+
upworthy

supernova

How fast is a star?

Though the stars in the sky seem pretty fixed, they're actually all moving relative to each other. You just can't tell because they're so far away. Even the constellations are only temporary — in another 50,000 years, they may look very different!

No two stars are moving the exact same way, either. Some move at very different speeds, which means that while some stars are like this:

Keep ReadingShow less