astriods comets and meteoroids
star life cycle
the big bang
galaxys
100
  • What is the difference between a meteoroid, a meteor, and a meteorite?

A meteoroid is a small rocky or metallic body traveling in space. A meteor is the streak of light we see when a meteoroid enters Earth's atmosphere and burns up due to friction. A meteorite is a piece of the meteoroid that survives its fiery journey through the atmosphere and lands on Earth's surface.

100
  • Where do stars form?

in dense, cold clouds of gas and dust known as molecular clouds, which are found in the interstellar medium of galaxies


100
  • What caused the Big Bang?

we currently dont know

100
  • What is the Milky Way galaxy made of?

stars, gas, dust, planets, and dark matter.

200
  • Is a "shooting star" a meteor, a meteorite, or a meteoroid?

A "shooting star" is a meteor

200
  • How does a nebula become a protostar?

when gravity causes a dense clump of gas and dust to collapse inward

200
  • How do we know the Big Bang happened?

the expation of the universe

200
  • What is a starburst galaxy?

a galaxy experiencing a rapid, intense rate of star formation, producing new stars hundreds or even thousands of times faster than typical galaxies like the Milky Way

300
  • Where is the main asteroid belt located in our solar system?

the region between the orbits of the planets Mars and Jupiter

300
  • How does a white dwarf form?

when a low to medium-mass star, like our Sun, runs out of nuclear fuel and sheds its outer layers

300
  • How did the first stars and galaxies form?

dense clumps of gas that collapsed under gravity a few hundred million years after the Big Bang

300
  • What is a galaxy?

a massive system of stars, gas, dust, and dark matter held together by gravity

400
  • Where do most comets originate?

the Kuiper Belt and the Oort Cloud

400
  • What happens during a supernova, and what is its result?

a star's core collapses under its own gravity, triggering a massive explosion that blasts the outer layers into space

400
  • What was the universe like before the Big Bang?

The state of the universe before the Big Bang is unknown

400
  • What are the largest galaxies in the universe?

IC 1101 and Alcyoneus,

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