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Các nhà vật lý phát hiện sự tồn tại của sóng hấp dẫn, loại sóng được Albert Einstein tiên đoán trong thuyết tương đối cách đây 100 năm, ở hai hố đen vũ trụ. Trong cuộc họp báo diễn ra hôm qua tại Washington, Mỹ, ông David Reitze, giám đốc điều hành Trạm quan sát […]

Using ice core records from West Antarctica, researchers look back at the past 300 years of snowfall over the Amundsen Sea. By Lily Strelich  21 January 2016 Changes in Earth’s climate due to human activity have been a pressing issue for policy makers and community leaders around the world for years, and recent studies show that the […]

New research finds that Earth had sufficient oxygen 1.4 billion years ago for animals to evolve. Therefore, low oxygen levels probably didn’t hold back evolution, as scientists have long thought. Roughly 700 million years ago, animals that need oxygen began to evolve, although simpler forms of life fueled mainly by chemicals or sunlight had already […]

Currents off the coast of northern Brazil can be used to study changes in the larger oceanic circulation pattern in the Atlantic, when variable winds in the regions are properly accounted for. A sketch of the circulation pattern in the Atlantic Ocean. Credit: Böning/Scheinert (GEOMAR). Used with permission. In the Atlantic Ocean, water circulates like […]

A new compilation of underwater terrain provides the most up-to-date mapping of portions of the western Arctic and North Pacific.During the Arctic summer, the Sun barely dips below the horizon over the Beaufort Sea, north of Alaska and the Yukon Territory. This August 2015 photo, which depicts a region inside the Alaska Region Digital Elevation […]