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Earth & Space

showing 46-50 of 195 breaks

Our Galaxy is shooting out bullets of cold gas

The central regions of disk galaxies are large-scale powerhouses. Galactic nuclei usually host super-massive black holes that release huge amounts of energy when matter spirals around them and eventually falls onto them. Many galaxies also show strong star formation activity in their inner regions, with... click to read more

  • Enrico Di Teodoro | Postdoctoral Research Fellow at Johns Hopkins University, Baltimore, Maryland; Princeton University, Princeton, New Jersey, USA
  • Lucia Armillotta | Postdoctoral Research Fellow at Johns Hopkins University, Baltimore, Maryland; Princeton University, Princeton, New Jersey, USA
Views 3159
Reading time 3.5 min
published on Nov 23, 2021
Rethinking priorities in conservation planning to tackle the biodiversity crisis

Freshwater ecosystems cover a tiny portion of the Earth surface yet host an outstanding biodiversity. About one tenth of all known species inhabit rivers, streams, lakes, ponds, or floodplains. They are also essential to human well-being providing us with food, clean water, and leisure. Freshwater... click to read more

  • Cecília Gontijo Leal | Postdoctoral Research Fellow at Luiz de Queiroz College of Agriculture, University of São Paulo, São Paulo, Brazil
Views 3115
Reading time 3 min
published on Nov 19, 2021
Finding the novelty in nature

In the 1970s, Nintendo, a company that owned taxis and hotels and made playing cards and instant rice, began to make video games. This changed the company forever. Communities of species that live together in nature are somewhat like a business. Each species is a... click to read more

  • Timothy L. Staples | Postdoctoral Research Fellow at Australian Research Council Centre of Excellence for Coral Reef Studies at the School of Biological Sciences, The University of Queensland, Queensland, Australia
  • John M. Pandolfi | Professor at Australian Research Council Centre of Excellence for Coral Reef Studies at the School of Biological Sciences, The University of Queensland, Queesland, Australia
Views 3759
Reading time 3.5 min
published on Oct 18, 2021
Bee aware! Signs of a global decline in wild bee diversity

Everyone likes bees; they are fuzzy, love flowers and do many great things – but they might not be around for much longer. Although most of us are familiar with the European honeybee, this is but one of over 20 thousand species of wild bees, and... click to read more

  • Eduardo E. Zattara | Adjunct Researcher at INIBIOMA, Universidad Nacional del Comahue, CONICET, Bariloche, Argentina
Views 4363
Reading time 3.5 min
published on Oct 14, 2021
Turning on the lights: how long did it take for the Sun to form?

Prehistoric cave dwellers adorned their homes with drawings of the Sun, stars, and planetary bodies of the Solar System, so it is safe to say that objects beyond Earth have been fascinating humans since long before our species could even express their awe in written... click to read more

  • Gregory A. Brennecka | Staff Scientist at Lawrence Livermore National Laboratory, Livermore, California, USA
Views 7360
Reading time 3.5 min
published on Sep 30, 2021