Science & Tech 01 November 2026
4.1-Billion-Year-Old Martian Meteorite 'Teghaza 001' Discovered in the Sahara Desert
Why in the News?
In a new study published in the journal Science, researchers revealed that ordinary-looking pinkish rocks found in the Sahara Desert four years ago are actually pieces of a rare Martian meteorite named 'Teghaza 001'. Estimated to be at least 4.1 billion years old, it stands as one of the oldest Martian meteorites ever discovered on Earth.
Key Features / Major Points:
- Discovery & Naming:
- Named after Teghaza, an ancient abandoned settlement in Mali near where the ~800-gram pinkish rock was found.
- Scientific Significance ("Time Machine"):
- Acts as a cosmic time machine, preserving mineral records from a few hundred million years after Mars formed.
- Provides crucial clues about the mantle and crust of early Mars during an era when liquid water flowed on its surface.
- Extreme Rarity:
- Out of more than 400 Martian meteorites found to date, only two others (Allan Hills 84001 and Northwest Africa 7034) approach the age of Teghaza 001.
- Tracing Origins:
- While the exact timing of its ejection from Mars and impact in the Sahara remains unknown, NASA’s Jet Propulsion Laboratory (JPL) research team has identified 13 potential launch sites for Teghaza 001.
Static GK Facts:
- Planet Mars:
- Nickname: The Red Planet (due to iron oxide/rust on its surface).
- Moons: Two natural satellites – Phobos and Deimos.
- NASA Jet Propulsion Laboratory (NASA JPL):
- Headquarters: Pasadena, California, USA.
- Meteorites vs Meteoroids:
- Space rocks that survive atmospheric entry and land on Earth's surface are termed meteorites.
One-Liner Quiz (All Competitive Exams):
Q: What is the estimated age of the rare Martian meteorite 'Teghaza 001' discovered in the Sahara Desert?
A: ~4.1 Billion Years Old
Q: Near which country's ancient abandoned settlement was the Teghaza 001 meteorite discovered?
A: Mali
Q: Approximately how much does the Teghaza 001 Martian meteorite weigh?
A: Around 800 grams
Q: Where is NASA's Jet Propulsion Laboratory (JPL) headquartered?
A: Pasadena, California, USA
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