Physics
"Elementary" Chemistry
Mystery
Biology
Astronomy
200
This 'atomic' process powers stars. Name it.
Nuclear Fusion
200
Marvin the Paranoid Android from The Hitchhiker's Guide to the Galaxy series has a distaste for our species , often referring to us as"disgusting ______ Based lifeforms
Carbon
200
Slow, floating objects were the bane of the triangle-shaped ship's existence in this 1979 Atari video game
Asteriods
200
Sputniks 5, 6, 9 & 10 also carried these animals into space, & most were recovered alive
Dogs
200
Voyager 2 flew by this giant in 1989, then headed on out into interstellar space
Neptune
400
The 2 main types of optical telescopes are reflectors & these, which use lenses to magnify objects
Refractors
400
The symbol for Mars is also the old symbol for this element, which lends Mars its characteristic colour
Iron
400
This aircraft was one of the largest ever built made to transport the Russian Buran class orbiters (the equivalent of US space shuttle), it was unfortunately demolished by Russian forces in the Ukranian War.
Antonov An-225
400
Although Astrobiology is an interdisciplinary scientific field that studies the origins, early evolution, distribution, and future of life in the universe, this term was previously used to describe the study of extraterrestrial life.
Xenobiology
400
In 2017 scientists recorded ripples in space-time called gravitational waves, which emerged when 2 of these collided
Black Holes
600
Also called a gravity assist, this maneuver uses the gravity of a celestial body to accelerate a spacecraft
A slingshot
600
The Moon has an isotope of this element embedded in its soil, which is a much wanted commodity back on earth for its role in nuclear fusion.
Helium
600
Term for the first stage of a rocket; it refers to the extra power needed during liftoff
Boosters
600
In 2015 astronauts aboard this tucked into some romaine lettuce, becoming NASA's first to eat space-grown veggies
The ISS
600
The 2 horns of this bovine sign of the zodiac are represented by the stars El Nath & Al Hecka
Taurus
800
China now has the world's largest one of these telescopes; it's basically a dish antenna a third of a mile across
A Radio telescope
800
The Falcon 9 is 230 feet tall & weighs 1.2 million pounds, so its retractable landing legs have to be immensely strong; they're made of carbon fiber surrounding a honeycomb of this light but strong metal
Aluminium
800
In 2019 World Space Week commemorated the 50th anniversary of this major milestone
Moon Landing
800
These monkeys normally live in the tropics of the Americas, but in 1959, one rode into space and returned safely 
Squirrel Monkey
800
This spiral galaxy is named for an Ethiopian princess in Greek mythology
Andromeda Galaxy
1000
Gravity stretching time is one of the key effects explained by this theory by a Jewish Scientist
Einsteins Theory of Special relativity
1000
The first US astronaut in space- Alan Shepherd, was a product of this project which shares its name with an element.
Project Mercury
1000
This government facility abbreviated KSC is found on Cape Canaveral in Florida
Kennedy Space center
1000
This is an equation that estimates the number of communicative civilizations in the Milky Way Galaxy:
The Drake Equation
1000
Undetected until the 1990s, this belt is a zone of space past 30 A.U. & home to objects like dwarf planets & icy centaurs
The Kuiper Belt