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  • 3 months ago
Mars wasn’t always the dry, dusty world we see today. A groundbreaking new study reveals that the Red Planet experienced multiple ice ages over hundreds of millions of years — and with each one, it lost more ice than it regained. Using high-resolution images from NASA’s Mars Reconnaissance Orbiter, scientists found glacial landforms preserved in ancient craters. These icy “time capsules” not only reveal how Mars dried out but could also guide future explorers to hidden water sources beneath the surface.

How did Mars lose its water? And what does this mean for future missions? Watch to find out.
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Transcript
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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