Mars helicopter – level 1
NASA’s rover lands on Mars on February 18, 2021. A rover is a special car. It travels on the moon or Mars. The rover does not travel alone to Mars. It carries a small helicopter, too.
Landing on Mars is not easy. The helicopter is on the rover’s bottom part. A special metal thing keeps it safe during the landing.
Mars has different gravity and atmosphere than Earth. The helicopter must be small and light. The rover and the helicopter need special heating, too. It can be up to minus 90 degrees on Mars at night. Some electrical parts can freeze or break.
The rover is taking the helicopter to a special place. The helicopter will fly from there. The first flight will be 31 days long. It will be the first flight on another planet.
Difficult words: gravity (a natural force which makes things fall toward a planet or a sun), atmosphere (the gasses around a planet), flight (when somebody or something flies).
You can watch the original video in the Level 3 section.
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