Chances of asteroid striking Earth in the next decade has nearly doubled, NASA says
The chances of an asteroid striking Earth within the next decade has doubled in a matter of weeks, according to NASA ...
Live Science1 个月
Top-secret X-37B space plane has been in orbit for more than 1 year
The Space Force's top-secret aircraft has been in a highly elliptical high Earth orbit since December 2023. When you purchase through links on our site, we may earn an affiliate commission.
Optics4 天
Exail enables gigabit-speed Earth-to-space optical communications
Exail has also developed a strong experience in manufacturing free-space optical coherent detectors for both terrestrial and ...
SpaceX launches Maxar 3 mission, high-resolution commercial satellites
Feb. 4 (UPI) --SpaceX launched its Maxar 3 mission, with two high-resolution commercial satellites on board, from the Kennedy ...
来自MSN1 个月
Earth, the sun and a bike wheel: Why your high-school textbook was wrong about the shape of ...
So, Earth's orbit only has a relatively tiny deviation from perfect circularity. But why is it so often shown as practically an egg shape? And how can we visualize the real situation? In order to ...