Space Engineering
What are the reasons for using aluminium in spacecrafts? (State two)
low density and corrosion resistance
What is the hottest planet in the solar system?
Venus
What was the name of the first mission that landed humans on the moon?
Apollo 11
What celestial object was initially mistaken for alien signals due to its extremely regular radio pulses?
Pulsar
What is Newton’s law of gravitation
Newton's Law of Universal Gravitation states that every particle attracts every other particle with a force proportional to the product of their masses and inversely proportional to the square of the distance between their centers/or the formula
What is the professional term used for the long legs that unfold to help rockets land vertically on a pad?
Landing legs
Which planet has the most moons?
Saturn
Who was the Astronomer who discovered the four largest moons of Jupiter?
Galileo Galilei
What is the theoretical final stage of a low mass star?
Black dwarf
What escape velocity is required to escape Earth’s Gravitational Field
11.2km/s
What is used at the bottom of a capsule when it hits Earth’s atmosphere at high speeds to prevent it from melting?
Heat shield
What is the sun’s outermost layer called?
The corona
What was the first spacecraft to leave the solar system?
Voyager 1
What is the term for the theoretical boundary around a black hole beyond which nothing can escape?
Event horizon
What is an emission spectrum
An emission spectrum is the unique pattern of light (or other electromagnetic radiation) emitted by an element or compound when its electrons fall from higher to lower energy levels
what is the ideal shape used in space settlements
torus
Which moon of Jupiter is the most volcanically active?
Io
What was the name of the signal detected in 1977 that suggested signs of extraterrestrial life?
The Wow! Signal
What is the region around a star where liquid water can exist on a planet's surface?
The goldilocks zone/habitable zone
What is Lorentz invariance?
The symmetry principle stating that the laws of physics are the same in all inertial frames.
What is the professional term for “space armor” or “debris shield”?
Whipple Shield
What is the name of the boundary where the solar wind meets interstellar space, marking the edge of the Sun's influence?
heliopause
What was the name of the hypothetical planet that was thought to be between mercury and the sun in the mid 19th century?
vulcan
In what nebula are the Pillars of Creation located?
Eagle nebula/ Messier 16
Which two concepts did Bekenstein-Hawking entropy resolve the conflict between
The issue of blackholes and the 2nd law of thermodynamics (entropy of an isolated system always increases)