Vocabulary

• home in: Move or direct toward a specific target or goal.
• into space: Toward or entering the region beyond Earth's atmosphere.
• come from: To have as your native country or city
• change: To exchange one set of clothes for another
• capable: Being able to do something very well; proficient
• system: Set of organized, planned ideas that work together
• humble: Being lower in quality or status
• bound: To cover a wound, as with a bandage
• heritage: Traditional beliefs or customs of a culture
• earth: Wire connecting an electrical device to the ground
• greatness: Property of outstanding importance or eminence
• solar: Concerning the sun, or its heat
• necessity: Something that you must have or do
• marvel: Something that causes wonder or astonishment
• frontier: Border crossing between countries
• millennium: Period of time that lasts one thousand years
• knot: Secure form of tying a rope, string etc.
• alpha: First letter in the Greek alphabet