Space
Planets
Stars
Spacetime
BANG
100
This is the name given to a streak of light in the sky when a sand grain explodes in the sky. Commonly called a shooting star.
What is a meteor?
100
A star and everything that orbits it.
What is a solar system?
100
The Sun will explode when it runs out of this.
What is Hydrogen?
100
The one star in Earth's sky that does not appear to move.
The North Star (Polaris).
100
This phenomenon describes how light from distant galaxies shifts toward longer wavelengths as the universe expands.
What is red shift?
200
the galaxy that includes the Solar System, with the name describing the galaxy's appearance from Earth: a hazy band of light seen in the night sky formed from stars that cannot be individually distinguished by the naked eye.
What is the Milky Way?
200
This planet has the largest temperature range in our solar system.
What is Mercury?
200
The first space telescope, named after the scientist who discovered the existence of other galaxies and the expansion of the Universe.
What is Hubble?
200
This theory suggests that the Sun and planets formed from a giant rotating cloud of gas and dust
What is the nebular hypothesis/theory?
200
The age of the Universe (within 200,000,000 years).
What is 13.7 billion years old?
300
The gravitationally curved path of an object around a point in space.
What is an orbit?
300
These small, icy bodies develop tails when they approach the Sun due to the heat.
What are comets?
300
Process occurring at the center of all stars.
What is nuclear fusion?
300
The average distance from Earth to the Sun
One AU or 8 light minutes.
300
What is the Webb Space Telescope?
400
a barred spiral galaxy and is the nearest major galaxy to the Milky Way
What is the Andromeda Galaxy?
400
This event is believed to have brought water and organic compounds to Earth through comet and asteroid impacts.
What is the late heavy bombardment?
400
This stellar remnant is what remains after a low- or medium-mass star has exhausted its nuclear fuel and shed its outer layers.
What is a white dwarf?
400
This scientific field studies celestial objects, space, and the universe as a whole.
What is astronomy?
400
the faint remnant glow of the big bang.
What is the cosmic microwave background radiation?
500
Everything we can see, out 13.7 billion light years in all directions.
What is the the observable Universe?
500
This widely accepted theory suggests that the Moon formed after a Mars-sized object collided with the young Earth, sending debris into orbit that eventually coalesced to form the Moon.
What is the giant impact hypothesis?
500
the type of star that is fusing hydrogen to helium in its core
What is a main sequence star?
500
This type of celestial body orbits the Sun, has enough mass to be spherical, but hasn’t cleared its orbital path of other debris.
What is a dwarf planet?
500
This is a well-substantiated explanation of some aspect of the natural world, developed through the scientific method, rigorously tested, and confirmed through observation and experimentation. It is the most reliable form of scientific knowledge and explains all available evidence.
What is a scientific theory?