What is a huge collection of stars called?
A huge collection of gas, dust, and billions of stars is called a Galaxy.
CH 1 THE EARTH IN THE SOLAR SYSTEM
A group of stars is called?
A constellation is a group of stars that appears to form a pattern or picture like Orion the Great Hunter, Leo the Lion, or Taurus the Bull. Constellations are easily recognizable patterns that help people orient themselves using the night sky. There are 88 “official” constellations.
why all the planets move around the sun?
The gravity of the Sun keeps the planets in their orbits. They stay in their orbits because there is no other force in the Solar System which can stop them.
why earth is called a unique plante?
Earth has oxygen, water and temperature. Air water and temperature are in balanced proportions in our planet and support life. All these conditions which are supporting life, like presence of water and air in a good proportion, presence of life supporting gas and balanced temperature make earth a unique planet.
what does a planets diffrent from stars?
Planets in orbits spin on their own axis and change their positions constantly. Stars consist of matter like Hydrogen, Helium, and other light elements. Planets, on the other hand, contain solids, liquids, gases, or a combination thereof. Thus, this is the basic difference between stars and planets.
What is universe one word answer?
(juːnɪvɜːʳs ) Word forms: plural universes. 1. countable noun. The universe is the whole of space and all the stars, planets, and other forms of matter and energy in it.
what do you mean by universe?
all existing matter and space considered as a whole; the cosmos. The universe is believed to be at least 10 billion light years in diameter and contains a vast number of galaxies; it has been expanding since its creation in the Big Bang about 13 billion years ago.
what is meteoroids?
a small body moving in the solar system that would become a meteor if it entered the earth’s atmosphere.
Why do asteroids hit Earth?
Why do asteroids hit Earth? Space is really empty and big, but there is also a lot of stuff out there, and Earth is a big target with big gravity, so things run into Earth or Earth runs into them.
Are asteroids a Threat to Earth?
Most of the asteroids and comets in our solar system do not pose any danger to our planet. But, for every thousand or so of those objects there is one with an orbit crosses that of Earth, posing the possibility of a collision at some future time.