Front

Where did our elements come from?

Back

Nuclear reactions in stars.

Front

What does a New Moon look like?

Back

A completely dark circle.

Front

What does radio astronomy look at?

Back

Radio astronomy looks at radio waves.

Front

What is an advantage of radio astronomy?

Back

The ability to observe through clouds and dust.

Front

What is Kepler’s 2nd Law of planetary motion?

Back

A planet moves in such a way that a line segment joining it to the Sun sweeps out equal areas during equal intervals of time.

Front

Why does an object travel forever in space but an ice skater slows down?

Back

Because space is a vacuum with no friction, while an ice skater experiences friction.

Front

What is the Big Bang?

Back

The leading explanation for the origin of the universe, proposing that it began as a singularity and expanded.

Front

What are cosmic rays?

Back

High-energy particles from outer space that may affect Earth's atmosphere.

Front

What is the significance of the Hubble Space Telescope?

Back

It has provided deep space images and contributed to our understanding of the universe's expansion.

Front

What is the difference between a planet and a star?

Back

A planet orbits a star and does not produce its own light, while a star generates energy through nuclear fusion.