BBC Inside Science

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Factual: Science & Nature

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A weekly programme looking at the science that's changing our world.

A weekly programme that illuminates the mysteries and challenges the controversies behind the science that's changing our world.

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BBC Inside Science: Buried Mars Landers, Freezing Species, and Low-Tide Archaeology

Precious Metals, Earlier Eggs, and Meaningful Meteorites

Buried Mars Landers, Freezing Species, and Low-Tide Archaeology

BBC Radio 4 - BBC Inside Science, Buried Mars Landers, Freezing Species, and Low-Tide Archaeology

Why Nasa's Marsquake monitor is powering down for good.

Nasa's InSight Mars lander nears its end, tree mortality in tropical forests has doubled in 50 years, and why conservationists are putting animal tissue on ice.

Since 2018, Nasa's InSight Mars lander has been sitting on the surface listening to the seismic rumbles of the red planet's deep interior. But this week, plans were announced to finally phase down its activity, as martian dust obscures too much of its solar panels to power it through the forthcoming winter. Jon Amos tells Vic Gill of some of its many successes, and quite why it didn't fly with a duster on board. 

50 years of observations across Australia's northern tropical forests suggest yet more bad news for the climate. Trees’ mortality has, it seems, doubled since the 1980s. As Oxford University's David Bauman tells Vic, it seems to be linked to a drying of the air as temperatures rise, and if the trend is also true across the world's other moist tropical forests, they could rapidly slip from being carbon sinks, to carbon sources.

Conservationists say we’re losing animal species faster today than at any point in the last 10 million years of Earth’s history. And one approach aims to save as many of those lost animals as possible – after they’ve died.  Biobanking – saving frozen tissue from dead animals for future cloning or other reproductive technologies could buy us time to prevent extinction - or even reverse it. Vic visits Nature's Safe, where technology used in pedigree breeding is being deployed to preserve the cells and tissue of endangered species when individuals die or are euthanised, for possible research in the future, or even cloning.

Meanwhile, 2.5 miles off the coast of Jersey, archaeologists are holing up in a medieval fortress waiting for the few lowest tides of the year to give them access to the Violet Bank - an area of reef thought once to have been home to Neanderthal populations, but which now is for most of the year submerged by the sea. Marnie Chesterton has been talking to UCL’s Matt Pope between the ebbs and flows. 

Presented by Victoria Gill

Reporters: Marnie Chesterton and Jonathan Amos

Produced by Alex Mansfield

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Buried Mars Landers, Freezing Species, and Low-Tide Archaeology

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