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E.g., 10/22/2018
E.g., 10/22/2018
Your search has returned 331 images:
  • mounds in the rock record
  • cyanobacteria
  • Hurricane Harvey flooding
Your search has returned 1048 articles:
  • News

    These ancient mounds may not be the earliest fossils on Earth after all

    Tiny mounds touted as the earliest fossilized evidence of life on Earth may just be twisted rock.

    Found in 3.7-billion-year-old rocks in Greenland, the mounds strongly resemble cone-shaped microbial mats called stromatolites, researchers reported in 2016. But a new analysis of the shape, internal layers and chemistry of the structures suggests that the mounds weren’t shaped by microbes...

    10/17/2018 - 13:00 Earth, Paleontology, Microbes
  • News

    These light-loving bacteria may survive surprisingly deep underground

    Deep below Earth's surface, life finds a way.

    Traces of cyanobacteria have been found more than 600 meters underground in a rocky outcrop in Spain, suggesting the microbes can survive without sunlight. Instead of photosynthesizing like others of their kind, these light-starved microorganisms may create energy using hydrogen, researchers report October 1 in the Proceedings of the National...

    10/09/2018 - 16:13 Earth, Microbes
  • News

    Tracking how rainfall morphs Earth’s surface could help forecast flooding

    By mapping how downpours cause Earth’s crust to sag and swell, scientists may one day better forecast floods.

    When Hurricane Harvey struck the southern United States in August 2017, it crushed rainfall records and doused the region with roughly 95 cubic kilometers of water, leaving cities like Houston inundated. Using daily elevation data from 219 GPS stations along Harvey’s path,...

    10/02/2018 - 09:00 Climate, Earth
  • Feature

    Christopher Hamilton explores the architecture of other worlds

    Christopher Hamilton, 39Planetary scienceUniversity of Arizona

    Christopher Hamilton wanted to be an architect.

    Yet the planetary scientist at the University of Arizona in Tucson is exploring a very different kind of built environment: the strange structures created by volcanoes on worlds across the solar system, from Earth to Mars to the moon.

    And he’s using an unusually...

    09/26/2018 - 08:32 Earth, Planetary Science
  • News

    A new map reveals the causes of forest loss worldwide

    If a tree falls in the forest, will another replace it?

    Of the roughly 3 million square kilometers of forest lost worldwide from 2001 to 2015, a new analysis suggests that 27 percent of that loss was permanent — the result of land being converted for industrial agriculture to meet global demand for products such as soy, timber, beef and palm oil. The other 73 percent of deforestation...

    09/13/2018 - 16:47 Earth, Earth, Agriculture
  • News

    Sea level rise doesn’t necessarily spell doom for coastal wetlands

    Rising sea levels don’t have to spell doom for the world’s coastal wetlands. A new study suggests salt marshes and other wetlands could accumulate soil quickly enough to avoid becoming fully submerged — if humans are willing to give them a little elbow room.

    The new study builds on previous work that suggests rising seas will increase sediment buildup in some parts of coastal wetlands....

    09/12/2018 - 14:06 Earth, Climate
  • Letters to the Editor

    Readers’ interest piqued by Parker Solar Probe, general relativity and more

    Sunny-side up

    NASA’s Parker Solar Probe is on its way to “touch” the sun. Maria Temming reported on the mission before the August 12 launch in “NASA’s Parker probe is about to get up close and personal with the sun” (SN: 7/21/18, p. 12).

    Astronomy writer Lisa Grossman, who wrote a follow-up story, answered readers’ questions about the probe on Reddit.

    Reddit user Gildolen...

    09/06/2018 - 06:15 Astronomy, Physics, Earth
  • News

    Artificial intelligence could improve predictions for where quake aftershocks will hit

    A new artificial intelligence is turning its big brain to mapping earthquake aftershocks.

    Scientists trained an artificial neural network to study the spatial relationships between more than 130,000 main earthquakes and their aftershocks. In tests, the AI was much better at predicting the locations of aftershocks than traditional methods that many seismologists use, the team reports in...

    08/29/2018 - 13:00 Earth
  • News

    Scientists create a mineral in the lab that captures carbon dioxide

    Scientists are one step closer to a long-sought way to store carbon dioxide in rocks.

    A new technique speeds up the formation of a mineral called magnesite that, in nature, captures and stores large amounts of the greenhouse gas CO2. And the process can be done at room temperature in the lab, researchers reported August 14 at the Goldschmidt geochemistry conference, held in Boston. If...

    08/22/2018 - 12:14 Earth, Climate
  • News

    Beaked whales may frequent a seabed spot marked for mining

    Whales may have made their mark on the seafloor in a part of the Pacific Ocean designated for future deep-sea mining.

    Thousands of grooves found carved into the seabed could be the first evidence that large marine mammals visit this little-explored region, researchers report August 22 in Royal Society Open Science. If deep-diving whales are indeed using the region for foraging or other...

    08/21/2018 - 19:05 Oceans, Earth