Home/ Pranesh/Best Answers
  1. Asked: January 22, 2025In:

    What is dark energy?

    Pranesh
    Pranesh

    1. What is dark energy? Answer: Dark energy is a mysterious force that is driving the accelerated expansion of the universe and is thought to make up about 68% of the universe. 2. What is a black hole? Answer: A black hole is a region in space where gravity is so strong that not even light can escapRead more

    1. What is dark energy?

    Answer: Dark energy is a mysterious force that is driving the accelerated expansion of the universe and is thought to make up about 68% of the universe.

    2. What is a black hole?

    Answer: A black hole is a region in space where gravity is so strong that not even light can escape from it, typically formed from collapsing stars.

    3. What is the Big Bang?

    Answer: The Big Bang is the theory that the universe began from an extremely hot, dense state around 13.8 billion years ago and has been expanding ever since.

    4. What is a galaxy?

    Answer: A galaxy is a large system of stars, stellar remnants, interstellar gas, dust, and dark matter, bound together by gravity.

    5. How many galaxies are in the universe?

    Answer: There are estimated to be about 2 trillion galaxies in the observable universe.

    See less
  2. Asked: January 21, 2025In:

    What is space?

    Pranesh
    Pranesh
    This answer was edited.

    1. What is space? Answer: Space is the vast, seemingly infinite expanse beyond Earth’s atmosphere, where stars, planets, moons, and galaxies exist. 2. What is the universe? Answer: The universe is everything that exists, including all matter, energy, galaxies, stars, planets, and space-time itself.Read more

    1. What is space?

    Answer: Space is the vast, seemingly infinite expanse beyond Earth’s atmosphere, where stars, planets, moons, and galaxies exist.

    2. What is the universe?

    Answer: The universe is everything that exists, including all matter, energy, galaxies, stars, planets, and space-time itself.

    3. How big is the universe?

    Answer: The universe is estimated to be 93 billion light-years in diameter, and it continues to expand.

    4. What is a light-year?

    Answer: A light-year is the distance that light travels in one year, approximately 5.88 trillion miles (9.46 trillion kilometers).

    5. What is dark matter?

    Answer: Dark matter is an unknown form of matter that does not emit light or energy, but it is believed to make up about 27% of the universe’s mass.

    See less