共找到 20 条结果
Ocean heat plus human-caused global warming is a grim recipe for deadly climate extremes
A newly discovered meteor stream may be the smoking gun of an asteroid slowly disintegrating under the Sun’s intense heat。 Scientists say these fiery streaks across the night sky could reveal hidden near-Earth asteroids that telescopes struggle to detect
Astronomers have spotted something surprising in the far outer Solar System—a faint, short-lived atmosphere clinging to a tiny icy world that shouldn’t be able to hold one at all。 The object, called 2002 XV93, is far smaller than Pluto, yet observations during a rare stellar alignment revealed its presence through a subtle dimming of starlight。 Eve
The vacuum giveth, the vacuum taketh, but the vacuum doesn’t let you taketh
People confide almost everything to their phones
Scientists have uncovered a hidden mathematical secret inside the leaves of the Chinese money plant: a naturally occurring geometric pattern known as a Voronoi diagram, something typically associated with city planning, computer science, and network design。 By mapping tiny pores and looping veins in the plant’s leaves, researchers discovered that t
Cumberland, B。 is reimagining its coal mining past as a clean energy opportunity。 Water trapped in abandoned mine tunnels could be used in a geothermal system to heat and cool buildings efficiently and with minimal emissions
“This is a public trust and transparency issue
A bizarre planetary pairing 190 light-years away is challenging everything astronomers thought they knew about how worlds form。 A “lonely” hot Jupiter — typically found without nearby companions — is sharing its system with a smaller mini-Neptune tucked even closer to the star, a setup once thought nearly impossible
The Universe’s biggest black holes may not be born giants after all。 Scientists analyzing gravitational-wave signals from dozens of black hole collisions found evidence that the heaviest black holes are likely “cosmic recyclers” — formed through repeated smashups inside incredibly crowded star clusters。 These violent chain reactions appear to creat
A colossal valley near Mars’s equator is revealing dramatic clues about the Red Planet’s watery and volcanic past。 Stretching roughly 1,300 kilometers, Shalbatana Vallis was carved billions of years ago when enormous floods of groundwater burst onto the surface, gouging deep winding channels across the landscape。 Today, the region is a striking mix
A medieval monk may have beaten Edmond Halley to one of astronomy’s greatest discoveries by nearly 700 years。 Researchers say Eilmer of Malmesbury recognized that the blazing comet seen in 1066 was the same one he had witnessed in 989。 At the time, comets were viewed as terrifying omens tied to war and royal deaths, adding even more drama to the fa
Scientists have pulled off a mind-bending quantum experiment that sounds almost impossible: they showed that tiny metal particles made of thousands of atoms can exist in multiple places at once。 Using advanced laser techniques, researchers at the University of Vienna observed quantum interference in sodium nanoparticles far larger than the kinds of
The three-wheel, two-seat EV has been in development since 2006
Vaccines may be training a part of our immune system long thought to be untrainable
Researchers in Japan traced a hidden medieval solar storm using ancient tree rings and centuries-old sky observations。 The team linked reports of eerie red auroras with spikes of carbon-14 trapped in buried wood, revealing a powerful solar radiation event around 1200 CE。 The findings suggest the Sun was far more active at the time, with unusually s
A new study suggests AI chatbots may do more than spread misinformation — they can actively strengthen a user’s false beliefs。 Because conversational AI often validates and builds on what users say, it can make distorted memories, conspiracy theories, or delusions feel more believable and emotionally real。 Researchers warn that AI companions may be
A strange kind of matter that “ticks” forever without energy input has just taken a major leap toward real-world use。 Known as a time crystal, this quantum system repeats its motion endlessly—like a clock that never winds down—and scientists have now managed to connect it to an external device for the first time。 By linking the time crystal to a ti
One little mystery—solved
Publishers would have to offer "independent" play patch or refunds after server shutdowns