Enjoying EarthSky? Subscribe.

200,967 subscribers and counting ...


Posts by Eleanor Imster

The sediment-rich meltwater river originating from Leverett Glacier in southwest Greenland, pictured in June 2012. Photo credit: Jon Hawkings
Science Wire | Feb 08, 2016

Ice sheet releasing Mississippi River’s worth of phosphorus

Every year, Greenland’s ice sheet releases as much of this key marine nutrient as the mighty Mississippi releases into the Gulf of Mexico, says a new study.

California's drought in December, 2013. Photo by John Weiss.  See this photo on Flickr.
Science Wire | Feb 07, 2016

U.S. Southwest is drying

Researchers identified 12 weather patterns across the region. Over the past 30 years, the 3 patterns bringing rain to the U.S. Southwest became less frequent.

5-planets-2-1-2016-John-Ashley-sq
Today's Image | Feb 05, 2016

See it! All 5 bright planets at once

Best photos from the EarthSky community of the 5 bright planets now visible at once in the sky before dawn. Thanks to all who posted!

View larger. | The Pictor A galaxy has a supermassive black hole at its center, and material falling onto the black hole is driving an enormous beam, or jet, of particles at nearly the speed of light into intergalactic space. This composite image contains X-ray data obtained by Chandra at various times over 15 years (blue) and radio data from the Australia Telescope Compact Array (red). By studying the details of the structure seen in both X-rays and radio waves, scientists seek to gain a deeper understanding of these huge collimated blasts. X-ray (Blue), Radio (Red)Image credit: NASA/CXC/Univ of Hertfordshire/M.Hardcastle et al
Science Wire | Feb 03, 2016

New image of enormous black hole blast

It shows a giant jet of particles extending 300,000 light-years, blasting from a black hole at the center of a distant galaxy.

Russian cosmonaut Alexander Skvortsov, Expedition 40 flight engineer, attired in a Russian Orlan spacesuit, is pictured in this close-up view during a session of extravehicular activity (EVA) in support of science and maintenance on the International Space Station. During the five-hour, 11-minute spacewalk, Skvortsov and cosmonaut Oleg Artemyev (out of frame) deployed a small science satellite, retrieved and installed experiment packages and inspected components on the exterior of the orbital laboratory. Image credit: NASA
Science Wire | Feb 03, 2016

Watch cosmonauts’ spacewalk today

NASA TV will broadcast live coverage of a 5.5-hour spacewalk by two Russian cosmonauts aboard ISS beginning at 7:30 a.m. ET (1230 UTC) Wednesday.

saturn-rings-cassini-sq
Science Wire | Feb 03, 2016

Saturn ring density is an illusion

The most opaque parts of Saturn’s rings – the parts that look most dense – don’t always contain more material. Another great Saturn mystery!

square-smith-cloud
Science Wire | Feb 02, 2016

Monster gas cloud boomerangs back to us

Astronomers say the Smith Cloud will plow into the Milky Way in about 30 million years and ignite a spectacular burst of star formation.

Screen Shot 2016-01-31 at 2.23.30 PM
Science Wire | Feb 01, 2016

Take a colorful flight over dwarf planet Ceres

A new animation shows a simulated flight over the surface of dwarf planet Ceres, based on images from NASA’s Dawn spacecraft.

square-Antarctic-fungi-astronaut-ISS
Science Wire | Feb 01, 2016

Fungi survive Martian conditions on ISS

Antarctic fungi survive Martian conditions after being strapped on the outside of the International Space Station for 18 months.

Image credit: NASA
Science Wire | Jan 21, 2016

Cascade of magnetic arches on sun

Take 15 seconds to watch glowing magnetic arches cascade across the solar surface, captured by NASA’s Solar Dynamics Observatory.