Interstellar Space and Oumuamua Quiz

What is interstellar space primarily filled with?

• Black holes

• Rogue planets and cosmic rays

• Dark matter

• Empty voids

What was the first known interstellar object to enter our solar system?

• Halley's Comet

• Asteroid Belt

• Voyager 1

• Oumuamua

What was the initial speculation about Oumuamua's shape?

• It was a perfect sphere

• It was shaped like a cigar

• It was a cube

• It was a flat disc

What did scientists initially consider Oumuamua might be?

• A supernova remnant

• A black hole

• An alien spacecraft

• A new planet

What was the conclusion about Oumuamua's nature after the investigation?

• It was an alien spacecraft

• It was a man-made satellite

• It was a natural object

• It was a new type of star

What unusual behavior did Oumuamua exhibit as it passed through the solar system?

• It emitted radio signals

• It changed color

• It accelerated unexpectedly

• It stopped moving

What is the proposed explanation for Oumuamua's unexpected acceleration?

• Gravitational pull from Earth

• Outgassing

• Magnetic fields

• Solar wind

What color is Oumuamua's surface?

• Yellow

• Red

• Green

• Blue

What organic molecules are thought to be present on Oumuamua's surface?

• Proteins

• Lipids

• Tholin

• Carbohydrates

What causes the red sheen on Oumuamua's surface?

• Volcanic activity

• Atmospheric gases

• Cosmic ray bombardment

• Reflection of sunlight