The Help Zone is under renovation.

See if your question has already been asked!

Primaire 6 • March 4, 2025

What is a galaxy and how many total esimated galaxies are there?

Explanations (2)

Student Explanation

March 4, 2025

Hi! A galaxy is a huge collection of stars, planets, gas, dust, and dark matter, all held together by gravity. Our own solar system is part of the Milky Way, which is just one galaxy among so many! 🌌 Scientists estimate that there are about 2 trillion galaxies in the observable universe 🤩! That’s an incredible number, and there may even be more than we cannot identify with our current technologies. Here are some really interesting videos if you want to learn more about space : What is a Galaxy? - YouTube How Many Galaxies Are There? - YouTube How Big is The Universe? - YouTube Let us know if you have any other questions! 🌠

Alloprof Explanation

March 16, 2025

Hi, AdorablePearl8707 I will guide you to find the answer to your question. First of all, a galaxy is an assembly of stars, gas, planetary systems, dust sometimes containing a supermassive black hole at its centre. This assembly is bound together by gravitational forces. Galaxies can take various shapes such as spiral, elliptical and irregular forms. Also, it is estimated that there are approximately 2 trillion galaxies in the observable universe. However, this number isn't exact since it could change as observational technology improves. You can check this form to learn more about space and the galaxy.

Don't hesitate to ask us if you have any more questions. MercureTranquille1913