25 Years of Hubble, and MESSENGER's Grand Finale

The video discusses the Hubble Space Telescope's 25-year history, highlighting its contributions to astronomy, such as discovering exoplanets and determining the universe's age. It also covers the future of Hubble and the MESSENGER mission to Mercury, which provided insights into the planet's atmosphere and surface. The video concludes with a call to support SciShow Space.

What significant discovery did the Hubble Space Telescope make about planets?

• It confirmed that Earth is the only planet with life.

• It provided early evidence that planets are common around stars.

• It discovered the first planet in our solar system.

• It found that planets are rare in the universe.

How did Hubble contribute to determining the age of the universe?

• By measuring the distance to the nearest galaxy.

• By observing the brightness of Cepheid variables.

• By calculating the mass of black holes.

• By mapping the surface of Mars.

What was the original plan for the Hubble Space Telescope after its mission?

• To crash it into the Moon.

• To bring it back to Earth for display in a museum.

• To send it to Mars.

• To leave it in orbit indefinitely.

What did the MESSENGER spacecraft discover about Mercury's surface?

• It is made entirely of iron.

• It contains water ice in its craters.

• It has a dense atmosphere.

• It is covered in thick ice.

What is the future mission planned for Mercury by European and Japanese space agencies?

• To send two orbiters to study Mercury.

• To land a rover on Mercury.

• To build a space station on Mercury.

• To launch a satellite to orbit the Sun.