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Astronomers find a “cataclysmic” pair of stars with the shortest orbit yet（图）
“灾难性”恒星 恒星 双星系统
2023/6/9
Nearly half the stars in our galaxy are solitary like the sun. The other half comprises stars that circle other stars, in pairs and multiples, with orbits so tight that some stellar systems could fit ...
Astronomers discover a rare “black widow” binary, with the shortest orbit yet（图）
“黑寡妇”双星 恒星 伴星环 银河系
2023/6/9
The flashing of a nearby star has drawn MIT astronomers to a new and mysterious system 3,000 light years from Earth. The stellar oddity appears to be a new “black widow binary” — a rapidly spinning ne...
Driven by Earth's orbit, climate changes in Africa may have aided human migration（图）
Driven by Earth's orbit climate changes Africa may aided human migration
2020/2/20
In 1961, John Kutzbach, then a recent college graduate, was stationed in France as an aviation weather forecaster for the U.S. Air Force. There, he found himself exploring the storied caves of Dordogn...
Planet Formation in Earth-like Orbit around a Young Star
Planet Formation Earth Young Star
2016/4/13
The disks of dust and gas that surround young stars are the formation sites of planets. New images from the Atacama Large Millimeter/submillimeter Array (ALMA) reveal never-before-seen detai...
The Japanese Space Agency, JAXA, has launched an investigation into a failed attempt to put a craft into orbit around Venus. Akatsuki, which blasted off in May, was due to study Venus's violent atmosp...
Sun's appetite for dark matter may affect Earth's orbit（图）
Sun's appetite dark matter Earth's orbit
2010/1/26
Calculations made by a physicist in Italy suggest that the Sun is sucking up significant quantities of dark matter and this is causing observable changes to Earth's orbit. This latest research predict...