Fill on the blank with one suitable word from the box. detergent, bullet, orbits, altitude, groundbreaking, microgravity, meteorite, satellite, occasionally, experience 1. The Earth........ the sun in 365.256 day 2. Landing on a comet is a...... space mission. 3. Meteor rain ........ happens several times in a year. 4. Do the astronauts use a..... product to wash their space suit.? 5. If the astronauts forget to fix themselves as sleeping in ............, they will float around. 6. You can....... weightlessness if you go into microgravity. 7. A........ that lands on Earth from the moon must be exhibited in the museum. 8. We muse close all windows of the plane because it flies at high.................