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Posts by
EarthSky Voices
Were snakes the source of China’s coronavirus outbreak?
A report suggests that snakes – the Chinese krait and the Chinese cobra – might have been the original source of the coronavirus that's triggered an outbreak of deadly infectious respiratory illnesses in China this year.
January 26, 2020
Meet the narwhal, ‘unicorn of the sea’
This Arctic whale has the only spiral tooth found in nature. But there’s more to the narwhal than its unique tusk.
January 22, 2020
Human evolution: 20 years of discoveries
The pace of archaeological discoveries has picked up in recent decades, helping to refine the human story.
January 11, 2020
Get ready for the ’20s!
"Anybody besides me notice that the past two decades have been nameless?"
December 29, 2019
Why are whales big, but not bigger?
How did whales that feed on tiny prey evolve into the largest creatures on Earth? And why don't they get even bigger?
December 18, 2019
A second black hole at our galaxy’s center?
There's a supermassive black hole - 4 million times our sun's mass - in the center of our Milky Way galaxy. Astronomers who've measured star movements near this central black hole are now saying there might be a 2nd companion black hole near it.
December 15, 2019
Amazon fires quickening glacier melting in Andes
The burning rainforest releases black carbon into the atmosphere, which, according to a growing number of scientific studies, directly contributes to the melting of glaciers.
December 12, 2019
Why White Island erupted … and why there was no warning
White Island is one of several volcanoes in New Zealand that can produce sudden explosive eruptions at any time. An Earth scientist explains why.
December 10, 2019
Did this black hole swallow a star?
We know of a couple of dozen so-called "stellar-mass" black holes in our Milky Way galaxy. They tend to be between about 5 and 20 times as heavy as our sun. This new black hole - in a distant spiral arm of the galaxy - is 70 times as heavy as the sun.
December 3, 2019
Tons of acorns in your yard? It must be a mast year
Masting is what biologists call the pattern of trees for miles around synchronizing to all produce lots of seeds – or very few. Why and how do they get on schedule?
November 21, 2019
