资讯
18 小时
Space.com on MSNThe moon doesn't have a magnetic field, so why does it have magnetic rocks?While the moon once had a weak magnetic field generated by a small molten core, the team's research suggests it likely wouldn ...
17 小时
Astronomy on MSNAsteroids hitting the Moon may have spiked its magnetic fieldTwentieth-century explorations answered many questions about our satellite and its place in the solar system. But they also ...
There have been proposed hypotheses as to how the Moon could have developed a core dynamo. For instance, a 2022 analysis suggested that in the first billion years, when the Moon was covered in molten ...
Where did the moon's magnetism go? Scientists have puzzled over this question for decades, ever since orbiting spacecraft ...
Scientists may have solved the mystery of why the moon shows ancient signs of magnetism although it has no magnetic field today. An impact, such as from a large asteroid, could have generated a cloud ...
There should be rocks showing both impact shock and high magnetism located near the lunar South Pole on the far side of the ...
18 小时
ExtremeTech on MSNWhat Is Dark Matter and Why Is It Important?Dark matter is more than five times as abundant as all the visible matter in the universe. So why can't we see any of it?
A massive impact may have sent a shockwave through the moon, jolting rocks just as a magnetic spike peaked and leaving behind ...
19 小时
Live Science on MSNJupiter is shrinking and used to be twice as big, mind-boggling study revealsAstronomers have calculated that the gas giant Jupiter used to be twice as big as it is now, based on the odd orbits of two ...
Astronomers have discovered that the Jupiter, the largest planet in our Solar System, was once so big that it could have held ...
9 小时
WOODTV.com on MSNTips on body in barrel prompt lake search in mom’s 1978 vanishingDivers will return to a southwest Michigan lake to continue searching for the remains of a mom who vanished 47 years ago.
一些您可能无法访问的结果已被隐去。
显示无法访问的结果