Space Engineering
What are the reasons for using aluminium in spacecrafts? (State two)
low density and corrosion resistance
What was the name of the first mission that landed humans on the moon?
Apollo 11
Who was the Astronomer who discovered the four largest moons of Jupiter?
Galileo Galilei
What was the first spacecraft to leave the solar system?
Voyager 1
What was the name of the signal detected in 1977 that suggested signs of extraterrestrial life?
The Wow! Signal
Who was the astronomer who classified over 350,000 stars and developed the Harvard Spectral Classification system?
Annie Jump Cannon