Enjoying EarthSky? Subscribe.

213,773 subscribers and counting ...

Artist's concept of a greenhouse on the surface of Mars via SAIC/ NASA.

Can we grow food on Mars?

Apparently we can, and you can view details in this video from a talk given at Mars One’s recent private event in Amsterdam.

A human-dependent mosquito, the range of the disease-carrying Aedes aegypti is projected to grow in the U.S. and affect more people globally. Image via sanofi-pasteur/Flickr

Warming temps to raise Zika virus risk

Global warming will cause more people to be exposed to the mosquito that carries Zika virus, says a new study. Why this mosquito is such a good virus-spreader.

Summer solstice sunrise.

Summer solstice at Stonehenge

Why do people gather at Stonehenge in England on the solstice? Info and photos here.

Photo via EarthSky Facebook friend Kenneth G. Smith

How to see anticrepuscular rays

Next time you see crepuscular rays or sunrays extending from the horizon … turn around. You might catch a glimpse of elusive anticrepuscular rays.

moon-6-19-2016-Blue-Ridge-FA-John-Boydston-sq

See it! Solstice full moon photos

On June 20, 2016, the moon turns full at 11:02 UTC. The solstice arrives some 11.5 hours later, at 22:34 UTC. Solstice moon photos here from the EarthSky community.

Red Phoenix, aka Vermilion Bird. Image via fantasticanimals.wordpress.com.

A Chinese perspective on summer

In Chinese thought, summer has been associated with the color red, the sound of laughing, the heart organ, the fire element and a red phoenix bird.

Image Credit: hspauldi

Top tips for poison ivy, oak and sumac

Summer is a great time to frolic in the woods. Just don’t touch anything.

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.

DSAC is prepping for a yearlong experiment to characterize and test its suitability for use in future deep space exploration.  Image via NASA Jet Propulsion Laboratory

Measuring time in deep space

A scientist developing the Deep Space Atomic clock on why it’s key for future space missions.

ISS, as captured by Dave Walker

How to spot ISS in your sky

Check out the International Space Station in your night sky the next time it flies over. NASA’s Spot the Station program is easy, and it works!