Science

Depression, schizophrenia and bipolar disorder linked with ancient viral DNA in our genome

Around 8% of human DNA is made up of genetic sequences acquired from ancient viruses. These sequences, known as human endogenous retroviruses (or Hervs), date back hundreds of thousands to millions of years – with some even predating the emergence of Homo sapiens.

Our latest research suggests that some ancient viral DNA sequences in the human genome play a role in susceptibility to psychiatric disorders such as schizophrenia, bipolar disorder and major depressive disorder.

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NASA’s asteroid sample mission gave scientists opportunity to study an artificial meteor

Earth is constantly bombarded by fragments of rock and ice, also known as meteoroids, from outer space. Most of the meteoroids are as tiny as grains of sand and small pebbles, and they completely burn up high in the atmosphere. You can see meteoroids larger than about a golf ball when they light up as meteors or shooting stars on a dark, clear night.

While very small meteoroids are common, larger ones – bigger than a dishwasher – are not.

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Apple to break AI silence at developers conference

Apple on Monday will attempt to persuade doubters on its AI strategy after rivals raced ahead in adopting artificial intelligence.

AI and perhaps even a partnership with ChatGPT-maker OpenAI will likely be a driving theme at the kickoff of Apple's WWDC developers' conference in Silicon Valley, according to analysts.

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India's heatwave longest ever, worse to come

India's heatwave is the longest ever to hit the country, the government's top weather expert said Monday as he warned people will face increasingly oppressive temperatures.

Parts of northern India have been gripped by a heatwave since mid-May, with temperatures soaring over 45 degrees Celsius (113 degrees Fahrenheit).

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Wild horse species returns to the Kazakh steppes

After a few hesitant steps following a long flight from Prague, three Przewalski horses galloped off for the first time into the Kazakh steppe -- the native habitat of this endangered species.

The horses emerged after being locked in containers for 20 hours and are the first of 40 which are to be released into the wild in this vast Central Asian country over the next five years.

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Inside the global orange juice crisis

Oranges – and all the things we can make from them – are big business. But the industry is facing a severe crisis.

About 50 million tonnes of oranges are grown each year, 34% of them in Brazil. Brazil is also the world’s biggest exporter of orange juice by far, producing about 70% of global supply.

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Deadly heat: Record scorching temperatures kill the vulnerable and worsen inequality

Deadly heat. As we enter the month of June, scorching temperatures are already gripping parts of Arizona, California, Nevada, as well as countries around the world. In Arizona, extreme heat sent 11 people to the hospital as thousands waited to enter a campaign rally with Donald Trump. In India, 33 poll workers died from heatstroke on a single day last week during India’s national elections. In Mexico, it’s so hot, howler monkeys are falling dead from the trees. Data confirmed last month was the hottest May on record, putting the Earth on a 12-month streak of record-scorching and -breaking temperatures.

Meanwhile, a new report has found the rate Earth is warming hit an all-time high last year, with 92% of 2023 record heat caused by humans. On Wednesday, the World Meteorological Organization announced there’s an 80% chance the average global temperature will exceed 1.5 degrees Celsius above preindustrial levels for at least one of the next five years.

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Records of Pompeii’s survivors discovered

On Aug. 24, in A.D. 79, Mount Vesuvius erupted, shooting over 3 cubic miles of debris up to 20 miles (32.1 kilometers) in the air. As the ash and rock fell to Earth, it buried the ancient cities of Pompeii and Herculaneum.

According to most modern accounts, the story pretty much ends there: Both cities were wiped out, their people frozen in time.

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Apollo 8 astronaut dies in small plane crash at age 90

William Anders, the former US astronaut who took the historic "Earthrise" photo from space over 55 years ago, died in a plane crash on Friday at the age of 90, his family said.

Anders had been piloting a small plane which crashed off the coast of Washington state on Friday morning, his son told US media. Anders was alone in the plane.

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Virgin Galactic set for final spaceflight before two-year pause

Virgin Galactic is poised on Saturday for its last spaceflight before heading into a two-year pause on commercial operations to upgrade its fleet, as the company seeks to finally turn a profit.

The "Galactic 07" mission is scheduled to begin at around 8:30 am Mountain Time (1430 GMT) from the company's base in Spaceport, New Mexico, a spokesman said.

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Scientists and Indigenous leaders team up to conserve seals

Five hundred years ago, in a mountain-rimmed ocean fjord in southeast Alaska, Tlingit hunters armed with bone-tipped harpoons eased their canoes through chunks of floating ice, stalking seals near Sít Tlein (Hubbard) glacier. They must have glanced nervously up at the glacier’s looming, fractured face, aware that cascades of ice could thunder down and imperil the boats – and their lives. As they drew near, they would have asked the seals to give themselves as food for the people and talked to the spirit of Sít Tlein to release the animals from his care.

Tlingit elders in the Alaska Native village of Yakutat today describe their ancestors’ daring pursuit of harbor seals, or “tsaa,” and the people’s respect for the spirits of the mountains, glaciers, ocean and animals of their subarctic world.

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Extreme early-summer heatwave peaks in western U.S.

An extreme early-summer heatwave was expected to peak Thursday across much of the western United States, where millions were scrambling to cope with the sudden sharp rise in temperatures.

Las Vegas was baking in 111 degrees Fahrenheit (44 degrees Celsius) heat, while in the Death Valley desert the mercury was expected to shoot past 120F, due to an oppressive high-pressure weather system smothering the region.

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