科学与环境
'I heard a barnacle'—how paying attention to nature's background noise can reveal animal secrets
来源: Phys.org - latest science and technology news stories · 发布于
During four days on Washington's Olympic Peninsula, I saw an Olympic marmot, a species found nowhere else on Earth; four bumblebee species working the same lavender plant; three western hermit crab species new to me; and five orcas slicing through the dark water off Ediz Hook. An
During four days on Washington's Olympic Peninsula, I saw an Olympic marmot, a species found nowhere else on Earth; four bumblebee species working the same lavender plant; three western hermit crab species new to me; and five orcas slicing through the dark water off Ediz Hook. Any one of them could have been the trip's highlight.
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NASA’s Swift telescope falls to Earth after nearly 22 years in space
After nearly 22 years of exploring the universe’s most violent explosions, NASA’s Swift Observatory has re-entered Earth’s atmosphere over Indonesia. Originally designed to last just two years, the pioneering space telescope transformed our understanding of black holes, exploding
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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
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NASA discovers Jupiter’s invisible shield is more complex than Earth’s
NASA’s Juno spacecraft has discovered that Jupiter uses a surprisingly complex system of powerful plasma waves and multiple shock regions to defend against the solar wind. The findings reveal major differences between Jupiter and Earth and could help scientists understand the eno
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Mission blasts off for Mars to grab a piece of its moon
A spacecraft is set to launch on an ambitious mission to bring 10g of Martian moon dust back to Earth.
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You know the launch market is tough when satellite companies start building rockets
There are optimistic plans for spaceflight, and then there are optimistic plans. AST SpaceMobile is a Texas-based, publicly traded company building very large satellites to provide direct-to-cell communications on Earth. But it has been having trouble finding rides to space. So o
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