Solar System
Where are comets believed to come from?
The Oort Cloud or the Kuiper Belt
When was the universe formed?
13.8 billion years ago
Yes
How many satellites orbit around the earth?
More than 9000
What is one type of robots used in space?
The Rover
How many dwarf planets are there?
5: Ceres, Pluto, Haumea, Makemake, and Eris
What are the 3 different types of galaxies?
Elliptical, spiral, and irregular.
What device is used to observe the star during night time?
The Telescope
Why are satellites used?
The satellites provide information on the Earth's weather, as well as giving us information and internet connection.
What uses does the Rover have?
Transmitting information, collecting samples from the planet it was sent to.
What is the difference between a comet and a meteor?
A comet orbits the sun, and it is made up of ice, while a meteor burns up in the Earth's atmosphere, and it is made up of rock
What can a star become after it dies?
A white dwarf, neutron star, or a black hole.
Can a star be a sun? If so, then how many solar system would we have in one galaxy
Yes, the star can be a sun. Since the sun is the center of the solar system, there would be many solar system exist in one galaxy at once.
How many GPS satellites are there?
There are 31 GPS satellites
What is the name of the furthest human-made object in space?
Voyager 1
Why does the moon turn red during a lunar eclipse?
The red light from the sun is the only light that passes through the Earth's atmosphere, hitting the moon.
Why are wormholes so hard to find?
It takes a massive amount of energy to create one, and they are very unstable as well
What is the biggest star we know about?
UY Scuti
What is the most recent telescope launched by NASA?
The James Webb Telescope
Approximately how many robots were launched into space?
Over 10 Thousand
How did the Solar System form? (all steps)
Solar nebula made up of interstellar gas and dust became an accretion disk due to gravity. At the center, the Sun formed, and planets started to form when the matter began clumping together.
How big across is the observable universe?
93 light-years across
What is a neutron star and how is it formed?
After a supernova, the core of the star collapses, forming neutron star. The magnetic field on a neutron star can be over a billion times bigger than the one on Earth.
What happens to the pieces of satellites after a satellite collision?
The pieces would orbit around the earth for thousands of year due to no air resistance in space.
Out of all the 21 rovers that landed on Mars, how many rovers are actually in operation on Mars?