Tardigrades selected among 1st species to leave solar system
NASA-backed Starlight program has selected tardigrades and a roundworm species as Earth's first interstellar voyagers who would exit the solar system on a laser-powered spacecraft. Tardigrades, also called water bears, are regarded as the most resilient life forms on Earth. The eight-legged micro-animal can survive for 30 years without food or water and endure temperatures from -270ÂºC to 150ÂºC.