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EarthSky Voices
Scientists discover ancient lake bed deep beneath Greenland ice
The ancient lake bed, sealed more than a mile under Greenland ice, may be hundreds of thousands or millions of years old, and contain unique fossil and chemical traces of past climates and life.
November 14, 2020
Why Arctic sea ice has stalled, and what it means for the rest of the world
In the next few decades, scientists expect we'll see an ice-free Arctic Ocean throughout the summer. That prospect got much closer in 2020, due in part to the exceptional summer heatwave that roiled the Russian Arctic.
November 8, 2020
The Arctic hasn’t been this warm for 3 million years
The last time CO2 concentrations reached today’s level was 3 million years ago, during the Pliocene Epoch. Hear from geoscientists who see evolving conditions in the Arctic as an indicator of how climate change could transform the planet.
October 25, 2020
Covid-19 will probably become endemic. Here’s what that means
Rather than completely disappear - even when vaccines become available- it's likely that the coronavirus SARS-CoV-2 will be added to the family of infectious diseases known as “endemic” in the human population.
October 24, 2020
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
