Speedroo

How fast can a solar eruption travel?

6.71 million mphAbout 10.8 million km/h · Cosmic

The fastest coronal mass ejections race out at nearly 6.7 million mph (3,000 km/s), reaching Earth in under a day.

That's about 190,000 times a red kangaroo's top speed of about 35 mph (56 km/h).

6.71 million mph
the Sun's galactic orbit

By speed: a solar eruption is about 13× faster than the Sun's galactic orbit.

Think you can guess? Play today's Speedroo

Things about as fast

Many real things vary, so we use a typical or official figure. Spotted a mistake? Email [email protected].