1.can you tell me what is dark matter and normal matter and dark energy in space . And there are how many galaxies .
2.And which galaxy has planet .
3.which is the biggest star in the universe 4. How black hole formed.
5. what happened when two neutron star collapse with each other.
6. smallest star in the universe
7.which planet is mostly dusty and has the tallest mountain in the universe and name the mountain
,8. what sun need to refill his energy
Answers
Answer:
1: Dark mater:
Roughly 80% of the mass of the universe is made up of material that scientists cannot directly observe. Known as dark matter.
Normal mater:
Normal matter consists of the atoms that make up stars, planets, human beings and every other visible object in the Universe.
dark energy in space:
In physical cosmology and astronomy, dark energy is an unknown form of energy that affects the universe on the largest scales.
how many galaxy are there:
two million million—galaxies
2:And which galaxy has planet :
Our Milky Way Galaxy is just one of billions of galaxies in the universe. Within it, there are at least 100 billion stars, and on average, each star has at least one planet orbiting it.
3:which is the biggest star in the universe:
The largest known star in the universe is UY Scuti, a hypergiant with a radius around 1,700 times larger than the sun.
4:How black hole formed:
Most black holes form from the remnants of a large star that dies in a supernova explosion. (Smaller stars become dense neutron stars, which are not massive enough to trap light.)
5:what happened when two neutron star collapse with each other.
When two neutron stars orbit each other closely, they spiral inward as time passes due to gravitational radiation. When they meet, their merger leads to the formation of either a heavier neutron star or a black hole, depending on whether the mass of the remnant exceeds the Tolman–Oppenheimer–Volkoff limit.
6:smallest star in the universe:
The smallest star ever recorded — one about the size of Saturn — has been discovered by a team of astronomers, according to a study released Tuesday. With the unwieldy name of EBLM J0555-57Ab, the star is located some 600 light-years away in our Milky Way galaxy.
7:
which planet is mostly dusty and has the tallest mountain in the universe and name the mountain.
The highest mountain and volcano in the Solar System is on the planet Mars. It is called Olympus Mons and is 16 miles (24 kilometers) high which makes it about three times higher than Mt. Everest.
8:what sun need to refill his energy.
Solar energy is created by nuclear fusion that takes place in the sun. Fusion occurs when protons of hydrogen atoms violently collide in the sun's core and fuse to create a helium atom. This process, known as a PP (proton-proton) chain reaction, emits an enormous amount of energy.
Explanation:
please mark me a brainlist