects.

Dr Ralph Lorenz

In this episode, he speaks about some of those projects, especially Dragonfly, a return mission to land on Titan. This mission, for which he is the mission architect, is like no other. It is not really a lander or rover but a quadcopter that will sample different regions near the landing site during its 3.3-year lifetime. Ralph talks about what we can expect from Dragonfly which launches in 2027 and arrives at Titan in 1934.

The documentary Destination Titan we refer to in this discussion is available here is available on Youtube here.



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Episode 104 – William Leitch. The forgotten Scottish Rocket Pioneer

By Gurbir Dated: October 28, 2022 Leave a Comment

When it comes to the pioneers of rocketry, tradition has it that it was Tsilokosky, Goddard and Oberth. in this episode, author Rob Godwin talks about William Leitch from Scotland. Leitch was writing about the principles of rocket propulsion and space travel in 1861. Decades before Tsiolkovsy. Over the last few years, Rob has been researching Leitch’s story and published a book – William Leitch Presbyterian Scientist & The Concept of Rocket Space Flight 1854-1864

In this interview recorded via Zoom, Rob Godwin recalls how he came across Leitch’s work and the research activity that eventually led him to uncover this remarkable story.

The following 19th-century publications, that Rob refers to are now available online, and pdf versions can be downloaded. Links are available on the episode page

  • Half hours in air and sky – Contains the essay “A Journey through Space” P143-168
  • Good Words Magazine
  • God’s Glory in the Heavens

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