CO2 and rice, Underground farming, Ancient interstellar asteroid, Microplastics air pollution

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Should we rethink navigating by GPS?

This week 14 European countries warned that “maritime safety and security” was being put in jeopardy by Russian interference. The Royal Institute of Navigation says GPS is so vulnerable to so called ‘spoofing’ and ‘jamming’ that we need to rethink the navigation systems on which ...  Show more

How is air travel returning to supersonic speeds?

It’s exactly half a century since two Concorde jets took off from Paris and London respectively. The supersonic jet would come to define top end luxury travel. But Concorde has also been retired for nearly half that time, famously making its final flight to Bristol, UK where it w ...  Show more

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Lucy in the Sky With Asteroids
Overheard at National Geographic

How did the planets form? How did life happen? Where did Earth’s water come from? To answer questions like these, scientists used to go big—looking at planets, dwarf planets, and moons—but now small is the new big. Technology is zooming in on the pint-size stuff—asteroids, comets ...  Show more

An armada for asteroid Apophis?
Science In Action

Friday, April 13th 2029 – mark it in your calendar. That’s the day an asteroid the size of an aircraft carrier will fly past Earth, closer than some satellites. Don’t worry – it will miss, but it’ll will pass so close to Earth that it will be visible to the naked eye of 2 billion ...  Show more

Osiris Rex stows asteroid material
Science In Action

Last week NASA’s Osiris-Rex mission successfully touched down on asteroid Bennu’s crumbly surface. But the spacecraft collected so much material that the canister wouldn’t close. NASA systems engineer Estelle Church tells Roland Pease how she and the team back on Earth performed ...  Show more

Seismic events on Mars
Unexpected Elements

The latest observations from Nasa’s InSight Mars Lander and Mars Reconnaissance Orbiter (MRO) have revealed new information on Mars’ interior structure. Dr Anna Horleston, Senior Research Associate in Planetary Seismology at the University of Bristol, talks us through the mars-qu ...  Show more