Terminologies
This is the study of everything in the universe beyond Earth’s atmosphere.
Astronomy
The coldest planet in our solar system.
This galaxy is the closest neighbor of the Milky Way.
Andromeda Galaxy
He discovered that the universe is expanding.
Edwin Hubble
It is the largest known black hole.
TON 618
It is a unit of distance equivalent to the distance light travels in 12 months.
Light year
The distance of Earth from the Sun.
92 million miles
Three things that galaxies contain.
Gas, dust and stars
In 1969, this American spaceflight first landed humans on the moon.
Apollo 11
It is when black holes do not emit high levels of X-ray radiation, which is how such black holes are typically detected.
Dormant black holes
It is a distinctive pattern of stars used informally to organize a part of the sky.
Constellation
Named after the ancient Roman god of the sky. Io, Europa, Ganymede, and Callisto revolve around it.
Jupiter
This type of galaxy typically has a rotating disc with spiral ‘arms’ that curve out from a dense central region.
Spiral Galaxy
The Big Bang theory was originally formalized by him in 1927.
It is called "The Unicorn"
The smallest discovered black hole and the closest one to Earth found so far.
It is a system of two stars that are gravitationally bound to and in orbit around each other.
Binary star or double star
A day on this planet is 243 Earth days.
Venus
The most abundant type of galaxy in the universe but are difficult to detect due to their low luminosity, low mass and small size.
Dwarf Galaxy
He discovered the four largest moons of Jupiter in 1610.
Galileo Galilei
It is what early physicists studying these bizarre objects often called black holes.
Frozen stars
It is when an object moves in the reverse sense of “normal” motion.
Retrograde
Poltergeist and/or Phobetor
This galaxy is the oldest known galaxy known to the universe and was formed just 300 million years after the Big Bang.
GLASS-z13 galaxy
The first female astronomer whos discovering and cataloging astronomical objects in the 18th century is still used in the field today.
Caroline Herschel
It is the center of a black hole where matter is compressed down to an infinitely tiny point, and all conceptions of time and space completely break down.
Singularity