NASA is scheduled to probe the Jovian moon in 2023.

We’ve been looking for life on Earth-like planets. Will Europa teach us better?

Ever notice how pretty much all superhero movies are origins stories? Everyone wants to know how Batman and Wolverine and the Hulk became who they are. But there aren’t too many superhero-in-old-age stories out there, with balding, hunchbacked super-oldsters hobbling around assisted-living homes. The same goes for the Solar System. The question of how the […]

Imagine that two very similar-looking neighbors undergo a genetic test. The exam shows that the pair’s genetic fingerprints are virtually identical. They feel a flash of shock and excitement. What does this mean? Could they be long-lost twins, separated in a hospital mixup? The Earth and Moon share a similar issue, one that poses a […]

Ellie Arroway (Jodie Foster) uses the VLA (Very Large Array) to look for alien signals. But that’s not the only way. Warner Brothers When people think about SETI, the Search for Extraterrestrial Intelligence, they imagine messages sent via radio—Jodie Foster tuning antennas, hoping to pick up signals from the “billions and billions” of star systems […]