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Cassini Zeroes in on Saturn’s Icy Moon Rhea

This mosaic image from the NASA/ESA/ASI Cassini-Huygens spacecraft is centered at 9 degrees north latitude, 254 degrees west longitude. The image was acquired at a distance of about 57,800 km from Rhea. This image represents one of the highest resolution color views of the icy moon released to date, and consists of multiple images from Cassini’s narrow-angle camera (NAC) with data from the wide-angle camera used to fill in areas where NAC data was not available. Image credit: NASA / JPL-Caltech / Space Science Institute.
Mar 31, 2015 by News Staff

The NASA/ESA/ASI Cassini-Huygens spacecraft has captured the best images so far of Rhea, the fourteenth of Saturn’s known moons. This mosaic image from the NASA/ESA/ASI Cassini-Huygens spacecraft is centered at 9 degrees north latitude, 254 degrees west longitude. The image was acquired at a distance of about 57,800 km from Rhea. This image represents one of the highest resolution color views of the icy moon released to date, and consists of multiple...

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Pasig River, Manila, Philippines. Image credit: Bar Fabella / CC BY 2.0

New Low-Cost Method Can Detect Sewage Pollution in Streams, Rivers

Mar 31, 2015 by News Staff

A team of scientists at the University of Sheffield, UK, has developed and tested a promising novel method that uses inexpensive samplers (cotton tampons)...

Color differences on Mercury are subtle, but they reveal important information about the nature of the planet’s surface material. Image credit: NASA / JPL.

Cometary Carbon Painted Planet Mercury Black, Says Study

Mar 31, 2015 by News Staff

Carbon from cometary material that bombards Mercury, the first planet from the Sun, may be the reason the planet’s surface is heavily dark, says new...

The Lesser bird-of-paradise (Paradisaea minor) was one of 977 species examined by Prof Peter Dunn and his colleagues at the University of Wisconsin–Milwaukee in a worldwide study of the evolution of bird colors. Image credit: Reza Pratama / CC BY-SA 2.0.

Natural Selection Drives Evolution of Bird Colors, Say Scientists

Mar 30, 2015 by News Staff

In a worldwide study of the evolution of bird plumage coloration, a team of scientists led by Prof Peter Dunn of the University of Wisconsin-Milwaukee...

This is a Hubble Space Telescope photo of NGC 3021. Image credit: NASA / ESA / A. Riess, STScI.

Gorgeous New Image from Hubble Space Telescope Shows Spiral Galaxy NGC 3021

Mar 30, 2015 by News Staff

Astronomers using the Advanced Camera for Surveys (ACS) on the NASA/ESA Hubble Space Telescope have captured a stunning new image of the spiral galaxy...

This image shows an artistic representation of an active supermassive black hole at the centre of a galaxy. Image credit: ESA / ATG medialab.

Astronomers See Supermassive Black Hole in Action

Mar 30, 2015 by News Staff

A team of astronomers, led by Dr Francesco Tombesi of NASA’s Goddard Space Flight Center and the University of Maryland, has observed two related phenomena...

This is an artist's reconstruction of female Homo from Dmanisi, Georgia. Image credit: Elisabeth Daynes, via tabula.ge.

Early Members of Genus Homo Varied Widely in Body Size

Mar 30, 2015 by News Staff

A new study published online March 26 in the Journal of Human Evolution suggests that the genus Homo has come in different sizes since its origins over...

Artist’s impression of the terrestrial exoplanet Gliese 667 Cb with the Gliese 667 A/B binary in the background. Image credit: L. Calçada / ESO.

Rocky Exoplanets around Binary Stars May Be Widespread, Astrophysicists Say

Mar 30, 2015 by News Staff

According to astrophysicists Dr Scott Kenyon of the Smithsonian Astrophysical Observatory and Dr Ben Bromley of the University of Utah, terrestrial, Earth-like...

This composite image shows the motion of the dusty cloud G2 as it closes in, and then passes, Sagittarius A* - the Milky Way’s supermassive black hole. Image credit: A. Eckart / ESO.

G2: Astronomers Observe Mysterious Dusty Cloud at Milky Way’s Center

Mar 29, 2015 by News Staff

A group of astronomers headed by Dr Andreas Eckart from the University of Cologne, Germany, has made the best observations so far of a dusty red object...

Giant panda cub Xiao Liwu and his mother Bai Yun at the San Diego Zoo.

New Study Sheds More Light on Secret Life of Giant Pandas

Mar 28, 2015 by News Staff

A new study, led by Dr Vanessa Hull of the Michigan State University’s Center for Systems Integration and Sustainability, has revealed more details on...

Yawunik kootenayi. Image credit: University of Toronto.

Yawunik kootenayi: Paleontologists Discover Cambrian Lobster-Like Animal

Mar 28, 2015 by News Staff

A multinational group of paleontologists has described a prehistoric lobster-like animal from the Marble Canyon site, part of the renowned Canadian Burgess...

This image was obtained on 10 September 2007 by NASA's Cassini spacecraft, at a distance of approximately 3.3 million km from Saturn. Rhea - Saturn's second largest moon - is visible against the bluish backdrop of the planet's northern hemisphere. Mimas - Saturn's seventh largest moon - appears as a speck against the ring shadows on planet's western limb. Image credit: NASA / JPL / Space Science Institute.

New Method Precisely Measures Rotation Period of Saturn

Mar 28, 2015 by News Staff

A day on Saturn lasts 10 hours 32 minutes 45 seconds (+/- 46 seconds), says a group of astronomers led by Dr Ravit Helled of Tel Aviv University, Israel. This...

Square ice between two graphene sheets as seen in a transmission electron microscope (TEM); high-contrast dark spots are oxygen atoms that indicate positions of water molecules; hydrogen atoms yield too little contrast to be resolved even by the TEM. The top right inset shows a magnified image of a small area in the centre of the ice crystal. Image credit: University of Ulm.

Physicists Create New Form of Ice: Square Ice

Mar 27, 2015 by News Staff

When water is confined at high pressure between sheets of graphene its molecules adopt a square configuration, says a team of physicists from the University...

This Hubble image shows the galaxy cluster MACS J0416.1-2403; shown in blue is a map of the dark matter found within the cluster. Image credit: NASA / ESA / D. Harvey / R. Massey / HST Frontier Fields.

Colliding Galaxy Clusters Offer Clues to Dark Matter

Mar 26, 2015 by News Staff

An international team of astronomers led by Dr David Harvey of the Observatory of Sauverny in Switzerland and the University of Edinburgh, UK, has studied...

This image shows the Sculptor dwarf galaxy. Image credit: ESO / Digitized Sky Survey 2.

Astronomers Discover Two Extremely Old Stars in Sculptor Dwarf Galaxy

Mar 25, 2015 by News Staff

A group of astronomers led by Dr Joshua Simon from the Observatories of the Carnegie Institution of Washington has discovered two stars in the Sculptor...

This image shows the famous Trifid Nebula to the right of center; it appears as faint and ghostly at these infrared wavelengths when compared to the familiar view at visible wavelengths; this transparency has brought its own benefits - many previously hidden background objects can now be seen clearly; among these are two newly discovered Cepheid variable stars, the first ever spotted on the far side of our Milky Way Galaxy near its central plane. Image credit: ESO / VVV consortium / D. Minniti.

Stars May Generate Sound, Physicists Say

Mar 24, 2015 by News Staff

An international team of scientists headed by Dr G. Ravindra Kumar of the Tata Institute of Fundamental Research in Mumbai, India, has provided experimental...

Skin texture variation in one individual Pristimantis mutabilis; note how skin texture shifts from highly tubercular to almost smooth; also note the relative size of the tubercles on the eyelid, lower lip, dorsum and limbs. Image credit: Zoological Journal of the Linnean Society.

Pristimantis mutabilis: Scientists Discover Shape-Shifting Frog in Ecuador

Mar 24, 2015 by News Staff

Case Western Reserve University PhD student Katherine Krynak, naturalist Tim Krynak of Cleveland Metroparks’ Natural Resources Division, and their colleagues...

Reconstruction of Metoposaurus algarvensis. Image credit: Marc Boulay / Cossima Productions.

Metoposaurus algarvensis: Fossils of Giant Salamander-Like Amphibian Found in Portugal

Mar 24, 2015 by News Staff

A team of scientists led by Dr Steve Brusatte of the University of Edinburgh, UK, has discovered a new species of metoposaurus that lived in lakes and...

A simplified image of a slab from one of Earth’s tectonic plates sinking through the upper mantle above, through the boundary between the upper and lower mantle 410 miles deep, then stalling and pooling at a depth of 930 miles, where the new study suggests the existence of an extremely viscous layer in Earth. Image credit: Lowell Miyagi / University of Utah.

Geologists Discover New Layer in Earth’s Mantle

Mar 24, 2015 by News Staff

New research led by Dr Hauke Marquardt of the University of Bayreuth, Germany, suggests the existence of a previously unknown superviscous layer inside...

Terrestrial exoplanet and its moons. Image credit: Luciano Mendez / CC BY-SA 3.0.

Inner Solar System May Have Harbored Super-Earths 4.5 Billion Years Ago

Mar 24, 2015 by News Staff

A new study, published March 23 in the Proceedings of the National Academy of Sciences, suggests that Jupiter’s inward-outward migration early in the...

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