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1 day ago · The atmosphere of Earth is the planetary atmosphere of Earth, composed of a layer of gas mixture that surrounds the Earth's planetary surface (both lands and oceans), known collectively as air, with variable quantities of suspended aerosols and particulates (which create weather features such as clouds and hazes), all retained by ...
2 days ago · Earth - Atmosphere, Climate, Ozone: Earth is surrounded by a relatively thin atmosphere (commonly called air) consisting of a mixture of gases, primarily molecular nitrogen (78 percent) and molecular oxygen (21 percent).
6 days ago · Most atmospheric absorption takes place at ultraviolet and infrared wavelengths, so more than 90 percent of the visible portion of the solar spectrum, with wavelengths between 0.4 and 0.7 μm (0.00002 to 0.00003 inch), reaches the surface on a cloud-free day.
Jun 28, 2024 · air, mixture of gases comprising the Earth’s atmosphere. The mixture contains a group of gases of nearly constant concentrations and a group with concentrations that are variable in both space and time.
Jun 27, 2024 · Unexpected X-Shaped Crests from Quiet Conditions. The ionosphere is sensitive to disturbances from both space and terrestrial weather. GOLD has previously revealed that after a solar storm or huge volcanic eruption, the crests in the ionosphere can merge to form an X shape.
6 days ago · NASA scientists have discovered something of an alphabet soup in the ionosphere, the part of Earth's atmosphere that sits about 48–965 kilometers (30–600 miles) above our heads – and the finding could help improve space weather forecasts and radio communications.
Jun 13, 2024 · Earth's atmosphere is the right thickness to keep the planet warm so living things like us can be there. It’s the only planet in our solar system we know of that supports life. It is mostly nitrogen, and it has plenty of oxygen for us to breathe.
