When you first see the new renderings, you’ll assume you’re looking at an ancient version of Earth. But these new images actually depict what Mars could have looked like about 4.3 billion years ago.

The animations are a product of , who aimed to find how much water a primitive version of the Red Planet could have held.

According to the study,s published in on March 5, Mars could have held as much water as Earth’s Arctic Ocean.

“Our study provides a solid estimate of how much water Mars once had, by determining how much water was lost to space,” , a scientist at NASA’s Goddard Space Flight Center said in a news release.

Why is water content important? NASA explains it’s all about an even larger question: Is there life on Mars?

“With Mars losing that much water, the planet was very likely wet for a longer period of time than was previously thought, suggesting it might have been habitable for longer,” said Michael Mumma, a senior scientist at Goddard and the second author on the paper.

Matt Sampson has more the study in the video above.

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April 24 marks the 25th anniversary of the Hubble Telescope. To celebrate, NASA and the European Space Agency, which jointly run the telecope, released this image of the star cluster Westerlund 2. (NASA/ESA/Hubble Heritage Team/A. Nota/Westerlund 2 Science Team)