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What is a light-year?
The distance light travels in one year
Why do planets stay in orbit around the Sun?
Sun's gravity
What’s the difference between rotation and revolution?
Rotation is spinning on an axis while revolution is orbiting the sun
Who was the first human to walk on the Moon and when?
Neil Armstrong during Apollo 11 on July 20, 1969
What galaxy is closest large neighbor to the Milky Way?
Andromeda Galaxy
What is the Big Bang?
The rapid expansion that began the universe about 13.8 billion years ago.
What is a supernova?
A powerful stellar explosion at the end of a massive star’s life
What does a rocket need to overcome to reach space?
Earth’s gravity
What does NASA stand for?
National Aeronautics and Space Administration.
Which NASA program first landed humans on the Moon?
Apollo Program
Why is Mars considered a prime target for NASA’s future crewed missions?
It has signs of past liquid water, potential for life, and resources (like CO₂) that can support exploration.
What is the Hubble Space Telescope’s main advantage over ground telescopes?
It orbits above Earth’s atmosphere, avoiding distortion and light pollution.
Which planet has the fastest rotation (shortest day)?
Jupiter
Why is Venus hotter than Mercury even though it is farther from the Sun?
Because of its thick carbon dioxide atmosphere
Which planet has the tallest volcano in the Solar System, Olympus Mons?
Mars.
Which planet has a day (rotation) longer than its year (orbit)?
Venus
