Tardigrades: Adorable Extremophiles

The video explores the concept of the toughest animal on Earth, revealing it to be the tardigrade, known for its extreme resilience. Tardigrades can survive harsh conditions, including space, making them key to understanding life's origins. Experiments by NASA and ESA have shown their ability to endure space's vacuum, supporting the panspermia hypothesis, which suggests life can spread across planets. Tardigrades' unique traits make them a valuable subject for scientific study.

Why are tardigrades considered extremophiles?

Describe the experiment conducted by NASA involving tardigrades.