Astrophysics Quiz

The Sun is made mostly from what element?

• hydrogen

• helium

• nitrogen

What is the process that “powers” stars?

• quantum tunnelling

• nuclear fission

• nuclear fusion

A planet that does not orbit any star, instead wandering through the galaxy alone, is called what?

• a Templar

• a rogue planet

• a planetar

What was the first spacecraft to enter the interstellar medium?

• Cassini

• Voayager 1

• Hubble

When a star first forms, it is surrounded by a disk of gas and dust that may eventually form planets. What is the disk called?

• an event horizon

• a stellar cluster

• a protoplanetary disk

The two primary classifications of galaxies are elliptical and what else?

• cloud

• spiral

• ring

What is the term for a system of two stars revolving around each other?

• Tatooine

• a twin system

• a binary star

How many planets are there in the Solar System?

• 7

• 11

• 8

• 10

Which of these is a moon of Saturn?

• Europa

• Elceladus

• Io

• Moon

The animal(s) which went into space first was (were):

• Bielka and Strielka, dogs

• Miss Baker, a monkey

• Laika, a dog

• fruit flies