Why Was Mars's Underground Lake So Hard to Find? - Breaking News!

A team of scientists discovered a 20 km wide liquid water lake beneath Mars' surface, using radar data from the Mars Express orbiter. This finding is significant as it suggests more water than previously evidenced on Mars. The study faced challenges due to Mars' freezing temperatures, but the presence of perchlorates, which lower water's freezing point, makes the existence of liquid water more plausible. Further exploration is needed to confirm these findings and explore potential life, but current planetary protection laws limit direct sampling.

What significant discovery did scientists announce regarding Mars?

• A new type of rock formation

• A large lake of liquid water

• Evidence of ancient Martian life

• A new atmospheric gas

Which instrument was used to detect the liquid water on Mars?

• Mars Rover

• Hubble Space Telescope

• Voyager 1

• MARSIS on Mars Express

What did the radar echoes detected by MARSIS suggest?

• Discovery of Martian vegetation

• Existence of a subsurface liquid water lake

• New atmospheric phenomena

• Presence of volcanic activity

How do perchlorates affect the freezing point of water on Mars?

• They lower it significantly

• They have no effect

• They make it evaporate

• They raise it to 100 degrees Celsius

What is a potential next step in exploring Mars' subsurface water?

• Building a more sensitive radar-equipped orbiter

• Using telescopes from Earth

• Launching a new Mars rover

• Sending humans to Mars