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white surface on mars with a dark hole near the center that could be a portal to an underground lava tube
This 2022 image taken by the HiRISE camera onboard NASA's Mars Reconnaissance Orbiter has reignited the conversation around these mysterious holes on Mars.

NASA/JPL-Caltech/UArizona

  • Scientists have known about Mars holes for years but an old image has reignited interest. 
  • These holes could contain evidence of alien life on Mars and be a shelter for future astronauts.
  • But there are still many questions about how deep these holes are and where they lead.

In case you hadn't heard, there's a hole on Mars — multiple holes, actually. These holes, or pits, aren't news. Here's a photo of one from 2007:

Tags
Science, NASA, Mars, volcano, Astronauts, extraterrestrial-life
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A mysterious hole on Mars could be a jackpot of scientific discoveries, from ex…