Which hypothesis is most supported by astronomers? The universe is currently expanding and will continue to expand. Stars could burn out, causing the universe to become dark and cold. Gravity could pull galaxies back together, causing a reverse of the big bang. Dark energy will pull the universe together to form a massive black hole.

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.