The ozone layer is a stratospheric region characterized by elevated concentrations of ozone (O₃), typically peaking between 15 and 35 km altitude, where photochemical equilibrium between ozone production and destruction governs its vertical structure and temporal variability. It forms primarily via UV-driven dissociation of molecular oxygen, followed by three-body recombination, and is depleted through catalytic cycles involving halogen radicals (e.g., ClO, BrO), HOx, and NOx species. As a central topic in atmospheric science, research on the ozone layer focuses on radiative transfer, stratospheric chemistry, dynamics–chemistry coupling, and the impacts of anthropogenic halocarbons and their regulation on global ozone distribution and recovery.
Every year, we shoot several thousand satellites and other objects out into space. When satellites die, they become space trash that threatens aerospace safety.
Space Exploration
Oct 22, 2025
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81
A rare glimpse into the wintry conditions of the Mars north polar vortex has shown that temperatures inside the vortex are far colder than outside, and that the permanent darkness that winter brings to the Martian north pole ...
Planetary Sciences
Sep 17, 2025
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34
On 16 September, the world marks the international day for the preservation of the ozone layer—a day of action initiated by the United Nations. This year's theme is "from science to global action"—a reference to the fact ...
Earth Sciences
Sep 16, 2025
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The world will warm more than expected due to future changes in ozone, which protects the Earth from harmful sun rays but also traps heat as it is a greenhouse gas.
Earth Sciences
Aug 20, 2025
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236
The rapid rise in global rocket launches could slow the recovery of the vital ozone layer, says Sandro Vattioni. The problem is being underestimated—yet it could be mitigated by forward-looking, coordinated action.
Space Exploration
Jul 19, 2025
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400
The international space industry is on a growth trajectory, but new research shows a rapid increase in rocket launches would damage the ozone layer.
Space Exploration
Jun 10, 2025
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53
Just because we can find ozone in the atmosphere of other planets doesn't mean there's life. Ozone is a sign of life on Earth, but its detection on Venus shows that it can also be produced abiotically. This indicates that ...
Astrobiology
May 30, 2025
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57
New research suggests that the negative effects of the ozone hole on the carbon uptake of the Southern Ocean are reversible, but only if greenhouse gas emissions rapidly decrease.
Earth Sciences
May 16, 2025
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159
