terms and definitions Flashcards
what is “ a piece of technology that transports materials, astronauts, and machines into space.”
a rocket
what is “ a piece of equipment that allows astronauts to survive in space outside of a ship or space station.”
a space suit
what is “ a piece of space technology that is placed in orbit around celestial bodies like the Earth or Mars.”
a satellite
What is” space vehicles sent to another celestial body without humans on board? They can fly past, land on, or orbit the celestial body.”
a probe
What is “ a piece of technology that gathers and focus light in the visible spectrum that is emitted by distant celestial bodies?”
a optical telescope
What is “ a piece of technology that gathers radio waves emitted by celestial objects? This energy can tell us different things than visible light collected by optical telescopes.
a radio telescope
What is “ The distance that light travels in one year? It equals approximately 9.4 trillion km!
A light year
what is” all matter, space, and time? Also called the ‘cosmos’?”
The universe.
What is “ Entire universe began about 13.7 billion years ago? The universe started as a single point of incredible density and heat.
The big bang theory.
What is “Everywhere we look in space there is an almost perfectly uniform background ‘light’ (ie: radiation). This background radiation has been travelling toward the Earth for nearly 13.7 billion years!”
The cosmic microwave background radiation.
What is “ the universe is expanding faster and faster every day due to an energy were not aware of.”
Dark energy
What is “ a large cloud of gas and dust in space.”
A Nebula
What is “ an enormous collection of gases, dust, and billions of stars held together by gravity.”
Galaxy
What is “ all the matter that makes up the universe started as a single point of incredible density and heat”
Singularity.
What is “When viewed directly they look like a pinwheel with spiral arms coming from the galactic core but when viewed from along its edge, a spiral galaxy is a disc shape with a bulge in the centre.”
Spiral galaxies