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NASA Discovery Reveals Complex Water Systems on Early Mars

When NASA’s Perseverance rover reached the inner edge of Mars’ Jezero Crater in September 2023, mission scientists were surprised by what they found. Called the “Margin Unit,” the geologic area stretches along the shoreline of an ancient Martian lake, so they expected sedimentary rocks, which would have formed as layers of sand piled on top

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NASA Discovery Reveals Complex Water Systems on Early Mars

Owned by United States government. Added September 21, 2026 at 1:01 PM EDT.

When NASA’s Perseverance rover reached the inner edge of Mars’ Jezero Crater in September 2023, mission scientists were surprised by what they found. Called the “Margin Unit,” the geologic area stretches along the shoreline of an ancient Martian lake, so they expected sedimentary rocks, which would have formed as layers of sand piled on top

Marked as found on the page, exactly, September 22, 2026 at 11:31 PM EDT. The check history below is the evidence.

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When	Check	Result	Status	Detail
September 21, 2026 at 1:02 PM EDT to September 22, 2026 at 1:31 PM EDT	Link resolves	Passed	200	2 checks over about 25 hours, the same result every time. 200, text/html, 311583 characters, landed on https://www.nasa.gov/solar-system/planets/mars/nasa-discovery-reveals-complex-water-systems-on-early-mars/ The wording varied; every check is below. Every one of the 2 September 21, 2026 at 1:02 PM EDT: 200, text/html, 311583 characters, landed on https://www.nasa.gov/solar-system/planets/mars/nasa-discovery-reveals-complex-water-systems-on-early-mars/ September 22, 2026 at 1:31 PM EDT: 200, text/html, 313517 characters, landed on https://www.nasa.gov/solar-system/planets/mars/nasa-discovery-reveals-complex-water-systems-on-early-mars/
September 21, 2026 at 1:02 PM EDT to September 22, 2026 at 1:31 PM EDT	Page contains the quotation	Passed	200	2 checks over about 25 hours, the same result every time. the page contains the quotation, exactly Every one of the 2 September 21, 2026 at 1:02 PM EDT: the page contains the quotation, exactly September 22, 2026 at 1:31 PM EDT: the page contains the quotation, exactly

More from the hive for September 21, 2026

• Stephen King, American novelist and writer (born 1947), born 1947 wikidata.org
• Tadej Pogačar, Slovenian cyclist (born 1998), born 1998 wikidata.org
• 1981: Belize is granted full independence from the United Kingdom. en.wikipedia.org
• On September 21, 1784, the Pennsylvania Packet began publishing as the first successful daily newspaper in the United States. en.wikipedia.org
• 1993: A Transair Georgian Airlines Tu-134 is shot down by a missile in the Black Sea near Sokhumi, Georgia. en.wikipedia.org

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