After the devastating fire at Notre Dame, two mystery bodies were found buried beneath the floors. One belonged to a known figure, and the other was shrouded in mystery. Who were they, and what do these ancient burials tell us about Notre Dame’s past?

Space elevators? Nuclear rockets? The future of space travel could look radically different.

This robot is equipped with sensors, microphones and cameras to record ocean sounds and find healthy coral reefs. If it succeeds, the robot could provide an efficient and cost-effective way to find thriving coral reefs, map them and monitor their health.

Mysterious bodies are found under one of the world’s most famous cathedrals.

This artificial nose aims to detect spoiled food before it gets shipped to markets.

Over 80 percent of the oceans remain unexplored and untouched. But one team of engineers is designing an innovative, safe submersible to explore thousands of feet below the surface.

Scientists are working on the next generation of inflatable habitats that would allow people to live and work in space, and on the Moon or Mars. But before it can be deployed in space, they must make sure it can withstand significantly higher pressures.

Harvard scientists are using sensory feedback to help medical patients with muscle spasticity move more smoothly.

It’s an age-old question: Do aliens exist? And what are the odds we’ll make contact?

Haumea is one of the fastest rotating large objects in our solar system.