Quiz of the week: What dropped a hint we might not be alone?

It's the weekly news quiz - how closely have you been paying attention to what's been going on in the world over the past seven days?

Some mobile users may be experiencing difficulties. If you cannot see the quiz, try this link.

Try last week's quiz via this link or have a go at something from the archives.

Compiled by Ben Fell

What information do we collect from this quiz? Privacy notice.

Sign up for our morning newsletter and get BBC News in your inbox.