SCIENCE

Covid-19 remains a threat as a virus variant has been spreading steadily around the globe, the World Health Organisation said Tuesday.

Nearly five times more people will likely die due to extreme heat in the coming decades, an international team of experts warned on Wednesday, adding that without action on climate change the "health of humanity is at grave risk".

Scientists proposed a novel idea on Wednesday that could solve two of the world's mysteries at once -- one that passes over our heads every night, and one that sits far below our feet.

Invasive species that wreck crops, ravage forests, spread disease, and upend ecosystems are spreading ever faster across the globe, and humanity has not been able to stem the tide, a major scientific assessment said Monday.

NASA has spotted a small new crater on the Moon that was likely caused by a Russian probe crash landing on the surface around two weeks ago.

Temperature records are being toppled across Asia, from India's summer to Australia's winter, authorities said Friday, in fresh evidence of the impact of climate change.

Air pollution is more dangerous to the health of the average person on planet Earth than smoking or alcohol, with the threat worsening in its global epicenter South Asia even as China fast improves, a study showed Tuesday.

A parasitic roundworm typically found in snakes has been pulled "alive and wriggling" from a woman's brain in a stomach-churning medical first, Australian doctors said Tuesday.

NASA and SpaceX's Dragon spacecraft blasted off on Saturday carrying four astronauts to the International Space Station.

India began exploring the Moon's surface with a rover on Thursday, a day after it became the first nation to land a craft near the largely unexplored lunar south pole.

From Quebec to British Columbia to Hawaii, North America is facing an extraordinary wildfire season -- and regions both near and far have found themselves increasingly blighted by smoke exposure.

India readied Wednesday for its latest attempted Moon landing, a historic moment for the world's most populous nation as it rapidly closes in on milestones set by global space powers.

Russia launched its first probe to the Moon in almost 50 years on Friday, a mission designed to give fresh impetus to its space sector, which has been struggling for years and become isolated by the conflict in Ukraine.

Russia's plan to launch its lunar lander on Friday is the latest in an international push to return to the Moon that includes the world's top powers but also new players.

Scientists have identified the maximum mix of heat and humidity a human body can survive.

The two men in bright overalls rooting for plastic on a Tunisian beach do so to make a living, but also in the knowledge that they are helping the environment.

July is on track to be the hottest month in recorded history, scientists confirmed Thursday, as UN chief Antonio Guterres warned Earth has moved into an "era of global boiling".

The world has been buffeted by fires, dire health warnings and broken temperature records in the past week.

July 2023 will probably be the world's hottest month in "hundreds, if not thousands, of years," top NASA climatologist Gavin Schmidt said Thursday.

The extreme heat in the northern hemisphere is putting an increasing strain on healthcare systems, hitting those least able to cope the hardest, the World Health Organization said Wednesday.

Human-made climate change is supercharging natural weather phenomena to drive heatwaves roasting Asia, Europe and North America that could make 2023 the hottest year since records began, scientists say.

Unforgiving heat scorched parts of the Northern Hemisphere on Monday, triggering health warnings and fanning wildfires in the latest stark reminder of the effects of global warming.

Jets of red gas bursting into the cosmos, and a glowing cave of dust: NASA unveiled a spectacular new image Wednesday depicting the birth of stars to mark the first anniversary of the James Webb Space Telescope's science operations.

Since 2009, a cloistered band of hard-rock geologists and other scientists have toiled on a mission of great consequence.

Under current policies, the planet will warm nearly twice that much by 2100, according to the UN's climate science advisory panel.

The Axiom 2 crew was led by retired NASA astronaut Peggy Whitson, 63, who holds the U.S. record for most time spent in orbit with 665 days in space over three long-duration missions to the ISS, including 10 spacewalks. Ax-2's designated pilot was John Shoffner, 67, an aviator, race car driver and investor from Alaska. Rounding out the crew as mission specialists were the first two astronauts from Saudi Arabia to fly aboard a private spacecraft - Ali Alqarni, 31, a fighter pilot for the Royal Saudi Air Force; and Rayyanah Barnawi, 34, a biomedical scientist in cancer stem-cell research.

Our species arose in Africa more than 300,000 years ago, with the oldest-known Homo sapiens fossils discovered at a site in Morocco called Jebel Irhoud, located between Marrakech and the Atlantic coast.

While the astronomers offered what they think is the most likely explanation for the explosion, they emphasised that more research was needed to understand the puzzling phenomenon.

Sultan Al Neyadi is expected to make the historic seven-hour spacewalk outside the International Space Station (ISS) on Friday.