His enthusiastic cry livened up the entire venue.

The thermosphere is a part of the Earth's atmosphere, located above the stratosphere and the mesosphere.

He lives on a tropical island.

The heliocentric theory is the idea that the sun, not the earth, is the center of the universe.

He was hit hard in the solar plexus during the boxing match.

He is suffering from combat stress reaction.

He is an expert in nuclear physics and has won many awards in the field.

The development of fusion reactors could potentially be the key to solving future energy problems.

The amygdala is a part of the brain that controls our emotions.

Research on cold fusion is still controversial.