Conventional images of the Earth and the moon place them close together, the moon hovering, seemingly, right over our planet's shoulder. Of course, this isn't accurate; we know just from looking at ...
The solar system is moving through space over three times as fast as estimated, calling into question our best model of the universe and its evolution.
Embed <iframe src="https://www.npr.org/player/embed/1297006/1297007" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player"> We'll ...