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Researchers Find Presolar Grains in Unusual Inclusion from Allende Meteorite

Curious Marie is a sample of the Allende meteorite, which fell in northern Mexico in February 1969. The white, fuzzy-looking features in this fragment are calcium-aluminum-rich inclusions -- some of the first solids to condense in the Solar System. Image credit: The Planetary Society.
Jan 29, 2020 by News Staff

Scientists from Washington University, St. Louis, Caltech and the University of Chicago have found presolar grains — tiny bits of solid interstellar material formed before the Sun was born — in Curious Marie, a sample of the famous Allende meteorite. Curious Marie is a sample of the Allende meteorite, which fell in northern Mexico in February 1969. The white, fuzzy-looking features in this fragment are calcium-aluminum-rich inclusions...

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Australian Researchers Grow 2019-nCoV Coronavirus from Patient Sample

Jan 29, 2020 by News Staff

A team of scientists at the Peter Doherty Institute for Infection and Immunity (Doherty Institute) in Melbourne, Australia, has successfully grown the...

This image of the Tarantula Nebula combines data from multiple Spitzer observations, most recently in February and September 2019. The image shows the nebula in two wavelengths of infrared light, each represented by a different color. The red color at the heart of the nebula shows the presence of particularly hot gas emitting infrared light at a wavelength of 4.5 micrometers. The blue regions are dust composed of molecules called polycyclic aromatic hydrocarbons. Regions emitting both wavelengths appear white. Image credit: NASA / JPL-Caltech.

Spitzer Sees Tarantula Nebula in Infrared Light

Jan 28, 2020 by News Staff

Using data from NASA’s Spitzer Space Telescope, which is set to be retired on January 30, 2020, astronomers have generated a new view of the Tarantula...

The northern paper wasp (Polistes fuscatus). Image credit: Judy Gallagher / CC BY 2.0.

Scientists Trace Evolution of Visual Individual Recognition in Paper Wasps

Jan 28, 2020 by News Staff

A team of researchers has sequenced and analyzed the genomes of Polistes fuscatus, a species of paper wasp that has uniquely evolved visual individual...

Reconstruction of a Neanderthal. Image credit: Neanderthal Museum.

Neanderthals Entered Southern Siberia on Two Separate Occasions, Study Says

Jan 28, 2020 by News Staff

Neanderthals were once widespread across Europe and western Asia. They also penetrated into the Altai Mountains of southern Siberia, but the geographical...

Artist’s impression of a sunset on the ultrahot Jupiter KELT-9b. Image credit: Denis Bajram.

Ultrahot Jupiter KELT-9b is So Hot that Even Atmospheric Hydrogen Molecules are ‘Torn to Shreds’

Jan 28, 2020 by News Staff

Using data from NASA’s Spitzer Space Telescope, astronomers have found evidence that the heat in the atmosphere of KELT-9b, the hottest known transiting...

White fat cells (adipocytes) activate the lipolysis pathway to produce the free fatty acids that are used as heating fuel by brown adipose tissue. Nayak et al show that OPN3 is required for blue-light-enhanced activation of the lipolysis pathway. This explains the low body temperature of OPN3 mutant mice. Image credit: Nayak et al, doi: 10.1016/j.celrep.2019.12.043.

Fat Cells Can Sense Light, Animal Study Shows

Jan 28, 2020 by News Staff

Light exposure regulates how two kinds of fat cells (adipocytes) work together to produce the raw materials that all other cells use for energy, according...

These 2.7 billion-year-old meteorites, about half a millimeter across, fell into the ocean and were collected from the deep sea. Image credit: Donald Brownlee / University of Washington.

Archean Earth’s Atmosphere was Rich in Carbon Dioxide, Researchers Say

Jan 27, 2020 by News Staff

A team of researchers from the University of Washington and NASA’s Ames Research Center has analyzed iron-rich micrometeorites collected from 2.7 billion-year-old...

The top image shows a knee joint in a healthy rat (white indicates cartilage); the second image from top shows a joint with grade 2 untreated osteoarthritis; the third image shows a joint with osteoarthritis that has worsened from grade 2 to grade 4 after six weeks of placebo therapy; the bottom image shows a joint with osteoarthritis that improved from grade 2 to grade 1 (mild) after six weeks of combination therapy with αKLOTHO and TGFβR2. Image credit: Salk Institute.

Powerful Combination of Two Experimental Drugs Counteracts Osteoarthritis in Rats

Jan 27, 2020 by News Staff

A research team headed by scientists at the Salk Institute for Biological Studies has discovered that a combination of two molecules, alpha-KLOTHO (αKLOTHO)...

A group of Allosaurus jimmadseni attacks a juvenile sauropod dinosaur. Image credit: Todd Marshall.

New Species of Carnivorous Dinosaur Unveiled: Allosaurus jimmadseni

Jan 27, 2020 by Enrico de Lazaro

A new species of carnivorous theropod dinosaur has been identified from the fossilized remains discovered in the 1990s in northeastern Utah and Wyoming, the...

Newly-Identified Coronavirus 2019-nCoV: Here’s What You Need to Know

Jan 27, 2020 by News Staff

The current outbreak of viral pneumonia in Wuhan, a rapidly flourishing capital city of the Hubei province and the traffic hub of central China, was caused...

This Hubble image shows NGC 7541, a barred spiral galaxy located 103.7 million light-years away in the constellation of Pisces. Image credit: NASA / ESA / Hubble / A. Riess et al.

Hubble Space Telescope Spies NGC 7541

Jan 27, 2020 by Enrico de Lazaro

The NASA/ESA Hubble Space Telescope has produced an outstanding image of the barred spiral galaxy NGC 7541. This Hubble image shows NGC 7541, a barred...

Fluorescence microscopy image of cell-free mitochondria in the plasma of a healthy individual. Image credit: Dache et al, doi: 10.1096/fj.201901917RR.

Scientists Find Cell-Free Mitochondria in Human Blood

Jan 24, 2020 by Enrico de Lazaro

Mitochondria are considered as the power-generating units of the cell due to their key role in energy metabolism and intercellular communication. However,...

Astrophysicists One Step Closer to Unlocking Mystery of Superluminous Supernovae

Jan 24, 2020 by News Staff

SN 2006gy, a superluminous supernova discovered in 2006, gained its exceptional brightness when a normal Type Ia explosion smashed into a dense shell of...

High-resolution SEM micrograph of the mycelium-like structures from the Mbuji-Mayi Supergroup, Democratic Republic of Congo. Image credit: Bonneville et al, doi: 10.1126/sciadv.aax7599.

715-Million-Year-Old Fungi Microfossils Found

Jan 24, 2020 by Natali Anderson

An international team of researchers has found the microscopic fungal filaments and mycelium-like structures in 715-million-year-old (Neoproterozoic Era)...

This image shows the ancient dwarf star J0815+4729 (center). Image credit: Centre de Données astronomiques de Strasbourg / SIMBAD / SDSS.

Astronomers Find Huge Amount of Oxygen in Ancient Dwarf Star

Jan 24, 2020 by News Staff

Using high-resolution spectroscopic observations from the High-Resolution Echelle Spectrometer (HIRES) on the 10-m Keck I telescope at the W. M. Keck Observatory,...

A researcher collects gas samples at Soda Springs in the Philippines. Image credit: Jackson School of Geosciences, University of Texas at Austin.

Researchers Discover Bubbling CO2 Hotspot in Philippines

Jan 23, 2020 by News Staff

Groundwater flow from land to sea could have important coastal impacts but it is usually unrecognized. Delicate reefs may be particularly sensitive to...

Cassini captured this image of Enceladus as it neared the moon for its closest-ever dive past the moon’s active south polar region. The image was taken in visible light with the spacecraft’s narrow-angle camera on October 28, 2015. The image shows heavily cratered northern latitudes at top, transitioning to fractured, wrinkled terrain in the middle and southern latitudes. The wavy boundary of the moon's active south polar region is visible at bottom, where it disappears into wintry darkness. This view looks towards the Saturn-facing side of Enceladus. The image was taken at a distance of approximately 60,000 miles (96,000 km) from Enceladus and at a Sun-Enceladus-spacecraft, or phase, angle of 45 degrees. Image credit: NASA / JPL-Caltech / Space Science Institute.

Geochemical Model Reveals Inner Complexity of Enceladus

Jan 23, 2020 by News Staff

Enceladus, an ocean-harboring moon of Saturn, erupts a plume that contains gases and frozen sea spray into space. By understanding the composition of the...

Reconstructed life appearance of the straight-tusked elephant Palaeoloxodon antiquus in (top) side and (bottom) frontal view, based on remains uncovered from the Neumark-Nord 1 site in Saxony-Anhalt, Germany. Image credit: Hsu Shu-yu.

New Research Tracks Evolution of Extinct Straight-Tusked Elephants

Jan 23, 2020 by News Staff

Palaeoloxodon is an extinct genus of straight-tusked elephants that lived throughout Europe and Asia during the Pleistocene and Holocene. It migrated out...

The interior of the Borexino detector. Image credit: Borexino Collaboration.

Borexino Detector Spots 53 Geoneutrinos

Jan 23, 2020 by Enrico de Lazaro

An underground particle detector called the Borexino detector has detected 53 antielectron neutrinos emanating from the Earth, so-called geoneutrinos. The...

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