Navigation
This star can be used at night to find out which way is North
Polaris
When a supernova explodes, chemical elements are distributed throughout outer space, creating new ___ and ___
Stars, Planets
White dwarfs are stars that burned up all the ___ that they once used as nuclear fuel
Hydrogen
This many stars typically collide in a stellar collision
Two
About this many stars are born throughout the universe in a day
400 Million
Two pointer stars for the North Star are ___ and ___
Dubhe, Merak
A supernova is an explosion of a star that occurs at the end of its ___
Cycle
When a white dwarf is too compressed, the result is a ___
Supernova
Stellar collisions occur when stars begin to ___ and when stars lose their ___
Die, Gravitational Pull
Less use of technology and natural resources is an impact on:
The Environment
A use of stars in ancient civilisations is:
Agriculture, Worship, Time, Navigation etc
A supernova occurs when there is a change in the ___ of the star
Center
The fastest discovered orbiting pair of white dwarfs orbit each other one in this many minutes
7
Stars don't usually collide because most things in the universe are ___
Too far apart
Stars being useful for non-tech users is a positive impact on:
People
The ___ can be used to find which way is South
Southern Cross
Supernovae help compress clouds of gas and in doing so help form ___
New stars
About ___% of stars in our galaxy will end up as white dwarfs
90
In what year do astronomers believe a stellar collision will occur?
2022
Worldwide panic when, in the future, the sun and other major stars begins to die is a negative impact on:
Society
In the past, people looked to the stars for ___
Guidance
A supernova can occur when a star runs out of nuclear fuel and the ___ of the star goes into its ___
Mass, Core
Temperatures on white dwarfs are ___ and can go up to ___ degrees
Immensely high, 100 Million
Since our galaxy is not ___, we don't often have stellar collisions
Densely packed