NASA | Measuring Mars' Ancient Ocean

The video explores Mars' ancient climate, suggesting it was once warmer and wetter. NASA researchers used infrared telescopes to study water molecules in Mars' atmosphere, revealing significant water loss over time. The findings indicate that only 13% of an ancient ocean remains, with 87% lost to space. This ocean once covered 20% of Mars' surface, comparable in depth to the Mediterranean Sea. The study suggests Mars was habitable for longer than previously thought, expanding the potential for ancient life.

What was the primary method used by NASA's Goddard Space Flight Center to study water molecules in the Martian atmosphere?

• Infrared telescopes on Earth

• Mars rovers

• Satellite imagery

• Seismic activity analysis

What percentage of Mars's ancient ocean is estimated to remain today?

• 50%

• 25%

• 13%

• 87%

How deep was the ancient Martian ocean compared to Earth's oceans?

• Shallower than the Atlantic Ocean

• Deeper than the Pacific Ocean

• As deep as the Mariana Trench

• Comparable to the Mediterranean Sea

What caused the ancient Martian ocean to shrink and recede northward?

• Increased solar radiation

• Meteor impacts

• Loss of atmosphere and pressure

• Volcanic eruptions

How does the new understanding of Mars's water history affect the possibility of ancient life on the planet?

• It confirms Mars had no water

• It opens up the possibility of ancient habitability

• It indicates Mars was wet for a shorter time

• It suggests Mars was never habitable