moving articles

Why did I just see a line of stars moving?

That sudden appearance of a perfectly straight, evenly spaced line of bright dots marching silently across the dark sky ...

Are all galaxies moving apart?

The simple answer to whether all galaxies are moving apart is a definitive no, although the vast majority are receding f...

How fast is our Galaxy cluster moving?

The cosmos is a place defined by motion. For us living on Earth, accustomed to the comforting stability of our surroundi...