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The cave painting is considered to be the world's oldest record of two people kissing.

Image emerged at a moment in the space race.

To this day, no one knows for sure what happened to the first English settlement in America.

One of the most important sites investigated in the region of ancient Anatolia.

The biohybrid robot is half electronic and half organic, and could be the first step towards something bigger.

The asteroid's strange orbit may be the work of the gravity of an unknown planet.

Scientists believe they may have glimpsed a parallel universe crashing into our own.

An earthquake damaged a pyramid in Mexico and revealed the surprise.