What scientists found may change how we see Mars.

For decades, Mars has been described as a frozen desert that lost its chance for life very early in its history. That familiar picture is now facing new questions. A growing collection of clues from rovers, meteorites, and planetary scans is beginning to suggest the Red Planet may not have followed the simple path scientists once imagined. Ancient rocks, hidden water reservoirs, and unusual chemical signatures are pointing toward a past that looks more complex than expected. Some of the newest evidence hints that Mars may have remained habitable far longer than researchers believed. As these discoveries accumulate, the story of Mars is starting to shift.



