The Long Mission of the Mars Rover Opportunity
In the app: the whole story at your level, listening, the quiz and the word cards.
The same story at six levels
How the first sentence reads at every level, from A1 to C2.
- A1
Opportunity was a NASA machine on Mars.
- A2
The NASA rover Opportunity stopped working on Mars.
- B1
The NASA rover Opportunity was nicknamed Oppy.
- B2
The NASA rover Opportunity, nicknamed Oppy, operated on Mars from 2004 to 2019.
- C1
Designed for a lifespan of 90 sols—each Martian day lasting slightly longer than a 24-hour day on Earth—the NASA rover Opportunity, nicknamed Oppy, operated on Mars from 2004 to 2019.
- C2
Designed for a lifespan of 90 sols—each Martian day stretching slightly beyond Earth's 24 hours—the NASA rover Opportunity, nicknamed Oppy, ended up operating on Mars from 2004 to 2019.
Key words
Words from the B1 text, with their meaning.
- rover
- a small vehicle that can move over rough ground on another planet
- operate
- to work or function as a machine
- crater
- a large round hole in the ground, often on a planet or moon
- ancient
- from a very long time ago
- device
- an object or machine that is made for a special purpose
- command
- an instruction given to a computer or machine
Rewritten with AI from facts reported by USGS. Read the original for the full report.