Featured News

Lungs Play Previously Unknown Role in Blood Production

Visualization of resident megakaryocytes in the lungs. Image credit: Emma Lefrançais et al, doi: 10.1038/nature21706.
Mar 27, 2017 by News Staff

Using video microscopy in a living mouse lung, a team of researchers at the Universities of California, San Francisco (UCSF) & Los Angeles (UCLA), has revealed that the lungs play a previously unrecognized role in blood production. Visualization of resident megakaryocytes in the lungs. Image credit: Emma Lefrançais et al, doi: 10.1038/nature21706. The team, headed by UCSF Professor Mark R. Looney, found that the lungs produced more than half...

read more...
This artist’s impression displays TRAPPIST-1 and its planets reflected in a surface. Image credit: NASA / R. Hurt / T. Pyle.

TRAPPIST-1 System Ideal for Planet-Hopping Life?

Mar 24, 2017 by James Romero

Exoplanet hunters struck gold earlier this year with the discovery of seven rocky bodies orbiting around dwarf star TRAPPIST-1, a find that both raised...

Showcase of the different types of changes identified in high-resolution images of 67P/Churyumov–Gerasimenko during more than two years of monitoring by ESA’s Rosetta spacecraft. The approximate locations of each feature are marked on the central context images. Dates of when the ‘before’ and ‘after’ images were taken are also indicated. Note that the orientation and resolution between image pairs may vary, therefore in each image set arrows point to the location of the changes, for guidance. Image credit: ESA / Rosetta / NAVCAM / MPS for OSIRIS Team / MPS / UPD / LAM / IAA / SSO / INTA / UPM / DASP / IDA / CC BY-SA 3.0 IGO.

Spectacular Changes Spotted on 67P/Churyumov-Gerasimenko

Mar 22, 2017 by News Staff

A study published this week in the journal Science summarizes the types of surface changes — including the growing fractures, collapsing cliffs,...

Torvosaurus gurneyi. Image credit: © Sergey Krasovskiy.

Paleontologists Redraw Dinosaur Family Tree

Mar 22, 2017 by News Staff

A team of paleontologists from the University of Cambridge and the Natural History Museum, London, UK, has proposed radical changes to the dinosaur family...

A broad plume of dust is imaged by Rosetta’s navigation camera on July 10, 2015, which can be traced back to an area on the comet that encompasses the Seth region; the Aswan cliff is included within the marked rectangle. Image credit: ESA / Rosetta / NavCam / MPS / MPS for OSIRIS Team / UPD / LAM / IAA / SSO / INTA / UPM / DASP / IDA / CC BY-SA IGO 3.0.

Collapsing Cliff Reveals Pristine Interior of Comet 67P/Churyumov-Gerasimenko

Mar 22, 2017 by News Staff

In a study published in the journal Nature Astronomy, researchers make the first definitive link between an outburst of dust and gas from the nucleus of...

Tsimane village from the water. Image credit: Hillard Kaplan et al.

Bolivian Tsimane People Have World’s Healthiest Arteries, Study Says

Mar 20, 2017 by News Staff

According to a new study published in The Lancet, the Tsimane (pronounced chee-MAH-nay) — an indigenous people of lowland Bolivia — have the...

The Tatama tapaculo (Scytalopus alvarezlopezi) upon capture at Cerro Montezuma, Risaralda department, Colombia, April 2, 2015. Image credit: Julian Heavyside, doi: 10.1642/AUK-16-205.1.

Tatama Tapaculo: New Bird Species Discovered in Colombia

Mar 20, 2017 by Sergio Prostak

A new species of tapaculo — called the Tatama tapaculo (Scytalopus alvarezlopezi) — has been discovered in the cloud forests of Colombia’s...

An artistic conception of the early Earth. Image credit: Simone Marchi / NASA.

Geologists Find Remnants of Early Earth’s Crust in Canada

Mar 17, 2017 by News Staff

An analysis of rock samples collected from the Superior Province, the region in Canada just north of the Great Lakes, suggests the samples contain components...

This enhanced-color view of Enceladus is largely of the southern hemisphere and includes the south polar terrain at the bottom of the image. Ancient craters remain somewhat pristine in some locales, but have clearly relaxed in others. Northward-trending fractures, likely caused by a change in the moon’s rate of rotation and the consequent flattening of the moon’s shape, rip across the southern hemisphere. The south polar terrain is marked by a striking set of ‘blue’ fractures and encircled by a conspicuous and continuous chain of folds and ridges, testament to the forces within Enceladus that have yet to be silenced. The mosaic was created from 21 false-color frames taken during Cassini’s close approaches to Enceladus on March 9 and July 14, 2005. Images taken using filters sensitive to UV, visible and IR light (spanning wavelengths from 338 to 930 nm) were combined to create the individual frames. Image credit: NASA / JPL / Space Science Institute.

Cassini Spots Anomalously Warm Subsurface Region on Enceladus

Mar 16, 2017 by News Staff

A new study, based on microwave observations by NASA’s Cassini orbiter, shows that the south polar region of Saturn’s frozen moon Enceladus is warmer...

Study: Spiders Eat 400-800 Million Tons of Insects and Other Prey Annually

Mar 15, 2017 by News Staff

According to a new study published in The Science of Nature, the annual prey kill of the global spider community is in the range of 400-800 million metric...

World’s Oldest Red Algae Fossils Found

Mar 15, 2017 by Natali Anderson

An international team of paleontologists from the Nordic Center for Earth Evolution and the Swedish Museum of Natural History has unearthed uniquely well-preserved...

An artist’s impression of a white dwarf star (left) in orbit around a black hole and so close that much of its material is being pulled away. There is a hotspot where the gas from the white dwarf hits the disc of matter swirling around the black hole. The black hole itself is surrounded by a cloud of ionized gas, which contains large amounts of oxygen. Image credit: NASA / CXC / M. Weiss.

Astronomers Find Record-Breaking White-Dwarf-Black-Hole Binary in Globular Cluster 47 Tucanae

Mar 14, 2017 by News Staff

Using data from the Australia Telescope Compact Array, NASA’s Chandra X-ray Observatory and NuSTAR telescope, a team of astronomers has found evidence...

Archean Earth. Image credit: Francis Reddy, NASA’s Goddard Space Flight Center.

Scientists Propose New Contributing Cause for ‘Great Oxidation Event’

Mar 14, 2017 by News Staff

In the Archean Eon, more than 2.3 billion years ago, Earth’s atmosphere spent about a million years filled with a methane-rich haze; and this haze drove...

The massive black hole shown at left in this drawing is able to rapidly grow as intense radiation from a galaxy nearby shuts down star formation in its host galaxy. Image credit: John Wise, Georgia Tech.

How Universe’s First Supermassive Black Holes Were Born

Mar 13, 2017 by News Staff

An international team of astrophysicists from the United States, Ireland and Finland has come up with the formula for the formation of the first supermassive...

Could Mysterious Fast Radio Bursts Be Powering Extragalactic Light Sails?

Mar 12, 2017 by News Staff

Fast radio bursts (FRBs) — powerful radio flashes lasting just milliseconds, with mysterious origins that continue to be a matter of debate —...

Ancient crocodile-like animals first saw easy meals on land and then evolved limbs that enabled them to get there. Image credit: Zina Deretsky, National Science Foundation.

New Hypothesis for Origin of Terrestrial Vertebrates Proposed

Mar 10, 2017 by News Staff

It was the power of the eyes — not the limbs — that first led our ancient aquatic ancestors to make the leap from water to land, according...

Cerealia Facula, a bright dome in the center of Occator Crater on the dwarf planet Ceres, is shown in enhanced color in this view from NASA’s Dawn spacecraft. Image credit: NASA / JPL-Caltech / UCLA / MPS / DLR / IDA / PSI / LPI.

Researchers Determine Age of Ceres’ Brightest Spot

Mar 10, 2017 by News Staff

Cerealia Facula, a dome-like feature located in the center of Ceres’ Occator crater, is only 4 million years old — approximately 30 million years...

Saturn’s small moon Pan

Pan: Saturn’s Flying Saucer-Shaped Moon Up Close

Mar 10, 2017 by Enrico de Lazaro

NASA’s Cassini spacecraft captured these stunning images of Pan, the second-innermost moon of Saturn, during a close flyby on March 7, 2017. These images...

El Sidron Neanderthals taste wild mushrooms, pine nuts and forest moss. Image credit: Abel Grau, CSIC Communication.

Neanderthals Used Plant-Based Painkillers, Ate Rhinoceros Meat, Mushrooms, Nuts, and Moss

Mar 9, 2017 by News Staff

An analysis of ancient DNA entrapped in Neanderthal dental calculus (calcified dental plaque) has revealed the complexity of Neanderthal behavior, including...

This artist’s impression shows what the galaxy A2744_YD4 might look like. Image credit: ESO / M. Kornmesser.

ALMA Detects Vast Amounts of Interstellar Dust, Oxygen in Very Young, Distant Galaxy

Mar 9, 2017 by News Staff

New observations using the Atacama Large Millimeter/submillimeter Array (ALMA) have demonstrated that A2744_YD4 — the youngest and most remote galaxy...

© 2011-2026. Sci.News. All Rights Reserved. | Back to top