How big is the universe

Q: Olbers's paradox is solved in part by the fact that the universe is neither infinitely large nor…

A: Olber's paradox is solved by fact that universe is expanding.

Q: What major factor determines the future of the universe? Why?

A: Earlier cosmologist believed that due to gravity of supermassive black holes and many other massive…

Q: Astronomers frequently say that “there are more stars in the universe than there are grains of sand…

A:

Q: how everything in the universe come to exist?   list the different theories on the origin of the…

A:

Q: What is the densest subsatnce in the universe?

A: At a modest temperature and pressure the most densest element on Earth surface is Osmium.

Q: The Big Bang that began the universe is estimated to have released 1068 J of energy. How many stars…

A:

Q: By the term universe, astronomers mean:

A: Planets, stars, galaxies, light, and even the vacuum between these entities are all included in the…

Q: State the grand unified theory.

A: There are four fundamental forces in nature: Electromagnetic forces. Gravitational forces. Strong…

Q: About what percentage of the universe is believed to be composed of normal matter? O 5% O > 22% O…

A: 68% of the matter is dark energy. 27% of the matter is dark matter. Rest less or equal to 5% is…

Q: When the universe was approximately one second old its size grew by a factor of 10 to the power of…

A: When the universe was approximately one second old its size grew by a factor of 10 to the power of…

Q: Earth Life Geosphere Atmosphere Quarks Light Elements Heavy Elements Atoms Galaxies Protostars Solar…

A: Step 1 Given that, the following components of the physical world are according to their temporal…

Q: What is sankey diagram?

A: A Sankey diagram is a kind of flow diagram. In Sankey diagrams, the width of the arrows is…

Q: Put these in order from smallest to largest Universe Galaxy Solar system Distance between earth and…

A: Here we arrange these things on the bases of their size in increasing order.

Q: The Whirlpool galaxy is about 30 million light-years away. If you were in a spaceship that could…

A: The time taken by the person to reach the Whirlpool galaxy according to an observer on Earth is…

Q: Which statement below does not fit the model of the big bang and the subsequent changes in the…

A:

Q: Despite its age, the size of the universe by diameter is the following: a) 13.8 x 10^9 ly  b) 10 x…

A: The age of the universe is considered to be 13.7 billion years. A light-year is a unit of distance.…

Q: Which statement best describes the Big Bang Theory? Galaxies within the universe collided about 13.5…

A:

Q: How many galaxies are there in the universe?

A: A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and…

Q: What is the Cyclotron?

A: A cyclotron is a type of particle accelerators. It accelerates the charged particles. It provides a…

Q: Astronomers frequently say that “there are more stars in the universe than there are grains of sand…

A:

Q: The Analysis of the Big Bang Theory.

A: Universe is the whole yonder which consists of many many miles of life both living and unliving. Its…

Q: Which of the following might you expect to be an additional consequence of the fact that galaxies…

A: Given Which of the following might you expect to be an additional consequence of the fact that…

Q: How many atomic nuclei (diameter = 1 × 10¬1 cm) would it take to stretch from one end of the known…

A: diameter of atomic nuclei (d) = 10-13 cm = 10-15 m distance of one end of universe to its other end…

Q: Describe the age and temperature of stars that make up spiral galaxies and their location.

A: A galaxy can be bombarded by other, smaller galaxies. Even if a galaxy is isolated, internal…

Q: Astronomers frequently say that "there are more stars in the universe than there are grains of sand…

A:

Q: The galaxy picture below would best be classified as O Elliptical galaxy O Spiral Galaxy

A: Spiral galaxy

Q: Explain how astronomers determined that the universe is expanding.

A: In universe there are millions of stars. These stars are always moving towards Earth or away from…

Q: Explain Birth of the earth in light of Big Bang Q.3. theory.

A: The Big Bang theory explains the origin of the universe.But not the origin of earth.  We know that…

Q: billion .stars in the Milky Way 100 and 300 O 100 and 400 O 100 and 200 O 100 and 500 O No one of…

A:

Q: Our sun was born approximately 4.6 billion years ago. How many journeys around the centre of our…

A:

Q: Please list 4 different forms of energy present in the universe?

A: Given that: Please list 4 different forms of energy present in the universe?

Q: What do you mean by Cosmology?

A: Cosmology is a branch of astronomy that concerns the study of the origin and evolution of the…

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.