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Earth & Space

showing 26-30 of 145 breaks

A missing ingredient in dark matter theories?

In 1933, Fritz Zwicky, observing the Coma galaxy cluster, noted that single galaxies were moving too fast for the cluster to remain bound, according to the measure of visible mass. Only a far more significant amount of invisible matter could explain the strong gravitational force... click to read more

  • Massimo Meneghetti | Researcher at Osservatorio di Astrofisica e Scienza dello Spazio, Istituto Nazionale di Astrofisica (INAF), Bologna, Italy
Views 659
Reading time 3.5 min
published on Mar 31, 2021
Go with the flow: dams could have a far-reaching impact on fisheries in tropical rivers

We need energy to sustain modern life. In most tropical developing countries, such as Brazil, energy is produced mainly through hydropower. This usually requires building dams, which negatively impacts the environmental and socioeconomic situation in the area. Many such dams are planned in tropical rivers, such... click to read more

  • Renato A. M. Silvano | Professor at PPG Ecology and Department of Ecology, Federal University of Rio Grande do Sul, Porto Alegre, Brazil; Fisheries and Food Institute, UNISANTA, Santos SP, Brazil
  • Anne Runde | MSc. at PPG Ecology and Department of Ecology, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
  • Gustavo Hallwass | Professor at Fisheries and Food Institute, UNISANTA, Santos SP, Brazil; Federal University of Western Pará, Oriximiná, Brazil
Views 837
Reading time 4 min
published on Mar 29, 2021
Diversity may save wines from climate change

Today's climate change is dramatically reshaping environments and threatening society, countless animal and plant species, and sustainable agriculture. Scientists foresee that global warming is going to bring unpleasant outcomes, such as reductions in crops' yield and quality. Today's farmers need a way to adapt to... click to read more

  • Ignacio Morales-Castilla | Distinguished Researcher Beatriz Galindo at Global Change Ecology and Evolution Group, Department of Life Sciences, Universidad de Alcalá, Madrid, Spain
  • Elizabeth M. Wolkovich | Professor at Forest & Conservation Sciences, Faculty of Forestry, University of British Columbia, Vancouver, Canada
Views 891
Reading time 4 min
published on Mar 26, 2021
Will we soon witness the first summer without Arctic sea ice in 130,000 years?

The Polar Regions represent our early warning system for climate change and are thus closely watched by scientists around the world. On the scientists watchlist, Arctic sea ice is kept under careful observation. In fact, Arctic sea ice decline is one of the most glaring... click to read more

Views 719
Reading time 3.5 min
published on Mar 17, 2021
Deep-sea mining may threaten microbial communities

Have you ever wondered how your smartphone was built? Or how our modern lifestyle can threaten our planet? Modern technologies sustaining our life rely on the availability of valuable metals, their important components. In response to today's increasing industrial demand, and as the supply from... click to read more

  • Tobias R. Vonnahme | PhD Student at Max-Planck Institute for Marine Microbiology, Bremen, Germany; The Arctic University of Norway (UiT), Tromsø, Norway
Views 1040
Reading time 3.5 min
published on Mar 15, 2021