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Earth & Space

showing 16-20 of 193 breaks

Nitrogen is becoming less available in ecosystems around the world

You probably don’t spend much time thinking about nitrogen. If you do, maybe you think of it as a pollutant. Fertilizer running off farm fields, livestock manure giving off ammonia, and burning fossil fuels all add nitrogen to the environment. This nitrogen contributes to the... click to read more

  • Rachel Mason | Research Scientist at Arizona State University
Views 1480
Reading time 3 min
published on Jul 28, 2023
Agriculture and climate change driving worldwide insect declines

Insects are critical for the functioning of life on earth. They support the provisioning of a wide variety of ecosystem services including pollination, pest control and decomposition. Therefore, the growing number of peer-reviewed studies publishing reports of steep insect declines should be of pressing concern.... click to read more

Views 1462
Reading time 3 min
published on Aug 2, 2023
Introducing the Micronova

The Transiting Exoplanet Survey Satellite (TESS) operating since 2018, monitors the brightness variations of hundreds of thousands of objects in the sky. Amongst the targets we monitor are a few hundred accreting white dwarfs. Three of these have revealed rapid and energetic bursts of light... click to read more

Views 4742
Reading time 3 min
published on Jul 24, 2023
Poverty and unpreparedness make monsters out of ordinary hazards

 Historical and contemporary data show that ordinary hazards turn into disasters in poor and less prepared nations. It is true of earthquakes, floods, volcanic eruptions etc. Examples include the more than 80,000 deaths resulting from the magnitude 7.6 earthquake in Muzaffarabad, Pakistan in 2005, and... click to read more

Views 1726
Reading time 4 min
published on Jul 17, 2023
The missing galaxies in the early universe

Most of the stars in the universe are born, live, and die within a galaxy – a system containing millions (or billions) of stars. Galaxies are extremely numerous in the universe. No matter where we look in the night sky, or in which direction we... click to read more

Views 1589
Reading time 4 min
published on May 29, 2023