When Worlds Collide – the titanic collision of two asteroids

The astronomy and space science news podcast.

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SpaceTime with Stuart Gary Series 23 Episode 40

*When worlds collide – the titanic collision of two asteroids

Astronomers have observed an expanding cloud of icy debris caused by the catastrophic collision of two asteroids in a distant star system.




*Why NASA chose Jezero Crater for the Mars 2020 Perseverance rover

Preparations are continuing at the Cape Canaveral air force base for July’s planned launch of the Mars 2020 Perseverance rover. The mission will study the local geology and search for signs of past life on the red planet – which is why Jezero Crater was chosen from more than 60 candidate locations.


*Belief in UFOs and alien abductions is falling because people have more things to worry about.

Belief in extra-terrestrial life and aliens visiting the Earth in flying saucers to engage in some late-night probing has been a mainstay of science fiction for well over a hundred years but belief in UFOs and alien abductions is falling because people have more important things to worry about.


*The Science Report

Growing concerns that COVID-19 is spreading simply through breathing and talking.

Paper towels are better at removing viruses that hot air hand dryers.

Amphibians including frogs and salamanders on the front line of extinction due to global warming.

Summer Arctic sea-ice is predicted to disappear before 2050 due to climate change.

COVID-19 bringing out all the usual con-artists, shonks, and woo merchants.


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