How to Use exosphere in a Sentence

exosphere

noun
  • About four hundred miles above the Earth, the exosphere begins.
    — Raffi Khatchadourian, The New Yorker, 21 Sep. 2020
  • The art from the winners will debut on the exosphere on July 4.
    — Carolyn Giardina, Variety, 14 Mar. 2024
  • And charged particles in the exosphere can be carried around and away from the planet by the magnetic field.
    — Lisa Grossman, WIRED, 15 July 2010
  • The total amount of gas in the lunar exosphere is tiny, perhaps 100 tons in total.
    — The Physics Arxiv Blog, Discover Magazine, 31 May 2023
  • Io’s exosphere can extend up to 500 times Jupiter’s radius, Oza says.
    — Rebecca Boyle, Scientific American, 1 Mar. 2021
  • The origin of that exosphere had been uncertain since its discovery in the 1970s.
    — Jonathan O’Callaghan, Discover Magazine, 21 Oct. 2024
  • But each Apollo lander injected about 20 tons of gas into the exosphere in the form of rocket exhaust.
    — The Physics Arxiv Blog, Discover Magazine, 31 May 2023
  • Astronomers have for decades been aware of the delicate atmosphere surrounding the moon that is so thin and fragile that it's better referred to as an exosphere.
    — Eric Lagatta, USA TODAY, 12 Aug. 2024
  • The spacecraft has two spectrometers that will be analyzing the exosphere.
    — Joe Pappalardo, Popular Mechanics, 9 Sep. 2013
  • The mysterious moon has a very, very thin atmosphere, called an exosphere, that’s rich in carbon dioxide, and trace amounts of oxygen and nitrogen.
    — Jennifer Leman, Popular Mechanics, 7 Apr. 2020
  • The Moon’s exosphere is made up of elements such as argon, helium, oxygen, and potassium.
    — Jonathan O’Callaghan, Discover Magazine, 21 Oct. 2024
  • Objectives included study of the lunar exosphere, thermal properties and the amount of hydrogen in the lunar soil.
    — George Petras, USA TODAY, 20 Jan. 2024
  • Meanwhile, in the low exosphere, the environment continues to degrade.
    — Raffi Khatchadourian, The New Yorker, 21 Sep. 2020
  • So, the question remains how Titan maintains its thick atmosphere over timescales of billions of years and why other such icy moons appear to only have thin exospheres.
    — Bruce Dorminey, Forbes, 10 Oct. 2024
  • The craft will attempt to land near Boguslawsky crater in the Moon’s south polar region to study components of the lunar polar exosphere.
    — Mac Stone, Discover Magazine, 11 Jan. 2023
  • The hydrogen atoms in the exosphere generate a faint glow called the geocorona, which is only detectable in ultraviolet light at great distances.
    — Kyle Orland, ArsTechnica, 24 Sep. 2025
  • Because nitrogen is a volatile chemical, some of it sublimates and gives Pluto a tenuous atmosphere still thick enough to be more than an exosphere.
    — John Wenz, Popular Mechanics, 17 July 2015
  • The exosphere is also the path by which the Earth is (very) slowly losing atomic hydrogen from water vapor lofted high into the atmosphere.
    — Kyle Orland, ArsTechnica, 24 Sep. 2025
  • This is way beyond Mars’ normal weather, reaching into the exosphere where the atmosphere merges with interplanetary space.
    — Christian Schroeder, Discover Magazine, 17 Feb. 2015
  • Mercury has what’s called an exosphere made from solar-wind propelled oxygen, sodium, hydrogen, helium, and potassium atoms that have bounced off the planet's surface.
    — Jennifer Leman, Popular Mechanics, 9 Nov. 2019
  • These elements are linked to both processes, indicating that both micrometeoroids and solar wind added to the Moon’s exosphere.
    — Jonathan O’Callaghan, Discover Magazine, 21 Oct. 2024
  • Its thin exosphere offers almost no protection from solar radiation, making this twilight boundary a literal knife-edge of danger.
    — Kaif Shaikh, Interesting Engineering, 13 Nov. 2025
  • Giant Steps set a new benchmark for virtuosity and harmonic complexity, a manned probe into jazz’s exosphere.
    — Julian Sancton, Billboard, 5 May 2017
  • Additional plans call for Formula One content to be displayed on the exosphere during the race, while an afterparty for the drivers will be held at Sphere.
    — Alex Weprin, The Hollywood Reporter, 21 Sep. 2023
  • Advertisement The exosphere — the skin of the venue — will show real-time driver information during the race, along with live content and the postrace podium celebration.
    — Sam Farmer, Los Angeles Times, 16 Nov. 2023
  • The Carruthers mission will capture images of the region’s faint ultraviolet glow, called the geocorona, to help answer questions about the exosphere’s shape, size and density.
    — Ashley Strickland, CNN Money, 24 Sep. 2025
  • The problem is that if there really are 1,000 ions per cubic centimeter, the ionization of gas in the lunar exosphere can’t account for such a high concentration—there just isn’t enough gas.
    — Daniel Oberhaus, WIRED, 16 July 2019
  • The camera, still in place in the Descartes highland region on the moon, photographed Earth in ultraviolet light and captured the first image of the exosphere in 1972.
    — Ashley Strickland, CNN Money, 24 Sep. 2025
  • Instead scientists refer to its extremely thin covering of oxygen, hydrogen, sodium, helium, and potassium as an exosphere.
    — National Geographic, 27 Mar. 2019
  • Orbits of the Earth ultimately decay, as faint traces of the exosphere produce drag, causing a circling object eventually to plunge into the atmosphere and incinerate.
    — Jeffrey Kluger, Time, 14 Nov. 2025

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'exosphere.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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