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Sep 4, 2024 · Eventually, every satellite reaches the end of its life — and that often involves a fiery dive back through Earth’s atmosphere. But how often do satellites fall back to Earth, and what happens when they do?
- Jake Parks
3 days ago · Greenhouse gases are gas molecules that have the property of absorbing infrared radiation (net heat energy) emitted from Earth’s surface and reradiating it back to Earth’s surface, thus contributing to the phenomenon known as the greenhouse effect.
- Stephen T. Jackson
4 days ago · The greenhouse effect occurs when greenhouse gases in a planet's atmosphere insulate the planet from losing heat to space, raising its surface temperature. Surface heating can happen from an internal heat source as in the case of Jupiter, or from its host star as in the case of the Earth.
Sep 18, 2024 · Greenhouse effect, a warming of Earth’s surface and troposphere (the lowest layer of the atmosphere) caused by the presence of water vapor, carbon dioxide, methane, and certain other gases in the air. Of those gases, known as greenhouse gases, water vapor has the largest effect.
4 days ago · Effects of climate change are well documented and growing for Earth's natural environment and human societies. Changes to the climate system include an overall warming trend , changes to precipitation patterns , and more extreme weather .
Sep 15, 2024 · SpaceX's Polaris Dawn crew has returned to Earth after five days in orbit, following a historic mission featuring the world's first commercial spacewalk.. The Dragon capsule made splashdown off ...
Sep 21, 2024 · Deforestation, clearing or thinning of forests by humans to make the land available for other uses. Deforestation is a major driver of terrestrial habitat loss and habitat fragmentation and contributes to global warming. Learn about historical and modern deforestation and its effects.
