Luminous ball of hydrogen and helium gas...
A region of space-time exhibiting such strong gravitational effects that nothing—not even light can escape
An area on the celestial sphere in which a group of visible stars forms a perceived outline or pattern, typically representing an animal, mythological person or creature, or an inanimate object.
The Solar System is the gravitationally bound system of the Sun and the objects that orbit it, either directly or indirectly.
An interstellar cloud of dust, hydrogen, helium and other ionized gases...
A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems, all held together by gravity.
Planets that orbit around other stars are called exoplanets.