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Global warming isn’t the only temperature rise we need to worry about – a new study suggests. Due to natural activity in the galaxy, the entire universe appears to be getting warmer.
A recent paper found in the Astrophysical Journal describes the thermal history of the universe over billions of years. The average gas temperature in the universe has increased more than 10 times over the past 10 billion years, the researchers wrote. Currently, the temperature of the gases closest to Earth is around four million degrees Fahrenheit.
Yi-Kuan Chaing of Ohio State University shared that their work confirms the research of Jim Peeble, who won the 2019 Nobel Prize in Physics. Peeble’s theoretical work and calculations focused on factors of how he formed the universe and on new physical processes such as the cosmic microwave background. His results showed that only 5% of the universe’s content is known for matter while the rest is unknown dark matter and dark energy.
Hot gases in the universe
The universe is made up of galaxies and clusters of galaxies that formed from dark matter and gas that collapse together due to gravity. On a smaller scale, this is what happens when the gravitational pull of two stars collide and cause black holes, affecting the movement of nearby cosmic bodies. On a large scale, astrophysics has worked to show that the center of all galaxies, including the Milky Way, is a supermassive black hole that affects the movement of everything within the galaxy.
Gravity unites dark matter, gases and galaxies in space as the universe evolves, Chiang explained. The resistance is “so violent that more and more gasoline is shocked and heated.” This also results in the Sunyaev-Zeldovich effect or a change in the brightness of the cosmic microwave background radiation near clusters of galaxies or areas of hot gas.
To analyze the temperature of the universe, the team examined eight sky intensity maps from the Planck and Infrared Astronomical Satellite missions, as well as two million redshift spectroscopic references in the Sloan Digital Sky Surveys. Redshift refers to how light travels as space objects move closer to or away from Earth, allowing scientists to measure how the universe has expanded.
Read also: Star flares affect the habitability of exoplanets
The universe of warming and global warming are unrelated
The redshift effect typically refers to distant objects causing a longer wavelength of light. Objects further away from Earth also mean that the light is older than objects close to Earth. This was also how the team confirmed Jim Peeble’s theories about the temperatures of the early universe.
The maps and images of the missions revealed the distances of hot gases in the universe. The gravitational collapse of the cosmic structure means that the universe has gotten warmer over the past billion years and will most likely continue.
The warming of the universe explained Chiang due to the natural processes of galaxies and the formation of the structure. This too is completely unrelated to climate change on earth. “These phenomena are happening on very different scales [and]… they are not connected at all, “he clarified.
Read also: NASA’s Hubble Space Telescope detects the galaxy moving away from Earth at 3 million miles per hour
Find out more news and information about Galaxies in the Science Times.
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