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Earth & Space

showing 21-25 of 191 breaks

How the early Earth evolved from a hellish to a habitable world

No terrestrial rocks that formed in the first 500 million years of Earth’s history have been discovered so far, making it difficult to study this period. This, however, has not deterred scientists from trying to understand this period because many events that shaped the present-day... click to read more

Views 1179
Reading time 4 min
published on May 19, 2023
Can dark matter interact with itself?

The nature of dark matter, the invisible matter that holds galaxies together, still evades scientists almost a century after first inferring its existence. Since we cannot observe dark matter directly, like we can detect a star through the light it emits, astrophysicists study how its... click to read more

Views 1783
Reading time 3 min
published on May 10, 2023
Drought may have prompted the Vikings’ departure from Greenland

Norse settlers, led by Erik the Red, developed the Eastern Settlement on southern Greenland in 985 CE. The Norse farmers raised cattle and sheep on cleared pastureland for sustenance. The settlement became quite successful and its estimated population reached to about 2000 people.  Then suddenly, they... click to read more

  • Boyang Zhao | Postdoctoral Research Associate at Brown University
Views 1365
Reading time 4 min
published on Apr 20, 2023
The impact of climate change on marine life in ocean depths

Illustration realized in the framework of a collaboration between the Image/Recit option of the HEAD (Haute École d'Art et de Design) - Genève and the Faculty of Sciences of the University of Geneva.

Historically, the Earth has known periods that were both colder and warmer than... click to read more

  • Lucas Vimpere | Postdoctoral Research Fellow at Earth and environmental sciences section, Faculty of science, University of Geneva, Geneva, Switzerland
  • Sébastien Castelltort | Professor at Earth and environmental sciences section, Faculty of science, University of Geneva, Geneva, Switzerland
Views 2033
Reading time 3 min
published on Feb 16, 2023
Marsquakes redefine what we tought about a quiet Mars

The Red Planet is out there, waiting to be explored. In the mid-70s, NASA’s Vikings I and II landed on Mars, each with a seismometer mounted on their decks. When they transmitted the last recording to Earth in 1980, it became clear that, unfortunately, scientists... click to read more

Views 2899
Reading time 4 min
published on Feb 13, 2023