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Rocket launches and reentries harm Earth's ozone layer
Rocket launches and reentries harm Earth's ozone layer Gaby Clark Scientific Editor Andrew Zinin Lead Editor The space industry is surging. In coming years, nearly 10,000 spacecraft are slated to launch into low-Earth orbit for a variety of purposes, such as global surveillance, space tourism, and satellite "megaconstellations" providing internet service. Rocket engine exhaust, as well as the burnup of inactive satellites and rocket parts reentering Earth's atmosphere, releases a suite of...
How Artemis II livestreamed hi-def videos and images from the moon to Earth
How Artemis II livestreamed hi-def videos and images from the moon to Earth Gaby Clark Scientific Editor Robert Egan Associate Editor This April, humanity had front-row seats to space as the Artemis II Orion spacecraft transmitted crystal-clear footage of its historic journey around the moon from more than 250,000 miles (about 402,000 kilometers) back to Earth at speeds on par with home internet connections. The livestreaming of high-definition video and high-resolution photos of the moon...
Cosmic bombardment may have opened Earth's crust for prebiotic chemistry
Cosmic bombardment may have opened Earth's crust for prebiotic chemistry Gaby Clark Scientific Editor Robert Egan Associate Editor Asteroids and planetesimals regularly bombarded Earth between about 4.6 billion and 3.5 billion years ago, during the Hadean and Archean eons. Because few rocks today are more than 4 billion years old, our understanding of the planet's environment during that time is limited. However, samples from the moon and its cratered surface hint at the period's rate of...
Climate change may shift hailstorms toward Earth's poles—new study
Climate change may shift hailstorms toward Earth's poles—new study Gaby Clark Scientific Editor Andrew Zinin Lead Editor Everyone has a storm story—whether it's that time you just escaped a downpour, or the hailstorm that wrote off your car. Even though hailstorms are relatively rare, they cause significant damage. Two new studies shed light on how hail might change as the world warms.
Understanding Earth's hidden east-west symmetry could improve climate models
June 4, 2026 report Understanding Earth's hidden east-west symmetry could improve climate models Paul Arnold Author Gaby Clark Scientific Editor Robert Egan Associate Editor Earth is divided into two halves: the Northern and Southern Hemispheres. Both reflect equal amounts of sunlight (albedo) even though they have different landmasses and weather patterns, especially cloud distribution. Why this is so is an ongoing mystery waiting to be solved.
How a small amount of rare earth metal shapes the environmental impact of magnets
How a small amount of rare earth metal shapes the environmental impact of magnets Gaby Clark Scientific Editor Robert Egan Associate Editor Magnets for electric cars and wind turbines contain only a small amount of the rare earth metal dysprosium. Yet, this metal is responsible for a large share of the environmental impact and costs, according to research by environmental scientists Stellina Samuel, Robert Istrate and René Kleijn. The study is published in the journal Sustainable Production...
Fossil fishes buried in the desert reveal a missing chapter in marine history
Fossil fishes buried in the desert reveal a missing chapter in marine history Gaby Clark Scientific Editor Andrew Zinin Lead Editor When an asteroid struck Earth about 66 million years ago, it ended the age of dinosaurs and transformed life across the planet. The effects of that catastrophe are visible in the fossil record on land, but scientists know far less about what happened to fishes in the seas during the first few million years after the extinction. Like many people during the...
Atmosphere survival model refines search for habitable planets
Atmosphere survival model refines search for habitable planets Gaby Clark Scientific Editor Robert Egan Associate Editor Researchers have developed the Smaller Than Earth Habitability Model (STEHM) to assess which planets can maintain life-supporting atmospheres, focusing on size and atmospheric dynamics. Since 1992, NASA has confirmed the existence of over 6,000 planets outside of our solar system, and over 7,000 suspected planets still await confirmation. These distant planets, dubbed...
Hidden meltwater found deep in Antarctic coastal waters reveals stronger climate impacts
June 5, 2026 feature Hidden meltwater found deep in Antarctic coastal waters reveals stronger climate impacts Hannah Bird Author Gaby Clark Scientific Editor Robert Egan Associate Editor Freshwater from melting Antarctic glaciers may be influencing the Southern Ocean in ways scientists have largely overlooked. New research, published in Frontiers in Marine Science, has found that glacial meltwater is not confined to the ocean's surface, as previously assumed, but can also be detected much...
Volcanic eruptions linked to rising famine risk across China's history
June 6, 2026 feature Volcanic eruptions linked to rising famine risk across China's history Hannah Bird Author Gaby Clark Scientific Editor Robert Egan Associate Editor Large volcanic eruptions may have played a bigger role in triggering historical famines across China than previously understood, according to a new study that traced links between eruptions, climate disruption, and food shortages over more than four centuries. By analyzing historical records from 1440 to 1900, Richard Warren...