Polina eta iune presentation: the space
Published on: Mar 4, 2016
Transcripts - Polina eta iune presentation: the space
The universe is all the matter and space that exist . It includes many diferent celestial bodies like galaxies, stars, planets, satellites, comets, asteroides and meteorites. The universe also contains gases and cosmic dust.
The most famous explanation is the “Big bang theory”. This theory says that all the matter ion the universe was once together in one place-
A galaxy is a an enormous cloud of stars and others celestials bodies. There are Elliptical, Irregular, Spiral and Spherical. The universe contains billions of galaxies. We live in the Milky way galaxy.
Differences between stars and planetsThe planets are large spherical bodies and they don´t produce natural light. The stars are celestial bodies and they produce enormous cuantity of light and heat.
Differences between asteroides, comets and meteoritesThe asteroides are bodies of rock and they move around the Kuiper belt between mars and Jupiter.
The comets are bodies of rock and ice. They revolve around the sun.
The meteorites are small pieces of rock. That travel around the space.