Dwarf planets
What is the most famous dwarf planet?
Pluto.
What's a meteoroid?
They're rocks floating at high speeds in space.
What is a rocket?
It's a system used to transport materials and astronauts to space.
T/F: Probes have visited every planet.
True.
What is a satellite?
An electronic device we put into orbit.
Name a dwarf planet other than pluto.
Makemake, Ceres, Eris, Haumea.
What's a nickname for a comet?
A dirty snowball.
What are rockets made of?
Most of them are made of explosive fuels.
Do space probes need crews in/on them?
No.
What does satellite mean?
Satellites just refers to anything that orbits something else.
How many dwarf planets are there?
There are 5.
What does a meteoroid need to do to become a meteorite?
It needs to enter Earth's atmosphere and crash.
How tall is the largest rocket?
It's over 300ft tall.
T/F: Most probes return to Earth.
False: Most probes were designed not to return to Earth.
Name three types of satellites.
Geostationary (GEO), medium Earth orbit (MEO), low Earth orbit (LEO).
What makes a dwarf planet a dwarf planet?
It's a celestial body that is generally smaller than a planet and can't clear debris in it's orbit.
What are meteor showers commonly called?
Shooting stars.
Name four types of rockets.
Solid-fuel, liquid fuel, ion, plasma rockets.
How do probes send data to Earth?
Via radio.
About how many satellites are in orbit?
Around 2500.
What are the dwarf planets named after?
They're named after mythological characters.
Away from the Sun.
Who launch the first rocket into space?
Germany.
When was the first probe invented?
October 4, 1957.
What is it called when a satellite is placed so that it orbits Earth at the same rate?
Geosynchronous orbit.