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Did human limbs evolve from shark gills?
The Sonic Hedgehog gene drives embryonic development of mammal limbs and shark gills. Could our limbs have evolved from gills?
April 30, 2016
Chernobyl all-time worst nuclear accident
The meltdown at the Chernobyl Nuclear Power Plant on April 26, 1986 exposed 572 million people to radiation. It was far worse than the 2011 Fukushima accident.
April 26, 2016
Laser cloaking to hide Earth from aliens?
If we wanted to hide Earth from alien civilizations, could we do it? Apparently, we could, according to new work by two scientists at Columbia University.
April 8, 2016
Eclipse stories from Indonesia
The solar eclipse of March 9, 2016 brought together students from around the world - and EarthSky helped to make it happen.
April 4, 2016
This is the earliest Easter until 2035
There are 35 dates on which Easter can take place. There won't be another one as early as today's Easter Sunday until 2035.
March 27, 2016
Searching for shipwrecks from space
A new study uses satellite images to detect ships' watery graves.
March 23, 2016
Zika virus may affect 50 U.S. cities
Weather, travel, and poverty may facilitate summertime outbreaks of Zika virus in many U.S. cities in summer, 2016, a new study shows.
March 21, 2016
Snapshot of early human ancestors’ lives
Scientists used fossil remains and primitive tools to build a vivid description of what life was like for our early human ancestors, 1.8 million years ago.
March 20, 2016
Incredible solar eclipse footage from flight
Spectacular video shows last week's total solar eclipse from a redirected Alaska Airlines flight. Wish we all could have been there!
March 15, 2016
NASA astronaut returns from year in space
NASA's Scott Kelly and cosmonauts Sergey Volkov and Mikhail Kornienko landed safely in Kazakhstan on March 2. The landing wraps up Kelly's one-year mission aboard the ISS.
March 2, 2016
