It’s the most mysterious signal ever received from space – a weird 72-second radio burst which many have claimed is proof of alien life. But now a scientist believes he might have cracked the mystery ...

In 1970, scientists identified a meteor-like object that had entered our Solar System. The US probe Mariner 10 was returning from an unrelated mission to photograph Saturn when it passed the object.

One of the mysteries of space has been perplexing scientists for the last 40 years. Back in 1977, astronomer Jerry Ehman received such a strong radio signal coming in from the heavens, he wrote the ...