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BBC Inside Science: Perseverance drills on Mars; space tourism; Australian fire debris and algal blooms; DNA vaccines against Covid

16/09/2021

Perseverance drills on Mars; space tourism; Australian fire debris and algal blooms; DNA vaccines against Covid

BBC Radio 4 - BBC Inside Science, Perseverance drills on Mars; space tourism; Australian fire debris and algal blooms; DNA vaccines against Covid

Mars rock samples; space tourism; fire debris and algal blooms; DNA vaccines for Covid.

Perseverance rover drills on Mars and stores the samples; space tourism as Inspiration 4 goes into orbit; Australian fire debris and Pacific algal blooms; DNA vaccines for Covid.

NASA's Perseverance rover has been trundling around the Jezero crater since it landed successfully in February 2021.  A few weeks ago it made its first attempt at collecting a sample of rock. Unfortunately the rock turned out to be so crumbly it disintegrated away. But Perseverance lives up to its name and has been drilling elsewhere and has now collected two samples. The rover has stored them in special canisters for later collection. Katie Stack-Morgan, Deputy Project Scientist of the Mars 2020 mission at NASA, tells Gaia Vince what they've found out so far.

The Inspiration 4 mission has just blasted off from the Kennedy Space Center with 4 civilian astronauts on board. Unlike previous billionaire space flights, which have shot up far enough to officially cross into space before immediately returning, these four are going further out than the International Space Station, where they will orbit the earth for three days.  BBC Science Correspondent Jonathan Amos talks about the recent boom in space tourism, and about the Chinese rover on Mars. 

The terrible Australian wildfires of the summer of 2019/20 had a devastating impact, burning across more than 18 million hectares and causing loss of life and livelihoods.. Now, it turns out the impacts stretched far beyond Australia. Climate scientists have been looking at satellite images of the vast Southern Ocean, which plays a major role in controlling the global climate, and found massive algal blooms, fertilised by debris blown thousands of kilometres from the fires. Gaia discusses the observations with Nicolas Cassar of Duke University, one of the authors on a recent Nature paper, and what they tell us about geoengineering to cool down the earth. 

This month India licensed the world’s first DNA vaccine against Covid. Jonathan Ball, Professor of Virology at the University of Nottingham, is involved with a DNA vaccine that is just starting in clinical trials. He explains the pros and cons of this kind of vaccine. It could be of benefit to those who are needle phobic.

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Perseverance drills on Mars; space tourism; Australian fire debris and algal blooms; DNA vaccines against Covid

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