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Novel Method Reveals 3D Structure of Chromosomes

This image shows a structural model of a chromosome from a white blood cell. Image credit: University of Cambridge.
Oct 1, 2013 by News Staff

A team of scientists led by Dr Peter Fraser from the Babraham Institute in Cambridge, UK, has developed a new method to determine the 3D structures of chromosomes in single cells. This image shows a structural model of a chromosome from a white blood cell. Image credit: University of Cambridge. The commonly illustrated X-shape chromosome structure is only present when the cell divides. Dr Fraser and his colleagues have been able to model the structure...

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Deep Lake, Antarctica. Image credit: © Rob 'Angry' Cullen.

Gene-Shuffling Microbes Found in Deep Lake, Antarctica

Oct 1, 2013 by Enrico de Lazaro

An international team of scientists reporting in the Proceedings of the National Academy of Sciences has for the first time been able to get a complete...

Acute brain slice: thin brain slices allow the selective study of a neural circuit in isolation not possible in intact organism; here one can also selectively manipulate the conditions and observe their specific effect. Image credit: Bhuminder Singh.

Future of Neurophysiology: to Slice or not to Slice?

Oct 1, 2013 by Bhuminder Singh

We would like to think that scientific efforts are free of trends and human whims and proceed in a straight line for the good of humanity; but this is...

This artist's rendering shows the gas giant Kepler-7b, left, and Jupiter, right. The cloud map shows that clouds cover the western side of the gaseous planet, leaving the east cloud-free. Dr Demory and his colleagues speculate the clouds are made up of minerals containing silicates. Image credit: NASA / JPL-Caltech / MIT.

Kepler-7b: Astronomers Create Cloud Map of Jupiter-Like Exoplanet

Oct 1, 2013 by News Staff

Astronomers using data from two space telescopes have created the first cloud map of a hot gas giant called Kepler-7b. This artist’s rendering shows...

Doryphora paykulli female with eggs and first instar larvae under a leaf of Prestonia seemanii. Image credit: Suzanne Lanckowsky.

Some Beetles Have Maternal Instincts, New Study Says

Sep 30, 2013 by News Staff

Entomologists from Panama, Europe, Canada and Brazil have teamed up to describe in detail the different degrees of maternal instincts present within eight...

Completely enrolled specimen of the olenellid Mummaspis muralensis from the early Cambrian Mural Formation, Jasper National Park, Alberta, Canada. Image credit: Javier Ortega-Hernández.

Paleontologists Find Oldest Evidence of Enrollment in Trilobites

Sep 30, 2013 by News Staff

Olenellids – an early group of trilobites – were able to roll themselves up defensively, according to Dr Javier Ortega-Hernández from the...

Ozone production over the southern winter pole on Mars. Image credit: ESA / ATG medialab.

Scientists Discover Third Ozone Layer in Atmosphere of Mars

Sep 30, 2013 by News Staff

A new study published in the journal Nature Geoscience explains how global atmospheric circulation creates a previously undetected layer of ozone above...

The benefits of optimal testosterone. Image credit: artofmanliness.com.

Low Testosterone Levels Linked to Heart Problems in Men

Sep 30, 2013 by News Staff

Men who have low levels of testosterone, a key male sex hormone that helps maintain sex drive, sperm production and bone health, may have a slightly elevated...

This image shows the Cat's Paw Nebula. Image credit: ArTeMiS team / Ph. André, M. Hennemann, V. Revéret et al / ESO / J. Emerson / VISTA. Acknowledgment: Cambridge Astronomical Survey Unit.

APEX Zooms in on Cat’s Paw Nebula

Sep 27, 2013 by News Staff

Astronomers using ArTeMiS, a new instrument installed on the Atacama Pathfinder Experiment – a 12-m diameter telescope in the Atacama Desert, have...

Dr Walsh with colleagues at work excavating a Bronze Age site. Image credit: Kevin Walsh, the University of York.

8,000 Year Old Evidence of Human Activity Found in Alps

Sep 27, 2013 by News Staff

Fourteen-year-long archaeological excavations in the Parc National des Écrins in the southern Alps have provided evidence of human activity from the...

Akawaio penak. Image credit: Hernán López-Fernández.

Akawaio penak: New Species, Genus of Electric Fish Found in Guyana

Sep 27, 2013 by Natali Anderson

Biologists from Canada, the United States, Colombia and Guyana have described a new species and genus of electric knifefish from South America. Akawaio...

NASA's Curiosity Rover. Image credit: NASA.

Curiosity: Martian Surface Soil Contains Two Percent Water

Sep 27, 2013 by News Staff

In five papers published today in the journal Science, scientists using the ChemCam, CheMin instruments, the Alpha Particle X-ray Spectrometer (APXS) and...

Some of the rocks that Dr Crowe and his colleagues studied in South Africa. Image credit: Nic Beukes.

Oxygen Appeared in Earth’s Atmosphere 3 Billion Years Ago

Sep 26, 2013 by Natali Anderson

An analysis of three-billion-year-old soils from South Africa shows that oxygen appeared in the atmosphere more than 600 million years earlier than previously...

Entelognathus: Paleontologists Find 419-Million-Year-Old Jawed Fish

Sep 26, 2013 by Sergio Prostak

A team of paleontologists from China, the United States and Sweden has found a well-preserved fossil of ancient fish that lived in what is now China about...

Periodic table of the elements (University of California, Irvine).

IUPAC Revises Standard Atomic Weights for Gold, Fluorine, Arsenic and other 16 Elements

Sep 26, 2013 by News Staff

Nineteen elements – including gold, arsenic, fluorine, cadmium, molybdenum and thorium – have been assigned new atomic weights, according to...

PSR J1824-2452I: Missing Link between Radio and X-Ray Pulsars

Sep 26, 2013 by News Staff

A team of astronomers led by Dr Alessandro Papitto from the Institute of Space Studies of Barcelona has discovered a fast-spinning pulsar that switches...

Aboriginal rock art at Nourlangie, Australia. Image credit: Thomas Schoch /CC BY-SA 2.5.

Research Examines How Aboriginal Australians Coped with Climate Change around 20,000 Years Ago

Sep 25, 2013 by News Staff

A new study, reported in the Journal of Archaeological Science, explores behavior of Aboriginal Australians during the Last Glacial Maximum (LGM for short). Aboriginal...

Digging underway at the Roman theater, Interamna Lirenas. Image credit: N. Sodeberg.

Roman Theater Unearthed at Interamna Lirenas

Sep 25, 2013 by Enrico de Lazaro

Archaeologists have unearthed remains of a theater at the archaeological site of the Roman town of Interamna Lirenas, founded in the late 4th century BC. Digging...

This new Hubble image shows the galaxy cluster Abell 1689. Image credit: NASA / ESA / the Hubble Heritage Team / STScI / AURA / J. Blakeslee / NRC Herzberg Astrophysics Program / Dominion Astrophysical Observatory / H. Ford / JHU.

Hubble Finds Largest Population of Globular Clusters in Abell 1689

Sep 25, 2013 by News Staff

New, deep observations of the massive galaxy cluster Abell 1689 have revealed that it hosts the largest population of globular clusters ever found. This...

The lepidosaurs were the ancestors of lizards, snakes and tuatara. This image shows the extant tuatara Sphenodon punctatus. Image credit: Keres H / CC BY 3.0.

Paleontologists Discover Earliest Fossil Record of Lepidosaurs

Sep 25, 2013 by Enrico de Lazaro

Two skull fossils unearthed in Germany provide the first direct evidence that lepidosaurs – reptiles closely related to lizards, snakes and tuatara...

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