Enjoying EarthSky? Subscribe.

172,206 subscribers and counting ...


Posts by EarthSky

This spider from the genus Selenops is about two inches across and hunts in the tree canopy at night for its prey.Photo credit: Stephen Yanoviak / University of Kentucky.
Science Wire | Aug 28, 2015

Skydiving spider discovered in South America

Biologists have discovered a nocturnal hunting spider that can steer while falling. Watch it glide!

Screen Shot 2015-08-28 at 8.20.24 AM
Science Wire | Aug 28, 2015

Got a minute? Climate change/sea level rise

How is climate change connected to sea level rise? One-minute video explains.

Photo credit: NOAA
Science Wire | Aug 26, 2015

Want to see Earth’s super predator? Look in the mirror.

Our efficient killing technologies have given rise to the human super predator. Our impacts are as extreme as our behavior, says study.

11aug25_430
Tonight | Aug 26, 2015

Orion the Hunter and Sirius the Dog Star

You’ll always know it’s the sky’s brightest star, Sirius, if the very noticeable constellation Orion the Hunter is nearby.

On August 21, 2015 the Aqua satellite captured this image of the smoke from the fires on the west coast of the United States wafting eastward on the jet stream.  In this image the smoke is obscuring parts of Montana, North and South Dakota, Minnesota, and Wisconsin.  Residents of these states are on notice that sunsets will be much redder and more orange as long as the smoke lingers over their area. The reason? The size of the smoke particles is just right for filtering out other colors meaning that red, pink and orange colors can be seen more vividly in the sky. Image credit: Jeff Schmaltz, MODIS Rapid Response Team.
Science Wire | Aug 25, 2015

No end in sight for western US wildfires

Satellite images capture the ongoing onslaught of wildfires in the U.S. West.

Land and ocean temperature percentiles July 2015. View larger. |  Image credit: NOAA
Science Wire | Aug 21, 2015

July 2015 was warmest month ever recorded

Last month’s average global temperature was the all-time highest monthly temperature since record-keeping began in 1880.

Artist’s impression of a rocky and water-rich asteroid being torn apart by the strong gravity of the white dwarf star. Similar objects in the solar system likely delivered the bulk of water on Earth and represent the building blocks of the terrestrial planets. Image credit: Mark A. Garlick / University of Warwick
Science Wire | Aug 20, 2015

No asteroid threatening Earth in September

Despite rumors, no asteroid threatens Earth. All known Potentially Hazardous Asteroids have less than a 0.01% chance of hitting Earth in the next 100 years, says NASA.

August 16, 2015. View larger. |  Image credit: NASA
Science Wire | Aug 18, 2015

View from space: Fires in US Pacific Northwest

Wildfire outbreaks have charred nearly 7 million acres this summer. Satellite view of several fires burning in Idaho, Oregon, and Washington.

An artist’s conception of the Jupiter-like exoplanet 51 Eridani b, seen in the near-infrared light that shows the hot layers deep in its atmosphere glowing through clouds. Image credit: Danielle Futselaar and Franck Marchis/SETI Institute
Science Wire | Aug 17, 2015

Astronomers discover ‘young Jupiter’ exoplanet

A team of astronomers has discovered a planet outside our solar system, 100 light-years away, that resembles a young Jupiter.

09aug30_430
Tonight | Aug 16, 2015

Great Square of Pegasus points to Andromeda galaxy

You can find the Andromeda galaxy – also known as M31 – in several ways. One is by star-hopping from the Great Square of Pegasus.