
How did people reach the Moon?
One spacecraft stayed in lunar orbit. Another took two people down and back up.
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From Earth to other planets: discover spaceflight, models and questions researchers investigate.

One spacecraft stayed in lunar orbit. Another took two people down and back up.
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The smallest planet orbits close to the Sun. Its extremely thin gas envelope matters.
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It is similar in size to Earth but has a very different atmosphere.
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Land, water, air and life are connected. A globe helps us understand.
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A cold desert world preserves evidence of ancient water. Evidence for water is not proof of life.
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These striking patterns belong to moving clouds. Jupiter has no solid ground like Earth.
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Its strongly tilted rotation axis is unusual. A table model helps explain it.
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Calculations guided the search. Familiar blue pictures do not always tell the whole colour story.
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A great concentration of mass changes its surroundings. Separate the dark interior from glowing gas outside it.
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A tiny change in brightness may reveal a planet crossing in front of a distant star.
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Suitable conditions, possible clues and confirmed evidence are three different things.
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What looks like a broad tyre consists of many separate pieces, each moving around the planet.
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Measuring devices, instructions and motors work together. Robots do not have to look like people.
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Computers can look for patterns in data. A matching pattern is not always a correct answer.
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Power, control and sharing a ride are different questions. Research models help test ideas.
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