The Ocean on Enceladus is Really Big

The video discusses the discovery of a global ocean on Saturn's moon Enceladus, revealed by Cassini data. This ocean, sandwiched between the moon's rocky core and icy crust, could be 26-31 km deep. The presence of water and chemical activity suggests potential for life. The video also covers the International Space Station's milestone with astronauts Scott Kelly and Mikhail Kornyenko's year-long mission, studying long-term space travel effects and astronaut psychology, particularly the third quarter phenomenon.

What did the Cassini probe discover on Enceladus in 2005?

• A new type of rock

• Plumes of water vapor

• A volcanic eruption

• A new moon

What is the significance of Enceladus's libration in scientific studies?

• It helps measure the moon's temperature

• It suggests a subsurface ocean

• It shows the moon's distance from Saturn

• It indicates the presence of a magnetic field

How deep is the ocean believed to be on Enceladus?

• 5 to 10 kilometers

• 26 to 31 kilometers

• 50 to 60 kilometers

• 100 to 150 kilometers

What is the main focus of the year-long mission on the International Space Station?

• Exploring the surface of Mars

• Testing new spacecraft technology

• Developing new space food

• Studying the effects of long-term space travel

What psychological phenomenon did astronaut Scott Kelly experience during his previous space mission?

• Fourth quarter phenomenon

• Third quarter phenomenon

• Second quarter phenomenon

• First quarter phenomenon