Category Science

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NASA Begins Building Dragonfly Drone; Nuclear-Powered ‘Octocopter’ Enters Testing Ahead of 2028 Launch

NASA has begun construction of the Dragonfly mission, which will utilise a nuclear-powered rotorcraft lander to investigate Saturn's largest moon, Titan. The car-sized drone is scheduled to launch in 2028 and will conduct a comprehensive surface survey using its Multi-Mission Radioisotope Thermoelectric Generator (MMRTG). The spacecraft will complete a six-year cruise...

Scientists Trace Rare Cosmic Outburst to a Massive Planetary Collision Around Gaia20ehk

Astronomers have reported evidence of two planets colliding around a distant Sun-like star, Gaia20ehk, located about 11,000 light-years away. The star's light output remained steady until 2016, when it exhibited three minor dimming events; by 2021, the light curve reportedly "went completely bonkers." Follow-up infrared observations revealed a burst of heat coinciding...

‘My ideas are a little revolutionary’: ecologist Suzanne Simard on intelligent forests, the climate and her critics

Her research popularised the idea of the wood wide web, but the scientific backlash was brutal. As the author of The Mother Tree returns to the forest in a new book, she discusses her battle to reimagine our relationship with nature

In 2018, the ecologist and writer Suzanne Simard was conducting research in the forested Caribou Mountains of western Canada when a thunderstorm rolled in. She was with her two teenage daughters and her close friend and colleague, Jean Roach. They saw flashes of lightning, heard a loud rumble and then they smelled smoke. They were forced to run the half kilometre back to Simard’s truck as the trees behind them caught alight and the air grew thick. As they ran, animals burst out of the forest: a deer, a rabbit, a grey wolf. They reached the truck with no time to spare, all four of them covered in soot and dirt. Overhead, helicopters began circling the orange-black air, dropping water on the flames below.

Wildfires have become an ever bigger problem in Canada. The 2018 wildfires were the biggest in British Columbia’s history, but this record was broken in 2021, and then again in 2023, when fires consumed an area three times the size of the Canadian province of Nova Scotia and the smoke travelled as far as New York City. The cause is not only global heating, which has brought hotter, dryer summers, but also the changing makeup of the forest. When logging companies clear forest, they replant it with fast-growing conifer species, but these trees are much more flammable than Canada’s diverse, native forest.

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James Webb Telescope Captures Rare Infrared Footprints of Io and Ganymede Inside Jupiter’s Auroras

Jupiter produces the strongest auroras in the solar system. These features glow brightly around its poles as energetic particles crash into the giant planet's atmosphere. New observations have now revealed that Jupiter's moons can disturb this glowing display in unexpected ways. Scientists using the James Webb Space Telescope (JWST) have identified unusual "cold footp...