https://www.nasa.gov/universe/nasas-webb-reveals-an-exoplanet-atmosphere-as-never-seen-before/
Among the unprecedented revelations is the first detection in an exoplanet atmosphere of sulfur dioxide (SO2), a molecule produced from chemical reactions triggered by high-energy light from the planet's parent star. On Earth, the protective ozone layer in the upper atmosphere is created in a similar way. "This is the first time we see

https://www.space.com/trappist-1-exoplanet-habitability-atmospheric-stripping
Ways to strip an exoplanet's atmosphere. Trappist-1e is roughly Earth-sized, yet has around 0.7 times the mass of our planet. It is the fourth planet from its star, orbiting at just 0.028 times

https://www.cnn.com/2023/04/04/world/exoplanet-radio-signal-scn/index.html
"There should also be aurora on the planet if it has its own atmosphere." Rocky exoplanet candidate The researchers think that YZ Ceti b is the best candidate spotted so far for a rocky

https://www.livescience.com/64825-why-earth-has-an-atmosphere.html
That is, why does Earth have an atmosphere? In short, our atmosphere is here because of gravity. When Earth formed, about 4.5 billion years ago, the molten planet barely had an atmosphere. But as

https://phys.org/news/2021-03-simulations-earth-oxygen-rich-atmosphere-billion.html
If a planet has a lot of methane in its atmosphere, life is the most likely cause. Dec 24, 2020. Computer model shows ancient Earth with an atmosphere 70 percent carbon dioxide.

https://www.extremetech.com/science/trappist-1-planet-may-be-boiling-its-own-atmosphere
The new study, led by Ofer Cohen from the University of Massachusetts Lowell, posits a second mechanism that could contribute to the loss of atmosphere. The rapid orbit around a star like TRAPPIST

https://thenextweb.com/news/exoplanet-shed-and-regrew-second-atmosphere-syndication
March 17, 2021 - 3:00 pm. The hellish world of GJ 1132 b, discovered in 2015, is only 60% more massive than Earth and is roughly the same age as our home planet. Even the atmospheric pressure at

https://scijinks.gov/atmosphere-formation/
Earth's original atmosphere was probably just hydrogen and helium, because these were the main gases in the dusty, gassy disk around the Sun from which the planets formed. The Earth and its atmosphere were very hot. Molecules of hydrogen and helium move really fast, especially when warm. Actually, they moved so fast they eventually all

https://www.nationalgeographic.org/encyclopedia/atmosphere/
mesosphere. noun. region in Earth's atmosphere between the stratosphere and the thermosphere, about 50-80 kilometers (31-50 miles) above the Earth's surface. meteor. noun. rocky debris from space that enters Earth's atmosphere. Also called a shooting star or falling star. ozone layer. noun.

https://scied.ucar.edu/learning-zone/atmosphere/what-is-atmosphere
Nitrogen and oxygen are by far the most common gases in our atmosphere. Dry air is composed of about 78% nitrogen (N 2) and about 21% oxygen (O 2). The remaining less than 1% of the atmosphere is a mixture of gases, including argon (Ar) and carbon dioxide (CO 2). The atmosphere also contains varying amounts of water vapor, on average about 1%.

https://www.nationalgeographic.org/article/parts-atmosphere/
Vocabulary. We live at the bottom of an invisible ocean called the atmosphere, a layer of gases surrounding our planet. Nitrogen and oxygen account for 99 percent of the gases in dry air, with argon, carbon dioxide, helium, neon, and other gases making up minute port ions. Water vapor and dust are also part of Earth 's atmosphere.

https://www.theatlantic.com/science/archive/2021/06/raindrops-exoplanets-same-size-earth/619198/
Not on a sun-soaked beach, but on another world in the middle of its own rainstorm. ... The moon's atmosphere absorbs some of the colors that shine through in our rainbows, so a Titan rainbow

https://scied.ucar.edu/learning-zone/atmosphere/layers-earths-atmosphere
Earth's atmosphere is composed of a series of layers, each with its own specific traits. Moving upward from ground level, these layers are called the troposphere, stratosphere, mesosphere, thermosphere, and exosphere. The exosphere gradually fades away into the realm of interplanetary space. The layers of the atmosphere: the troposphere

https://www.nasa.gov/general/what-is-earths-atmosphere/
1. Troposphere. The troposphere is the lowermost atmospheric layer. The troposphere holds all the air plants need for photosynthesis and animals need to breathe. Earth's weather occurs in this layer, as it is where much of the atmospheric mass, including most of the water vapor, is found. The troposphere is also the densest atmospheric layer due to compression from the upper layers.

https://spaceplace.nasa.gov/atmosphere/en/
What is Earth's atmosphere? Earth's atmosphere is similar to a jacket for our planet. It surrounds our planet, keeps us warm, gives us oxygen to breathe, and it is where our weather happens. Earth's atmosphere has six layers: the troposphere, the stratosphere, the mesosphere, the thermosphere, the ionosphere, and the exosphere.

https://en.wikipedia.org/wiki/Atmosphere
An atmosphere (from Ancient Greek ἀτμός (atmós) 'vapour, steam', and σφαῖρα (sphaîra) 'sphere') [1] is a layer of gasses that envelop an astronomical object, held in place by the gravity of the object. A planet retains an atmosphere when the gravity is great and the temperature of the atmosphere is low. A stellar atmosphere is

https://www.britannica.com/science/atmosphere/The-atmospheres-of-other-planets
Atmosphere - Planets, Composition, Pressure: Astronomical bodies retain an atmosphere when their escape velocity is significantly larger than the average molecular velocity of the gases present in the atmosphere. There are 8 planets and over 160 moons in the solar system. Of these, the planets Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune have significant atmospheres.

https://mahb.stanford.edu/library-item/restoration-rebirth-earth-atmosphere/
Year of Publication: 2018. Author (s): Thomas Boudreau Ph.D. The need to mobilize the world's states, peoples, and resource to restore the global atmosphere to levels of 400 ppm as the immediate challenge of humanity in order to survive climate change. This can be done using a variety of mitigation methods, including negative emissions, but

https://education.nationalgeographic.org/resource/resource-library-atmosphere/
One of the main components of Earth's interdependent physical systems is the atmosphere. An atmosphere is made of the layers of gases surrounding a planet or other celestial body. Earth's atmosphere is composed of about 78% nitrogen, 21% oxygen, and one percent other gases. These gases are found in atmospheric layers (troposphere, stratosphere, mesosphere, thermosphere, and exosphere

https://www.britannica.com/science/atmosphere
atmosphere, the gas and aerosol envelope that extends from the ocean, land, and ice -covered surface of a planet outward into space. The density of the atmosphere decreases outward, because the gravitational attraction of the planet, which pulls the gases and aerosols (microscopic suspended particles of dust, soot, smoke, or chemicals) inward

https://en.wikipedia.org/wiki/Atmosphere_of_Earth
The study of Earth's atmosphere and its processes is called atmospheric science (aerology), and includes multiple subfields, ... an atmosphere may no longer be well mixed. Then each chemical species has its own scale height. In summary, the mass of Earth's atmosphere is distributed approximately as follows: 50% is below 5.6 km (18,000 ft).

https://science.nasa.gov/earth/earth-atmosphere/the-atmosphere-earths-security-blanket/
Further, about 80 percent of the atmosphere is contained within its lowest layer, the troposphere, which is, on average, just 12 kilometers (7.5 miles) thick. ... A study using these data showed how the Amazon initiates its own rainy season. In addition, TES provided new information about ammonia, a precursor to harmful aerosols; and new

https://www.worldatlas.com/space/does-the-sun-have-an-atmosphere.html
The sun does have an atmosphere. The three layers mainly focused on are the photosphere, the chromosphere, and the corona. The photosphere is also known as the surface of the sun, while the chromosphere and the corona are referred to as the lower and upper atmosphere, respectively. As you get further away from the sun's core, it would make

https://www.npr.org/2024/06/24/1198910309/earth-living-planet-environment
The Amazon does that by launching bits of biological confetti into the atmosphere that, in turn, seed clouds. After learning this, he began looking for other ways life changes its environment.

https://phys.org/news/2024-06-earth-atmosphere-defense-nearby-supernovae.html
Earth's protective atmosphere has sheltered life for billions of years, creating a haven where evolution produced complex lifeforms like us. The ozone layer plays a critical role in shielding the

https://www.nature.com/articles/s43247-024-01490-9
Ruderman 7 was the first to suggest that increased cosmic radiation from a nearby SN may deplete Earth's atmospheric ozone. A number of studies 4,8,9,10,11 have corroborated this conclusion

https://www.mcgill.ca/oss/article/critical-thinking-environment/trail-chemtrail-nonsense
This prompted a group of scientists headed by Steven Davis of the University of California to carry out its own survey among atmospheric chemists with expertise in condensation trails and geochemists working on atmospheric deposition of dust and pollution. ... speaks of the government "intentionally dispersing chemicals into the atmosphere

https://www.pressherald.com/2024/06/14/celebrate-juneteenth-at-these-maine-events/
1-6:30 p.m. - The first event of "The City that Carries Us: Pain, Streets, and Heartbeats" will take place at the Public Theatre in Lewiston.The celebration will have a parade and a block