Where's the Evidence! 🔍
Our Galaxy 🌀
Show Me... 👁️
Rhyme Time 🎶
Who's Hubble? 🔭
100
Scientific evidence suggests that the universe began approximately this many years ago.
What is 13.8 billion years ago?
100
Our address in space can be listed as: Universe → ________ → Solar System → Planet Earth.
What is the Milky Way Galaxy?
100
This nearby spiral galaxy is moving toward the Milky Way and is expected to eventually collide with it.
What is the Andromeda Galaxy?
100
Thinking on such a large scale may feel like a curse, but everything in space makes up our _______.
What is the universe?
100
This piece of space equipment is used to collect data and capture images of distant galaxies.
What is the Hubble Space Telescope?
200
This leftover heat energy from the Big Bang is detected as microwave radiation throughout the universe.
What is cosmic background radiation?
200
The Milky Way Galaxy is classified as this type of galaxy because of its curved arms extending from the center.
What is a spiral galaxy?
200
Based on the observed spectrum, this galaxy is moving in this direction relative to Earth.
What is away from Earth?
200
If scientists gathered to hang, they'd agree the universe began with a _______.
What is the Big Bang?
200
Hubble’s Law describes the relationship between these two variables.
What are a galaxy’s distance from Earth and its recessional velocity?
300
This type of Doppler Effect provides evidence that the universe is expanding as galaxies move away from Earth.
What is red shift?
300
Astronomers use this unit of measurement to describe the vast distances between galaxies.
What is a light-year?
300
This diagram illustrates the change in wavelength caused by an object's motion.
What is the Doppler Effect?
300
We may not have rockets landing, but redshift provides evidence that our universe is _______.
What is expanding?
300
Hubble’s Law shows this type of relationship between a galaxy’s distance and recessional velocity.
What is a direct (positive) relationship?
400
According to the Big Bang Theory, the universe began in a state described by these two conditions.
What are extremely hot and dense?
400
The Milky Way Galaxy measures approximately this many light-years across.
What is 100,000 light-years?
400
This diagram illustrates the relationship between a galaxy’s distance and its recessional velocity.
What is Hubble’s Law?
400
Pictures of the Milky Way often go viral, showing its curved arms arranged in a _______.
What is a spiral?
400
Hubble’s observation that more distant galaxies move away faster supports this major conclusion about the universe.
What is that the universe is expanding?
500
Since the Big Bang, the universe has undergone these two major changes.
What are expanding and cooling?
500
Within the Milky Way Galaxy, our Solar System is located approximately here in relation to the galaxy’s center and outer edge.
What is halfway from the center to the outer rim?
500
Based on this diagram, Galaxy A is farther from Earth than Galaxy B. This galaxy would have the greater recessional velocity.
What is Galaxy A?
500
Among the stars, there's so much to see, and billions of them can make up a _______.
What is a galaxy?
500
According to Hubble’s Law, a galaxy moving away at a high velocity is likely located at this relative distance from Earth.
What is farther away from Earth?