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Posts by
EarthSky Voices
Ancient microbial life used arsenic to thrive in a world without oxygen
Today, most life on Earth is supported by oxygen. But ancient microbial mats existed for a billion years before oxygen was present in the atmosphere. So what did life use instead?
October 12, 2020
Is Iceland’s most active volcano about to erupt?
The ice-covered Grímsvötn volcano produced an unusually large and powerful eruption in 2011. Now, says this volcanologist, there are clear signs that Grímsvötn is getting ready to erupt again.
October 9, 2020
Top 4 most promising worlds for alien life in the solar system
Where are the other most promising locations for extraterrestrial life in our solar system?
October 4, 2020
Did this mass extinction event trigger dawn of the dinosaurs?
New research suggests that a series of huge volcanic eruptions, 233 million years ago, led to a mass extinction event that heralded the dawn of the dinosaurs.
October 2, 2020
Coronavirus mutations: what we’ve learned so far
Geneticists around the world are studying 100,000 coronavirus genomes - sampled from Covid-19 patients in over 100 countries - to try to understand how the virus is mutating, What science has learned.
September 29, 2020
The detection of phosphine in Venus’ clouds is a big deal
Here's how we can find out if it's a sign of life.
September 24, 2020
What’s in wildfire smoke and why it’s so bad for your lungs
The health impact of wildfire exposure depends in part on the fire itself and how much smoke a person breathes in, how often and for how long.
September 13, 2020
Scientists probe dark matter in a virtual universe
The new work reveals dark matter haloes as active regions of the sky, teeming with not only galaxies, but also radiation-emitting collisions that could make it possible to find dark matter haloes in the real sky.
September 13, 2020
Astronomers issue report on the effect of ‘satellite constellations’ on astronomy
A new report concludes that large constellations of bright satellites in low-Earth orbit will fundamentally change ground-based astronomy and impact the appearance of the night sky for stargazers worldwide.
August 27, 2020
Pesticides and industrial pollutants found in snow atop Arctic glaciers
The long journey of these compounds - likely originating in the U.S. and Eurasia - shows the far-reaching impacts of industrial pollution.
August 22, 2020
