科学与环境
Satellites leak noise that interferes with telescopes and GPS. Here's how to fix it
来源: Phys.org - latest science and technology news stories · 发布于
Less than a decade ago, there were about 2,000 operational satellites orbiting Earth. Today there are more than 15,000. Millions more are planned.
Less than a decade ago, there were about 2,000 operational satellites orbiting Earth. Today there are more than 15,000. Millions more are planned.
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Meteors don't just burn up. What really happens is far more violent
Scientists have uncovered seven surprising stages that space rocks go through as they hurtle toward Earth, revealing that melting and violent fragmentation, rather than simple evaporation, determine their fate. The discovery could help explain why meteorites scatter across the gr
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Scientists discover a hidden oxygen reservoir deep inside Earth
Scientists have discovered that magma deep inside Earth can store surprising amounts of extra oxygen, potentially revealing a hidden contributor to our planet's oxygen-rich atmosphere. The findings suggest that ancient volcanic eruptions may have helped transform Earth's atmosphe
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Wild animals can now GPS-collar themselves for research
For six decades, wildlife researchers have faced a persistent challenge: to attach a tracking device to study a wild animal, they first have to catch it. Now, a new approach developed at the Norwegian University of Life Sciences (NMBU) allows GPS collars to be deployed autonomous
Phys.org - latest science and technology news stories ·
Scientists confirm global warming is accelerating faster than ever recorded
Earth is warming faster than ever recorded, with scientists detecting a major acceleration in global temperatures since around 2015. A new study reveals that the warming rate has surged to approximately 0.35°C per decade, nearly double the average pace observed from 1970 to 2015.
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A mysterious star system just 16 light-years away may be hiding habitable planets
Astronomers have solved a 170-year-old planetary mystery in a nearby two-star system, discovering that a mysterious wobble was caused by stellar activity rather than a giant planet. Although Jupiter-sized worlds have been ruled out in key regions, smaller, potentially habitable p
All Top News -- ScienceDaily ·