Enjoying EarthSky? Subscribe.

206,897 subscribers and counting ...

Human World

Site of the massive methane leak. Photo: Getty Images
Science Wire | Mar 01, 2016

Biggest ever US methane leak from California blowout

The Aliso Canyon leak, finally plugged on February 11, vented 100,000 tons of methane into the atmosphere – a climate impact equivalent to the annual emissions of half a million cars, say scientists.

Scanning electron microscope image of a cockroach egg case silicone cast. Image credit: Prof. Hiroki Obata
Science Wire | Mar 01, 2016

Cockroach egg impressions from 4,300 years ago

More information about early human settlements – and in this case the insects who lived alongside them – is being found in ancient bits of broken pottery.

Science Wire | Feb 29, 2016

Simplified calendar and no time zones?

In the Hanke-Henry Permanent Calendar, there are no leap years and Christmas always falls on a Monday. Plus, it’s the same time everywhere on Earth.

Science Wire | Feb 29, 2016

Why do we need leap years?

We need leap years to help synchronize our calendar with Earth’s orbit around the sun and the actual passing of the seasons.

Science Wire | Feb 28, 2016

Leap babies

If you’re born on a leap day, do you have birthdays only once every four years?

Why the night sky can tell us a fair bit about time. Photo: eArches National Park/Flickr
Science Wire | Feb 26, 2016

What is time?

… And why does it move forward?

Astronaut Terry Virts conducts a spacewalk during an orbital sunrise on Feb. 21, 2015. Image credit: NASA
Science Wire | Feb 19, 2016

Record number of NASA astronaut applications

More than 18,300 people applied to join NASA’s 2017 astronaut class – almost three times the number received in 2012.

Breaking through the crystal spheres
Blogs | This Date in Science | Feb 19, 2016

This date in science: Happy birthday, Nicolaus Copernicus

Copernicus broke open the medieval idea of an enclosed, Earth-centered universe. He set the stage for all of modern astronomy.

Oyster reef at about mid-tide off fishing pier at Hunting Island State Park, South Carolina.  Image via Jstuby at Wikimedia Commons.
Science Wire | Feb 18, 2016

Plastics in ocean harm oysters

Ground-breaking data on a negative effect on oysters from microplastics, which enter our oceans via cosmetics, clothing, and industrial processes.

Josh Brendan holds up a meteorite - a chunk of rock from space - associated with the January 24 2016 daylight meteor over the U.S. Southeast.  Photo via MikeAstroPhotos.com.  Used with permission.
Science Wire | Feb 16, 2016

Space rocks from Florida fireball found!

A rare find by meteorite hunters in Florida, from the daylight meteor that streaked across skies in the U.S. southeast in late January.