all objects seen in the sky (the Sun, Moon, stars, and planets)
any object (natural or artificial) that revolves around another object in space
an unmanned spacecraft that gathers info about objects in spaceand sends it back to earth
A craft designed for travel in space beyond the earth's atmosphere.
a tool that gathers light to make far away objects appear close
optical telescope that uses a concave mirror to focus light
optical telescope that uses a double convex lens to bend light
International Space Station (ISS)
a permanent laboratory built by many nations in the Earth's atmosphere
the condition of experiencing little or no pull of gravity that astronauts feel in space.
NASA missions that first allowed a human to walk on the moon
NASA missions that practiced connecting spacecraft in orbit around the Earth
NASA missions that first allowed humans to orbit the Earth
special engine that can work in space and burns liquid or solid fuel
a reusable spacecraft that can carry cargo, astronauts, and satellites to and from space
a device used to detect radio waves from objects in space