Researchers from Shenzhen University, China, have discovered eight potential water-carved caves on Mars — the first evidence of karstic caves formed by water dissolving rock, according to a paper in The Astrophysical Journal Letters. These caves could have once provided shelter for microbial life and may become prime targets for future Mars missions.

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* Discovery by Chenyu Ding and team, Shenzhen University, China.

* Study published in The Astrophysical Journal Letters.

* Found 8 cave-like pits (skylights) in Hebrus Valles region on Mars.

* Caves formed by water dissolving carbonate & sulfate rocks — not lava.

* First evidence of karstic caves on Mars, distinct from lava tubes.

* Analysis used data from NASA’s Mars Global Surveyor (TES).

* 3D models show collapse caused by water, not volcanic activity.

* Caves could have offered protection from dust storms & radiation.

* Scientists suggest they be priority targets for future missions.

* May serve as potential shelters for astronauts in future exploration.