资讯

There’s a long cycle of approximately 60 years, and a shorter cycle with a period of variation of just 12 years. The less ...
Nisar is the first satellite in the world to use dual-frequency radar — L-band (NASA) and S-band synthetic aperture radar ...
Juno spacecraft data suggest an extreme compression of the planet’s magnetosphere in December 2022, caused by the solar wind, ...
The Moon might look like it’s just hanging around up there, but it’s actually on a constant loop around Earth, […] ...