Scientists
this wheelchair-bound scientist couldn't speak, yet he made big discoveries in gravity, Black holes and the Big Bang
Stephen Hawking
the name of our home galaxy
The Milky Way Galaxy
name a terrestrial planet in orbit around our Sun
Mercury, Venus, Earth, or Mars
A black hole is the final form of what was once a huge ____________
star
SETI is a group of researchers that search the galaxy for signs of....
intelligent alien species
What was being ranked on the Kardashev Scale?
Advanced civilizations ranked on their energy usage (control of a planet, star, galaxy)
What is Milkdromeda?
a super galaxy that will form when the Milky Way collides with Andromeda in the future
What do we call a large gas giant exoplanet that orbits its star very closely?
a hot Jupiter
What can escape the inside of an event horizon?
nothing not even light
How many alien civilization has SETI discovered in the last 50 years of its search?
zero, nothing
this famous equation used 7 estimated variables multiplied together to try to see how many advance civilizations might exist in the galaxy
Drake Equation
What are the strongest gravity traps in the galaxy? (So strong that not even light can escape)
black holes
What is a rogue planet?
an exoplanet that has been ejected from its home star and now drifts alone through the galaxy
the beginning of time and space is called the:
Big Bang
Scientists placed a "Golden Record" inside these space probes as a message to alien civilazations.
Voyager 1 & 2
Carl Sagan was famous for developing a message that intelligent aliens could understand. What language did he write the message in?
mathematics (the universal language)
When Hubble studied galaxies, he discovered that all of them are moving _____________________________
away from us
How can we detect exoplanets if they are too far and too small to see?
we look at the effect they have on their star (dimming / wobbling)
at the heart of a black hole is a point of infinite density and infinite temperature call a:
singularity
What simple question does the Fermi Paradox ask?
Is anybody out there?
A scientist named Dyson purposed sending billions of robotic drones to orbit the sun. What would be the purpose of doing that?
to collect huge amounts of solar energy
Most of the galaxy is made up of a mysterious invisible substance we don't fully understand yet called...
dark matter / dark energy
What type of star has a habitable zone around it?
every star has a zone where water can stay liquid and not boil or freeze
a super massive black hole that sends out tremendous beams of energy is called a:
quasar
When did space and time begin?
according to evidence, 13.8 billion years ago