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To guard against cyberattacks in space, researchers ask ‘what if?’

If space systems such as GPS were hacked and knocked offline, much of the world would instantly be returned to the communications and navigation technologies of the 1950s. Yet space cybersecurity is largely invisible to the public at a time of heightened geopolitical tensions.

Cyberattacks on satellites have occurred since the 1980s, but the global wake-up alarm went off only a couple of years ago. An hour before Russia’s invasion of Ukraine on Feb. 24, 2022, its government operatives hacked Viasat’s satellite-internet services to cut off communications and create confusion in Ukraine.

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Wildfire smoke linked to thousands of premature deaths every year in California alone

When wildfires rage, the immediate threat is obvious – but smoke from the fires actually kills far more people than the flames.

As fires become more frequent, that smoke is leading to a public health crisis.

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13 months of record-smashing heat called 'another red alert' for humanity

Scientists on Monday underscored the urgent need to accelerate the transition from fossil fuels to renewable energy following the publication of data from the European Union's climate change monitor showing that last month was the hottest June ever recorded and that 2024 is likely to be the planet's hottest year on record.

Each month since June 2023 has been the hottest since records have been kept, the European Union's Copernicus Climate Change Service (C3S) said last week in its latest monthly bulletin.

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Animal crossing: Highway bridge aims to save California's cougars

Hollywood stars aren't the only celebrities who live in the hills around Los Angeles -- Southern California's mountain lions also make their homes there and are sometimes almost as famous.

The animal, also known as a puma or a cougar, is the region's apex predator, and spotting them is something of a hobby for locals.

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Old pipes cause Texas cities to lose tens of billions of gallons of water each year

This article was first published by The Texas Tribune, a nonprofit, nonpartisan media organization that informs Texans — and engages with them — about public policy, politics, government and statewide issues. Sign up for The Brief, The Texas Tribune’s daily newsletter.

Texas’ most populous cities lost roughly 88 billion gallons of water last year because of aging water infrastructure and extreme heat, costing them millions of dollars and straining the state’s water supply, according to self-reported water loss audits.

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June hottest on record, beating 2023 high: EU climate monitor

Last month was the hottest June on record across the globe, the EU's climate monitor said Monday, capping half a year of wild and destructive weather from floods to heatwaves.

Every month since June 2023 has eclipsed its own temperature record in a 13-month streak of unprecedented global heat, the Copernicus Climate Change Service (C3S) said.

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Sticky future: climate change hits Nepal's honey hunters

Hanging from a rope-and-bamboo ladder off a Himalayan mountain cliff, skilled Nepali climbers gather highly prized hallucinogenic honey -- an ancient tradition stung by environmental degradation and rapid climate change.

Wreathed in smoke to drive away defensive clouds of giant bees, 26-year-old Som Ram Gurung dangles dangerously 100 metres (325 feet) off the ground, slicing off dark and dripping hunks of delicious honeycomb.

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‘Ready to come out?’ Scientists reemerge after year ‘on Mars’

The NASA astronaut knocks loudly three times on a what appears to be a nondescript door, and calls cheerfully: “You ready to come out?”

The reply is inaudible, but beneath his mask he appears to be grinning as he yanks the door open — and four scientists who have spent a year away from all other human contact, simulating a mission to Mars, spill out to cheers and applause.

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Menopause treatments can help with hot flashes and other symptoms

Menopause used to be a taboo topic in many quarters. Now, it’s frequently in the news.

In March 2024, the White House announced an initiative to “Galvanize New Research on Women’s Midlife Health.” In May, Sen. Patty Murray introduced bipartisan legislation that would spend US$275 million to improve menopause care and midlife health.

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‘Jaws’ portrayed sharks as monsters, but it also inspired a generation of shark scientists

Human fear of sharks has deep roots. Written works and art from the ancient world contain references to sharks preying on sailors as early as the eighth century B.C.E.

Relayed back to land, stories about shark encounters have been embellished and amplified. Together with the fact that from time to time – very rarely – sharks bite humans, people have been primed for centuries to imagine terrifying situations at sea.

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Is AI a major drain on the world's energy supply?

When Google announced this week that its climate emissions had risen by 48 percent since 2019, it pointed the finger at artificial intelligence.

US tech firms are building vast networks of data centres across the globe and say AI is fuelling the growth, throwing the spotlight on the amount of energy the technology is sucking up and its impact on the environment.

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Even short trips to space can change an astronaut’s biology

Only about 600 people have ever traveled to space. The vast majority of astronauts over the past six decades have been middle-aged men on short-duration missions of fewer than 20 days.

Today, with private, commercial and multinational spaceflight providers and flyers entering the market, we are witnessing a new era of human spaceflight. Missions have ranged from minutes, hours and days to months.

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Why is Amazon building a $2 billion cloud for Australia’s military intelligence

Amazon has secured a A$2 billion contract with the Australian Signals Directorate – the agency responsible for foreign signals intelligence and information security. A local subsidiary of Amazon Web Services will build a Top Secret Cloud to provide secure data storage for military intelligence.

The deal will securely manage top secret data vital to Australia’s national security. This contract is expected to last over a decade. It will build three secure data centres at undisclosed locations in Australia.

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