- NASA has detected some building blocks for life on the moons of Saturn and Jupiter
- Leroy Chiao: There is likely intelligent life somewhere in universe, but humans will never breach distance to find it
Leroy Chiao is a former NASA astronaut. During his 15-year career, he flew four missions into space, three times on space shuttles and once as the copilot of a Russian Soyuz spacecraft to the International Space Station. On that flight, he served as the commander of Expedition 10, a six-and-a-half month mission. He has performed six spacewalks, in both US and Russian spacesuits, and has logged nearly 230 days in space. The opinions expressed in this commentary are solely those of the author.
(CNN)NASA announced this week exciting results from a spacecraft observing Saturn's moon Enceladus and Jupiter's moon Europa. Equipment on the Cassini probe detected some of the required conditions and building blocks for life on both moons.