sky

When I first saw the dark sky, it was completely by accident.

All the stars in the night sky are suns.

What's huge and just hanging out in the sky already?

We usually associate hot summers with cloudless blue skies, but in fact clouds play a big part in the climate, as Kate Marvel explained to the BBC World Service.

REPORTER: Many fans erupting even in the skies.

Wemby could swat you out of the sky.

This is relatively recent compared to the galaxy’s 13-billion-year lifespan, and means our early ancestors might have even witnessed the powerful event, as a gigantic ball of heated mass illuminating the night sky.