00:00Mars is losing its ice,
00:02and scientists have just uncovered chilling evidence
00:04of how it happened over millions of years.
00:06A new study reveals that Mars went through multiple ice ages,
00:10but with each one, the planet got drier.
00:13Researchers studied ancient craters
00:15using high-rise images from NASA's Mars Reconnaissance Orbiter.
00:19They were hunting for signs of glaciers, and they found them.
00:22Ridges, moraines, and a strange brain terrain hinted at a frozen past.
00:27The twist?
00:28These ice ages weren't like Earth's.
00:30They were caused by dramatic shifts in Mars' tilt.
00:33Each time the planet tilted, sunlight hit different regions,
00:37triggering ice growth or melt.
00:39But here's the catch.
00:40With every cycle, less ice returned.
00:43The glaciers shrank and never fully bounced back.
00:46Over 600 million years, Mars slowly dried out.
00:49These icy time capsules don't just reveal the planet's past.
00:53They could point to hidden water sources for future astronauts.
00:56Mars' icy secrets are melting away, but not before telling their story.
01:01photographic
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