Archive · 20 May 2025
Mars Jarosite: A Natural Clock on the Red Planet
Imagine Mars has a special mineral called jarosite that can help us tell time, like a clock.
Scientists studied jarosite and found out it can tell us when things happened on Mars, like dust storms or floods.
They heated it and shined light on it and measured the light emitted.
This tells them how long ago these events happened.
This clock can measure events from up to 25,000 years ago.
Future robots on Mars could use jarosite to understand Mars' history, which would be really cool!
Researchers found jarosite, a mineral on Mars, could serve as a geological clock.
Jarosite samples from Gujarat, India, were analyzed for luminescence.
The mineral's luminescence revealed clear emissions at specific temperatures.
Jarosite can record events that occurred within the last 25,000 years.
Future rovers could use jarosite to date Martian events.
- Who
- Researchers analyzed jarosite samples.
- What
- Jarosite can be used as a natural clock to measure events on Mars.
- When
- Jarosite can record events within the last 25,000 years.
- Where
- The research involved samples from Gujarat, India and is applicable to Mars.
- Why
- To date events on Mars like dust storms and volcanic ash.
- Mineral
- Jarosite
- Composition
- Potassium, iron, sulphate
- Location of Samples
- Kachchh, Gujarat (Earth); Mars
- Luminescence
- Reveals emissions at specific temps
- Dating Range
- Up to 25,000 years