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EarthSky Voices
Quasar tsunamis rip across galaxies
Astronomers using the Hubble Telescope found that the region around a quasar's black hole pushes out material at a few percent the speed of light. These quasar tsunamis wreak havoc on the galaxies in which the quasars live.
March 27, 2020
Ancient 4-limbed fish reveals origin of human hand
The origin of digits in land vertebrates is hotly debated, but a new study suggests that human hands likely evolved from the fins of Elpistostege, a fish that lived more than 380 million years ago.
March 27, 2020
Social distancing: What it is and why it’s the best tool to fight coronavirus
With no vaccines or treatments, the fight against coronavirus comes down to this behavioral technique. A physician explains how it works.
March 15, 2020
Top tips for feeding wild birds
It's OK to feed wild birds. Here are some tips for doing it the right way from a wildlife ecologist.
March 5, 2020
Antarctica melts under its hottest days on record
On February 6, weather stations recorded the hottest temperature on record for Antarctica, 64.9°F (18.3°C). The warm spell caused widespread melting on nearby glaciers
February 29, 2020
InSight Lander reveals 1st marsquakes on Mars
The results from NASA's Mars InSight lander's first 10 months on the Martian surface have been published in a series of papers.
February 26, 2020
Did early humans in Africa interbreed with a mysterious, extinct species?
New research suggests that early humans in Africa interbred with a ghost population that likely split from the ancestors of humans and Neanderthals between 360,000 and 1.02 million years ago.
February 24, 2020
Why does Arrokoth look like a snowman?
Meet Arrokoth - the most distant object yet visited by earthlings - seen by the New Horizons spacecraft in early 2019. It's very old, one of the first generation of objects in our solar system. Here's why it looks like a snowman.
February 21, 2020
Save the giants, save the planet
Protecting large animals such as elephants and whales, and large plants like the sequoias, has a disproportionate positive impact on the health of the planet and resilience to climate change.
February 12, 2020
New clues in the search for the universe’s oldest galaxies
An astronomer reports on a very old galaxy cluster - labeled XLSSC 122 - whose light has taken 10.4 billion years to travel across the universe to us.
February 11, 2020
