The act of passing on old beliefs to next generation of people
Traditions
All of the people born and living at about the same time
generation
Group of stars held together by gravity
galaxy
Grammar: word used when something is more likely to happen
may
A stiff, sharp-pointed thing on a stem
a thorn
Means outside of Earth (adjective word)
Extraterrestrial
What's this?
It's a comet.
Fill in the blank: There _____ be oxygen on planets in other galaxies.
may be