The universe is all planets, moons, minor planets, stars, galaxies, the content of intergalactic space and all matter and energy.
The Universe in physical science suggests everything, everywhere, all the space. In different words, all of space, time, and their content is the universe. It includes all the galaxies, black holes, stars, planets, and moons. It additionally includes all kinds of energy and matter.
Stephen Hawking Stephen Hawking (1942-2018) once said: “Look up at the stars and not down at your feet, try to be of what you see, and wonder about what makes the Universe exist. Be curious.”
Professor Hawking was a British theoretical scientist, cosmologist, author, and director of research at the Centre for Theoretical Cosmology. In 2016, Prof. Hawking advised that black holes could be portals to different universes, maybe black holes aren't ‘eternal prisons’ from t…