Studying the Moons of Mars
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
NASA is helping with the MMX mission to Mars.
- A2
NASA is helping with the MMX mission to Mars.
- B1
NASA has contributed instruments, communications, navigation, and research money to a mission from the Japan Aerospace Exploration Agency.
- B2
The origin of the Martian moons Phobos and Deimos remains uncertain.
- C1
How Mars acquired its two moons, Phobos and Deimos, is a question on which researchers have long disagreed.
- C2
How Mars acquired its two moons, Phobos and Deimos, is a question on which researchers have long failed to agree.
Key words
Words from the B1 text, with their meaning.
- contribute
- to give money, help, or equipment to support a shared project
- sample
- a small amount of something that is studied or tested to learn about the whole thing
- gravity
- the invisible force that pulls objects towards a planet or star
- launch
- the act of sending a spacecraft or rocket into the sky
- spectrograph
- a scientific tool that records light or energy to show what something is made of
- particle
- an extremely small piece of matter
Rewritten with AI from facts reported by NASA. Read the original for the full report.