"Our known Universe contains matter, radiation, and dark energy."
https://www.forbes.com/sites/startswithabang/2021/08/16/5-ways-that-dark-energy-might-not-determine-the-fate-of-our-universe/?sh=5f9fc66e4515
"Electromagnetic radiation is a type of energy that is commonly known as light."
https://lambda.gsfc.nasa.gov/product/suborbit/POLAR/cmb.physics.wisc.edu/tutorial/light.html
"Electromagnetic energy travels in waves and spans a broad spectrum from very long radio waves to very short gamma rays."
https://science.nasa.gov/ems/01_intro
"A black object absorbs all wavelengths of light and converts them into heat, so the object gets warm. A white object reflects all wavelengths of light, so the light is not converted into heat and the temperature of the object does not increase noticeably."
https://profound-answers.com/why-does-black-absorb-more-heat-than-light
"Black absorbs more heat because it also absorbs more light, and light energy changes into thermal energy, which gives off heat."
https://www.reference.com/science-technology/black-absorb-heat-987c976ffb13781a
"The average temperature of outer space near Earth is 283.32 kelvins (10.17 degrees Celsius or 50.3 degrees Fahrenheit)"
https://sciencing.com/temperatures-outer-space-around-earth-20254.html
"The Sun releases a constant stream of particles and magnetic fields called the solar wind. This solar wind slams worlds across the solar system with particles and radiation – which can stream all the way to planetary surfaces unless thwarted by an atmosphere, magnetic field, or both."
https://solarsystem.nasa.gov/resources/2288/the-solar-wind-across-our-solar-system/
"Solar wind is what's known as a plasma, a heated gas made up of charged particles — primarily protons and electrons, with trace amounts of heavier elements such as helium and oxygen. The amount of heavy elements and their charge state, or number of electrons, differ between the two types of wind."
https://www.nasa.gov/feature/goddard/2016/swept-up-in-the-solar-wind
"99.9 percent of the Universe is made up of plasma," says Dr. Dennis Gallagher, a plasma physicist at NASA's Marshall Space Flight Center. "Very little material in space is made of rock like the Earth."
https://science.nasa.gov/science-news/science-at-nasa/1999/ast07sep99_1/
"Maybe there was some strange kind of energy-fluid that filled space."
"It turns out that roughly 68% of the universe is dark energy."
https://science.nasa.gov/astrophysics/focus-areas/what-is-dark-energy
Our Motion Through Space Isn't A Vortex, But Something Far More Interesting
https://www.forbes.com/sites/startswithabang/2018/08/30/our-motion-through-space-isnt-a-vortex-but-something-far-more-interesting/?sh=220f80467ec2
"So, the energy required by a satellite to revolve around the earth is called its orbiting energy. Since this satellite revolves around the earth, it has kinetic energy and is in a gravitational field, so it has potential energy."
https://www.vedantu.com/physics/energy-of-an-orbiting-satellite
"In our solar system, planets move in a slightly elliptical orbit around the sun. The point at which a celestial body is farthest from the sun along its orbit is called its aphelion, and the point at which a celestial body is closest to the sun along its orbit is called its perihelion.
As an object's speed increases, its kinetic energy increases as well. This means that the kinetic energy of a planet is highest when it's at perihelion, since it moves faster when it's closer to the sun. On the flip side, a planet's kinetic energy will be smallest when it's at aphelion, which is where it's moving slowest along its orbit."
https://study.com/academy/lesson/how-orbits-are-influenced-by-gravity-energy.html
"Dark energy, in contrast to both forms of matter, is relatively uniform in time and space and is gravitationally repulsive, not attractive, within the volume it occupies. The nature of dark energy is still not well understood."
https://www.britannica.com/science/dark-energy
"Dark Energy is a hypothetical form of energy that exerts a negative, repulsive pressure, behaving like the opposite of gravity."
https://www.astronomy.swin.edu.au/cosmos/D/Dark+Energy
"Energy can be stored in an object (potential energy)"
https://vspages.com/static-energy-vs-kinetic-energy-1933/