Reference Terms
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Global Positioning System
The Global Positioning System, usually called GPS, is the Earth's only fully-functional satellite navigation system.
Note: The above text is excerpted from the Wikipedia article "Global Positioning System", which has been released under the GNU Free Documentation License.
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Earth & Climate News
January 15, 2025
Jan. 13, 2025 — Scientists have mapped the amount of water stored beneath volcanic rocks at the crest of the central Oregon Cascades and found an aquifer many times larger than previously estimated -- at least 81 cubic kilometers. The finding has implications for ...
Jan. 10, 2025 — A whitish, grey patch that sometimes appears in the night sky alongside the northern lights has now been ...
Jan. 10, 2025 — The way cricket frogs move across the surface of water has long been thought to resemble walking on water, but researchers have now discovered a different ...
Jan. 9, 2025 — Hydroclimate whiplash -- rapid swings between intensely wet and dangerously dry weather -- has already increased globally due to climate change, with further large increases expected as warming continues, according to a team of ...
Latest Headlines
updated 12:56 pm ET
Jan. 15, 2025 — The three-dimensional shape of a protein can be used to resolve deep, ancient evolutionary relationships in the tree of life, according to a new study. It is the first time researchers use data from ...
Jan. 15, 2025 — Methane from the destroyed Nord Stream pipelines spread over a large part of the southern Baltic Sea and remained for several ...
Jan. 15, 2025 — Understanding biological relationships is often critical when studying animal populations. Researchers have now developed a transformative approach that identifies stretches of DNA that two ...
Jan. 15, 2025 — The Atlantic Meridional Overturning Circulation (AMOC) has not slowed down since the mid-20th century based on the North Atlantic air-sea heat fluxes over that time. This finding contrasts with ...
Jan. 15, 2025 — Experts are warning of the risks of spreading invasive and non-native species when moving large volumes of untreated lake, reservoir and river ...
Jan. 15, 2025 — Small-scale fisheries play a significant but overlooked role in global fisheries production and are key to addressing hunger and malnutrition while supporting livelihoods around the world, according ...
Jan. 15, 2025 — Researchers have discovered a biological mechanism that makes plant roots more welcoming to beneficial soil ...
Jan. 14, 2025 — Beneath sandy beaches, microbes filter chemicals from groundwater and safeguard ocean health. A new study reveals that sneaker waves provide a lens ...
Jan. 14, 2025 — Federal reservoirs could help meet the country's solar energy needs, according to a new study. Geospatial scientists and senior legal and regulatory analyst quantified exactly how much energy could ...
Jan. 14, 2025 — Using 22 years of LEMIS data, a recent study explores the dimensions of wildlife trade and obtain one of the most comprehensive overviews to date. The study reveals striking findings: between 2000 ...