The company is seeking F.C.C. approval to test an idea to reflect sunlight to Earth at night, possibly powering solar panels. Critics say it could be bad for people and wildlife. By Kenneth Chang and ...
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Astronomers have for the first time seen the birth of a magnetar—a highly magnetized, spinning neutron star—and confirmed that it's the power source behind some of the brightest exploding stars in the ...
Infrared observations from the James Webb Space Telescope confirm asteroid 2024 YR4 will safely pass about 21,200 km above the Moon in December 2032.