That's the Big Bang.
universe
Energy that comes from the tiniest particles of matter is called nuclear energy. This energy is released during nuclear reactions such as fusion or fission of atoms. It is a powerful and concentrated form of energy that has the potential to generate electricity.
The study of the relationship between matter and energy is called physics. This field explores how matter and energy interact and influence each other in various phenomena and systems in the universe.
Dark matter. It is theorized to make up approximately 27% of the universe's total mass-energy content. Its presence is inferred from its gravitational effects on visible matter.
It is believed that about 4% of the mass in the Universe is normal matter. About 23% is dark matter (matter of unknown composition), the remainder being something even more mysterious called dark energy. I suggest searching the Wikipedia for "dark matter" and "dark energy", for more details about both.
Universe
universe
That's because the Universe really is expanding. It started as a "big bang", where all the matter and energy in the Universe was concentrated in a tiny space, smaller than an atom - at a tremendous temperature and pressure. From there it started expanding, and continues expanding to this day.That's because the Universe really is expanding. It started as a "big bang", where all the matter and energy in the Universe was concentrated in a tiny space, smaller than an atom - at a tremendous temperature and pressure. From there it started expanding, and continues expanding to this day.That's because the Universe really is expanding. It started as a "big bang", where all the matter and energy in the Universe was concentrated in a tiny space, smaller than an atom - at a tremendous temperature and pressure. From there it started expanding, and continues expanding to this day.That's because the Universe really is expanding. It started as a "big bang", where all the matter and energy in the Universe was concentrated in a tiny space, smaller than an atom - at a tremendous temperature and pressure. From there it started expanding, and continues expanding to this day.
The Big Bang. It is the prevailing scientific theory for the earliest known event in the universe's history, where all matter and energy were concentrated in a hot, dense state before rapidly expanding.
Energy that comes from the tiniest particles of matter is called nuclear energy. This energy is released during nuclear reactions such as fusion or fission of atoms. It is a powerful and concentrated form of energy that has the potential to generate electricity.
The study of the relationship between matter and energy is called physics. This field explores how matter and energy interact and influence each other in various phenomena and systems in the universe.
A scientist who studies matter is called a physicist. Physicists study the properties and behavior of matter and energy in the universe.
The rapid expansion of space and matter is referred to as the "Big Bang." This event, which occurred approximately 13.8 billion years ago, marks the beginning of the universe, when all matter and energy were concentrated in an extremely hot and dense state before expanding dramatically. The subsequent expansion continues today, leading to the observable universe we see now.
If enough is concentrated matter can be created from energy.
The Universe contains matter, energy, dark matter, dark energy, empty space - and of course, lots of structures made up of those.The Universe contains matter, energy, dark matter, dark energy, empty space - and of course, lots of structures made up of those.The Universe contains matter, energy, dark matter, dark energy, empty space - and of course, lots of structures made up of those.The Universe contains matter, energy, dark matter, dark energy, empty space - and of course, lots of structures made up of those.
Dark matter. It is theorized to make up approximately 27% of the universe's total mass-energy content. Its presence is inferred from its gravitational effects on visible matter.
It is believed that about 4% of the mass in the Universe is normal matter. About 23% is dark matter (matter of unknown composition), the remainder being something even more mysterious called dark energy. I suggest searching the Wikipedia for "dark matter" and "dark energy", for more details about both.