Maybe. Perhaps. Possibly.

Scientists have a weird fantasy that life exists on Mars. But they use all kinds of qualifiers, disclaimers and caveats to protect themselves. There could POSSIBLY have been life 3 billion years ago under some OPTIMAL conditions. There COULD BE water under the surface IF the temperature was right. A Coke vending machine MIGHT be lurking behind that huge boulder IF the boulder was made of sponge. Latest one:

Pools of salty water might be able to exist just below the surface of Mars, planetary scientists believe.

Sigh.