Summary:
- This article discusses a new study that found evidence of a massive underground reservoir of water on Mars, which could have implications for the potential for life on the planet.
- The study analyzed data from the European Space Agency's Mars Express spacecraft and found that the reservoir is located under the south polar ice cap and is about 12 miles wide.
- The presence of this large underground water source suggests that Mars may have been more hospitable to life in the past, and could provide a valuable resource for future human exploration of the planet.