Exploring Stars and the Universe

Front

What is a stellar nebula?

Back

A huge cloud of gas and dust where stars are born.

Front

What is the primary source of energy for life on Earth?

Back

The sun.

Front

What is the life cycle of a massive star?

Back

Nebula --> protostar --> main sequence --> red supergiant --> supernova --> blackhole.

Front

Where is a star first formed?

Back

In a stellar nebula.

Front

What type of galaxy is characterized by a lack of defined structure?

Back

Irregular galaxy.

Front

What is a protostar?

Back

A stage in star formation where a cloud of gas and dust begins to collapse under gravity.

Front

What is a red supergiant?

Back

A massive star that has expanded and cooled after exhausting its hydrogen fuel.

Front

What is a supernova?

Back

An explosion that occurs at the end of a massive star's life cycle, resulting in a bright burst of light.

Front

What is a black hole?

Back

A region of space where the gravitational pull is so strong that nothing, not even light, can escape.

Front

What is the difference between a red giant and a red supergiant?

Back

Red giants are less massive stars that have expanded, while red supergiants are massive stars that have expanded significantly.