Hubble Space Telescope Lesson Booklet Teacher's ... - Top Stars

Orbiter
The part of the space shuttle that looks like an airplane,
flies into space and back down again, carrying people
and equipment.
Planet
A body that orbits a star in a solar system, and which
shines only by reflected light.
Reflecting Telescope
Telescope that uses mirrors to collect and focus light
from a celestial object onto a detector for recording or
into an eyepiece for viewing.
Saturn
Sixth planet from the sun noted for its bright system of
rings.
Space Shuttle
A reusable spacecraft designed to take people and cargo
between Earth and space. It is made up of the external
tank, two solid rocket boosters, and the orbiter with the
three space shuttle main engines.
Spacewalk or Extravehicular Activity (EVA)
Outside the spacecraft; activity in space conducted by
suited astronauts.
Spiral Galaxy
A galaxy that is shaped like a disk with a bulge in the
center. The disk resembles a pinwheel, with bright spiral
arms that coil out from the center bulge.
Star
A large ball of gas that creates and emits its own radiation.
Karen Freiboth
NASA Top Stars