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Posts by
EarthSky Voices
LIGO’s 3rd gravitational wave detection
Albert Einstein hypothesized these ripples in the fabric of space-time a century ago. Now scientists have detected them for the 3rd time, from distant black hole collisions.
June 2, 2017
Top 5 questions about tornadoes
More tornadoes occur in the U.S. than any other country, mainly in the Great Plains, Midwest and southern states. Two meteorology professors answer questions.
May 31, 2017
Mystery light shines near Cygnus A core
When astronomers aimed the Very Large Array at the well-studied galaxy Cygnus A, they were surprised to find a bright new object near the galaxy’s core. Supernova explosion, or a second supermassive black hole?
May 24, 2017
Denmark’s never-ending May twilights
Happening now in Denmark: "bright nights," when the sun is never far below the horizon. Photographer and videographer Adrien Mauduit tells the story and provides stunning imagery.
May 23, 2017
Astronomers find waves in Io’s lava lake
New data on the massive molten lake on Jupiter's moon Io - most volcanically active world in our solar system - suggest 2 lava waves per day, slowly sweeping west to east.
May 10, 2017
Imaging modern brains to study Stone Age thinking
We can't observe brain activity of extinct human species. But we can observe modern brains doing things that our distant ancestors did for clues to how their brains worked.
May 10, 2017
Asteroid 2014 JO25: What we learned
This article from NASA's Center for Near-Earth Object Studies provides fresh details on the closest approach by a large asteroid since 2004 ... and shows you how science works.
May 9, 2017
Why cats can’t resist (even a phony) box
Twitter has been blowing up with posts on cats' attraction to taped squares on the ground. An animal behavior expert explains what draws Fluffy to the #CatSquare.
April 25, 2017
Molecular clocks track human evolution
How do scientists figure out when evolutionary events happened? It turns out our DNA is a kind of molecular clock, keeping time via genetic changes.
April 9, 2017
Super halos around very young galaxies
Astronomers directly observed a pair of Milky-Way-like galaxies, seen when the universe was 8% of its current age. They were excited to find the young galaxies surrounded by huge halos.
March 26, 2017
