Hubble Space Telescope and the Expansion of the Universe

What was one of the main objectives of the Hubble Space Telescope when it was launched?

• To study black holes

• To measure the Hubble constant

• To explore the surface of Mars

• To discover new galaxies

What are Cepheid variables used for in astronomy?

• Measuring the temperature of stars

• Calculating the age of the universe

• Measuring distances in space

• Detecting black holes

What does the cosmic microwave background help scientists predict?

• The expansion rate of the universe

• The temperature of the sun

• The formation of black holes

• The color of distant stars

What is the Hubble tension?

• A discrepancy in the universe's expansion rate measurements

• A type of star used to measure distances

• A new galaxy discovered by Hubble

• A method to calculate the age of the universe

What analogy is used to explain the Hubble tension?

• Comparing the speed of light to the universe's expansion

• Comparing a child's growth to the universe's expansion

• Comparing the ocean's depth to the universe's size

• Comparing the growth of a tree to the universe

What percentage of the universe is made up of dark energy?

• 70%

• 90%

• 25%

• 50%

What is one challenge in understanding dark matter and dark energy?

• They change color frequently

• They are only found in distant galaxies

• Their microphysics are not well understood

• They are too bright to observe

How long has the Hubble Space Telescope been working on measuring the Hubble constant?

• 30 years

• 20 years

• 40 years

• 10 years

What was the original goal for measuring the Hubble constant?

• To measure it to 100% uncertainty

• To measure it to 10% uncertainty

• To measure it to 1% uncertainty

• To measure it to 50% uncertainty

What has the Hubble Space Telescope delivered in terms of data quality?

• Low quality data

• High quality and caliber data

• Moderate quality data

• No data at all