Enjoying EarthSky? Subscribe.

211,966 subscribers and counting ...

Eleanor Imster
Image via SKYGLOW

Wow! Watch sandstorm reshape dunes

Journey to White Sands, New Mexico and watch sandstorms reshape and move the dunes, under both blue and starry skies, in this gorgeous time-lapse.

This artist's rendering shows NASA's Juno spacecraft making one of its close passes over Jupiter. Image via  NASA/JPL-Caltech

Juno to enter Jupiter orbit July 4

Juno will fly closer to Jupiter than any spacecraft yet, into the harshest radiation environment in the solar system.

Image via

Fastest CO2 increase on record

The recent El Niño has driven a rise in atmospheric CO2. Scientists expect it to surpass 400 parts per million for the year and stay there at least a human lifetime.

Screen Shot 2016-06-14 at 1.18.42 PM

Why your GPS twinkles

Radio signals twinkle much as stars do. This can have an effect on your GPS.

dog-grass-ollie-580

Humans domesticated dogs twice, says study

New research suggests that dogs were domesticated not once, but twice, in different parts of the world.

Image via NASA

SDO peers into huge coronal hole

A NASA animation from May 17-19, 2016 shows a coronal hole in our sun’s hot outer atmosphere, or corona. Should we be scared?

Artist's concept of primordial black holes, via NASA.

Is dark matter made of black holes?

What if if dark matter consisted of a population of black holes similar to those detected by LIGO last year? A new study analyzes this possibility.

This artist’s impression shows a possible seed for the formation of a supermassive black hole. Two of these possible seeds were discovered by an Italian team, using three space telescopes: the NASA Chandra X-ray Observatory, the NASA/ESA Hubble Space Telescope, and the NASA Spitzer Space Telescope. Image via NASA/CXC/M. Weiss

Clues to birth of supermassive black holes

Astrophysicists have taken a major step forward in understanding how these monster black holes are born.

Image credit: NASA/JPL/Space Science Institute

Saturn’s south polar vortex

A monstrous vortex sits at Saturn’s south pole. It’s not just beautiful. It also lets astronomers peer deep into Saturn’s dense atmosphere.

Image via NASA/JHUAPL/SwRI

Best close-up of Pluto’s surface

The most detailed view of Pluto’s terrain you’ll see for a very long time, taken by the New Horizons spacecraft as it flew past Pluto on July 14, 2015.