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Why sharks like it hot – but not too hot

Why sharks like it hot – but not too hot

Media captionWatch the scientists getting close to a tiger shark Scientists have calculated the water temperature at which tiger sharks are most active and abundant. They say the sharks, which are second only to great whites in attacking people, prefer a balmy 22C. Shark populations may shift range as the oceans heat up, bringing them […]

Humans ‘thrived’ after historic Mount Toba eruption

Humans ‘thrived’ after historic Mount Toba eruption

Image copyright Reuters Image caption Volcanic eruptions can throw debris across large distances Early humans may have flourished after the largest volcanic eruption in history, according to new research. Mount Toba erupted in Indonesia about 74,000 years ago. The event was long thought to have caused a volcanic winter, drastically reducing the global human population […]

‘Boaty McBoatface’ sub survives ice mission

‘Boaty McBoatface’ sub survives ice mission

Image copyright NOC Image caption Boaty McBoatface was launched from the German Research Vessel Polarstern “Boaty McBoatface” has executed its most daring dive yet. The nation’s favourite yellow submarine swam under a near-600m thick ice shelf in the Antarctic, returning safely to its launch ship after 48 hours away. It was an important test for […]

Microplastics are ‘littering’ riverbeds

Microplastics are ‘littering’ riverbeds

Media captionWatch: A look under the microscope to discover the hidden microplastics lurking in our waters Microscopic plastic beads, fragments and fibres are littering riverbeds across the UK – from rural streams to urban waterways. This is according to a study that analysed sediments from rivers in north-west England. Scientists from the University of Manchester […]

UK ‘space drones’ look to Proton rocket ride

UK ‘space drones’ look to Proton rocket ride

Image copyright EFFECTIVE SPACE Image caption Artwork: The “Space Drone” (yellow) would dock with the ageing telecommunications satellite (orange) UK-headquartered start-up Effective Space aims to put up its first satellite servicing “drones” in 2020. The company has announced an intent to contract with International Launch Services, which manages the commercial flights of the Russian Proton […]

UN review says carbon plans fall well short of climate goals

UN review says carbon plans fall well short of climate goals

Image copyright Getty Images Image caption The report warns that extreme weather events like droughts will become more common unless stronger action is taken to cut emissions A UN review of national plans to cut carbon says they are well short of the levels needed to keep the rise in global temperatures under 2C. The […]

James Webb: Two years to Hubble successor’s launch

James Webb: Two years to Hubble successor’s launch

Image copyright NASA/Chris Gunn Image caption The curvature of the mirrors has just been checked ahead of the shake and acoustic tests Engineers have finished assembling the telescope that will succeed Hubble. The huge new observatory known as James Webb is on track to be launched in exactly two years from now. It will go […]

Rock shelter used by speedy early Australians

Rock shelter used by speedy early Australians

Image copyright Giles Hamm Image caption The scientists think the shelter, 550km north of Adelaide, was used episodically over thousands of years The speed at which the first Aboriginal settlers spread across Australia has been underlined by the discovery of an ancient rock shelter north of Adelaide. The rock fissure in the Flinders Ranges contains […]

DNA clues to how chipmunk earned its stripes

DNA clues to how chipmunk earned its stripes

Image copyright Linda Freshwaters Arndt/SCIENCE PHOTO LIBRARY Image caption The eastern chipmunk (Tamias striatus) drinking water in bird bath Its stripy back makes it one of the most recognisable of rodents – but until now it has been unclear exactly how the chipmunk earned its stripes. Now, scientists have found the evolutionary gene change responsible […]

Tim Peake schools seed experiment results released

Media captionEarlier this year Tim Peake explained how schoolchildren can grow rocket seeds that have flown with him in space The results of a schools experiment led by Tim Peake have been released. Six hundred thousand school children have discovered that seeds that have been in space grow almost as well as those that have […]

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