Astronomy: Comet 21P, Lunar tourists

Weekend Variety Wireless 22/09/2018
Credit: Getty.

Astronomer Dr Grant Christie joins Ryan Bradley to talk about the latest in astronomy news.

First up, Ryan and Grant take a look at Comet 21P that is currently visible in a good telescope in the pre-dawn sky.

Comet 21P/Giacobini-Zinner has developed a long tail that makes it a good sight for binoculars and sensitive cameras.

  • Check out a video of the comet here.

Ryan and Grant then take a look at why the SpaceX Lunar Tourists won’t walk on the moon.

Elon Musk has claimed his Big Falcon Rocket crew vehicle might one day land on the moon. But that's not on the cards for any missions in the foreseeable future.

And when is a star not a star?

Grant discusses how the line that separates stars from brown dwarfs may soon be clearer. Astronomers demonstrate that brown dwarfs can be more massive than astronomers previously thought. 

Grant and Ryan also explore Planets that are visible to the naked eye, and the milky way’s stars.

Listen to the full interview with Dr Grant Christie above.

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