Exploring Arrokoth and the Kuiper Belt

What significant discovery did the New Horizons spacecraft make on Arrokoth?

• It discovered a new type of star.

• It discovered a new moon of Neptune.

• It found that Arrokoth is covered in sugar.

• It found a new planet.

What is Arrokoth primarily composed of?

• Silicon and oxygen

• Liquid water

• Frozen methanol

• Iron and nickel

What is a contact binary?

• A single large asteroid

• A binary star system

• A type of comet

• Two asteroids that collided and stuck together

What did researchers use to simulate space radiation in the lab?

• Ultraviolet light

• High-energy electrons

• Magnetic fields

• X-rays

What are polycyclic aromatic hydrocarbons?

• Molecules resembling honeycombs

• Complex proteins

• Simple sugars

• Types of metals

Which sugars were found on Arrokoth?

• Lactose and maltose

• Galactose and mannose

• Glucose and ribose

• Fructose and sucrose

What role does ribose play in biological systems?

• It is a type of protein.

• It is used in photosynthesis.

• It is a component of DNA.

• It forms the backbone of RNA.

How might sugars from asteroids like Arrokoth have reached Earth?

• Through atmospheric winds

• Through volcanic eruptions

• Via meteorite impacts

• By ocean currents

What is the significance of finding sugars on Arrokoth?

• It proves the existence of life on Arrokoth.

• It suggests a possible link to the origins of life on Earth.

• It shows that Arrokoth is a habitable planet.

• It indicates the presence of water on Arrokoth.

What is the potential implication of Arrokoth's sugary surface for Earth's pre-life chemistry?

• It suggests that life on Earth originated from Mars.

• It indicates that sugars are not important for life.

• It implies that asteroids could have delivered life's building blocks to Earth.

• It shows that Earth's atmosphere is similar to Arrokoth's.