Big Bang Theory
13.7 billion years ago
A dusty tail appears behind this rock and ice celestial body when it nears the sun. What is the name of this object?
Comet
What do planets orbit around in our solar system?
The sun
What is a satellite?
A natural or artificial body that revolves around a planet. The moon is considered one of these as is the International Space Station.
What happens when there is a supernova?
A massive star collapses in on itself
What happened to the universe immediately after the big explosion?
It became very hot and dense
What is an asteroid?
A rocky celestial body that orbits the sun
A collection of stars and their solar systems bound together by gravity. What is this term. Ours is the Milky Way.
A collection of stars and their solar systems bound together by gravity.
A large cloud of dust and gas in space. What is the name of this object?
Nebula
Celestial objects, outer space, and the universe
1 second later, what are the names of the atoms that were formed?
Protons, neutrons, and electrons
In our solar system, we have one planet that is considered a dwarf planet which is Pluto. Why is it referred to as this?
It is an object resembling a small planet but is lacking criteria to become a real planet
What is the definition of a solar system?
The sun, planets, and all the other objects that revolve around the sun
What is a black hole?
An area in space where the gravity is so strong that object cannot escape its pull.
The distance light travels in one year which is 5.9 trillion miles. Are light years measured in distance or time (years)?
Distance
How many years did it take for the universe to cool off enough to form planets and galaxies?
1 billion years
What is a star made up of?
A ball of hot gas that creates large amounts of energy through nuclear fusion where atoms join together.
Define the universe (the Big Bang Theory may have created this)
All galaxies, stars, planets, matter, energy and time.
What makes a black hole so dangerous?
If you get too close, the enormous gravity will suck you in. And if they are in their active quasar phase, you'll be blasted by high-energy radiation
What is a meteriod?
Meteoroids are fragments and debris in space resulting from collisions among asteroids, comets, moons and planets. They are among the smallest space rocks.
Hydrogen came together how much time after the explosion?
3 minutes
A large, round celestial body orbiting a star. The round shape results from its gravity is what kind of celestial body?
A planet
What does a cosmologist study?
The origin of the universe
The Oort Cloud is a group of ___ bodies beginning roughly 186 billion miles (300 billion kilometers) away from the Sun. Fill in the blank.
Icy
What causes meteor showers?
They occur when Earth passes through trails of particles left by comets. When the particles enter Earth’s atmosphere, they burn up, creating hundreds or even thousands of bright streaks in the sky.