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Why are we still sending probes to Mars?
How It Works UK
|Issue 206
Mars is perhaps the most interesting, and certainly the most Earth-like world in the Solar System, and there's a huge amount still to find out about it.
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So far we've put around a dozen space probes successfully into orbit around Mars, each carrying specialised instruments to teach us about new aspects of the surface, while the Perseverance rover was only the ninth safe landing on the Red Planet, and the
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FLERE HISTORIER FRA How It Works UK
How It Works UK
INSIDE TRUMP'S 'PALACE IN THE SKY'
This luxurious intercontinental jumbo jet will be the US president's new Air Force One
3 mins
Issue 206
How It Works UK
Why are we still sending probes to Mars?
Mars is perhaps the most interesting, and certainly the most Earth-like world in the Solar System, and there's a huge amount still to find out about it.
1 min
Issue 206
How It Works UK
BURMESE PYTHONS HAVE CELLS THAT HELP THEM DIGEST ENTIRE SKELETONS
Researchers found that specialised cells in Burmese pythons' intestinal lining process calcium from the bones of their meals. This helps explain how these predators digest whole prey.
1 min
Issue 206
How It Works UK
DISCOVERING THE TITANIC
Finding the remains of this iconic liner on the seabed was no easy feat, but after more than seven decades the wreckage revealed itself
6 mins
Issue 206
How It Works UK
Melting glaciers could trigger volcanic eruptions around the globe
Melting glaciers could make volcanic eruptions more explosive and frequent, worsening climate change in the process, scientists have warned. Hundreds of volcanoes in Antarctica, Russia, New Zealand and North America rest beneath glaciers. But as the planet warms and these ice sheets melt and retreat, these volcanoes are likely to become more active, according to the authors of a new study analysing the activity of six volcanoes in southern Chile during the last ice age. “Glaciers tend to suppress the volume of eruptions from the volcanoes beneath them. But as glaciers retreat due to climate change, our findings suggest these volcanoes go on to erupt more frequently and more explosively,” said Pablo Moreno Yaeger, a graduate student at the University of Wisconsin-Madison.
2 mins
Issue 206
How It Works UK
The world's dams hold so much water they've shifted Earth's poles
The construction of thousands of dams since 1835 has caused Earth's poles to wobble, new research suggests. Scientists found that large dams hold so much water, they redistribute mass around the globe, shifting the position of Earth's crust relative to the mantle, the planet's middle layer. Earth's mantle is gooey, and the crust forms a solid shell that can slide around on top of it. Weight on the crust that causes it to shift relative to the mantle also shifts the location of Earth's poles. \"Any movement of mass within the Earth or on its surface changes the orientation of the rotation axis relative to the crust, a process termed true polar wander,\" researchers wrote in the journal Geophysical Research Letters.
2 mins
Issue 206
How It Works UK
WHY WE STUDY SPACE DUST
Long ignored by scientists, cosmic dust is becoming an increasingly important field of study
2 mins
Issue 206
How It Works UK
HOW DINOSAURS BECAME BIRDS
Dinosaurs were prehistoric egg-laying reptiles that went extinct millions of years ago, but their survivors still live among us
5 mins
Issue 206
How It Works UK
WHY ARE SMOKE DETECTORS RADIOACTIVE?
These devices use a radioactive element to help sniff out smoke and alert you to a potential fire
2 mins
Issue 206
How It Works UK
SALLY RIDE MEMORABILIA COLLECTION SELLS FOR OVER £100,000
A set of memorabilia chronicling Sally Ride’s pioneering path to space just fetched a pretty penny at auction.
1 min
Issue 206
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