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Giant impact may explain origin of Martian moons Phobos and Deimos

The Martian moons, Phobos and Deimos, may have been the result of a giant impact that sent rocks and debris into orbit around Mars, instead of asteroids that were captured by the planet’s gravity as previously thought.

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Environmental Research Center to help with Chesapeake Bay seagrass restoration

A research team from The Smithsonian Environmental Research Center and Virginia's Old Dominion University will be awarded $110,999 to develop a tool to help seagrass restorers predict which places will be the best for planting seagrasses, the Virginia Sea Grant has announced.

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Invasive oriental shrimp found in Chesapeake Bay by Smithsonian scientists

Twenty years ago scientists at the Marine Invasions Lab of the Smithsonian Environmental Research Center in Edgewater, Md., began studying the interactions between native grass […]

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Rising ocean temperatures and acidity may deliver deadly one-two punch to the world’s corals

A recent experiment by scientists at the Smithsonian Tropical Research Institute in Panama has revealed just how rising atmospheric carbon dioxide will deliver a one-two […]

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Six orbiting planets sets record for Sun-like stars say Kepler, Smithsonian astronmers

Last week, the Kepler team and CfA astronomers announced the discovery of a system of six transiting planets around one Sun-like star. The previous record holder for the number of transiting planets was three.

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Very Large Baseline Array telescope is helping Smithsonian astronomers remap Milky Way and Andromeda galaxies

Recent work has added dozens of new measurements to star-forming regions in the Milky Way. These measurements have changed the map of the Milky Way, indicating our galaxy has four spiral arms, not two, as previously thought.

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JoGayle Howard, National Zoological Park pioneer in reproductive biology, dies

For more than three decades JoGayle Howard dedicated her life and work to reproducing endangered species.

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A St. Partick’s Day treat for the Zoo’s red-ruffed lemur

The National Zoological Park’s 23-year-old male red-ruffed lemur, Joven, enjoys a tasty St. Patrick’s Day frozen treat made of apples, pears, cucumbers, honeydew and diluted […]

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X-ray stripes in exploded star may reveal highest energies of cosmic rays produced in our Galaxy

The discovery of a pattern of X-ray “stripes” in the remains of an exploded star may provide the first direct evidence that a cosmic event […]

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Evidence of asteroid mining in our galaxy may lead to the discovery of extraterrestrial civilizations

If intelligent and more advanced civilizations exist on other planets then its a good bet that some of these civilizations turned to asteroid mining long ago. If so, the hallmarks of their mining activities, such as unusual dirty halos of cast-off dust and debris around large asteroids, might be detectable from earth.

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New bacteria genome may help solve mystery of how methylmercury is made

A new bacterial genome sequence could help researchers solve a mystery as to how microorganisms produce a highly toxic form of mercury.

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Hormone tests show Mei Xiang, the National Zoo’s female giant panda, may be pregnant

Scientists at the Smithsonian’s National Zoo detected a secondary rise in urinary progesterone levels in the Zoo’s female giant panda Mei Xiang (may-SHONG). This hormone rise indicates that it should be 40 to 50 days before Mei Xiang either gives birth to a cub or comes to the end of a pseudopregnancy, or false pregnancy, which is common in giant pandas.

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Methods for calculating species extinction rates overestimate extinction, says Smithsonian scientist

The most widely used methods for calculating species extinction rates are "fundamentally flawed" and overestimate extinction rates by as much as 160 percent, life scientists report May 19 in the journal Nature.

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Chandra X-Ray Observatory finds massive black holes common in early universe

Using the deepest X-ray image ever taken, astronomers found the first direct evidence that massive black holes were common in the early universe. This discovery from NASA's Chandra X-ray Observatory shows that very young black holes grew more aggressively than previously thought, in tandem with the growth of their host galaxies.

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New comet may be visible to the naked eye in 2013

Astronomers have discovered a new comet that they expect will be visible to the naked eye in early 2013.A preliminary orbit computed by the Minor Planet Center at the Smithsonian Astrophysical Observatory in Cambridge, Mass., shows that the comet will come within about 30 million miles of the sun in early 2013, about the same distance as Mercury. The comet will pose no danger to Earth.

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Varied diet has allowed gray whales to survive millions of years, study reveals

Gray whales survived many cycles of global cooling and warming over the past few million years, likely by exploiting a more varied diet than they do today, according to a new study by University of California, Berkeley, and Smithsonian Institution paleontologists.

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Endangered river turtle’s genes reveal ancient influence of Maya Indians

Small tissue samples collected from 238 wild turtles at 15 different locations across their range in Southern Mexico, Belize and Guatemala revealed a “surprising lack” of genetic structure, the scientists write in a recent paper in the journal Conservation Genetics.

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Research on tungara frogs may be applicable to hearing loss/attention deficits in humans

A new study has revealed information about the way tungara frogs in the tropical rain forest hear, sort, and process sounds which is very similar to the way humans do. The knowledge could be applicable to communication disorders associated with hearing loss and attention deficits or difficulties.

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Alaska’s cold waters no barrier to invasive marine species, scientists say

Alaska’s pristine coastline is ripe for an influx of invasive marine species such as the European green crab and the rough periwinkle (an Atlantic sea snail) warns a new study by a team of scientists from the Smithsonian Environmental Research Center.

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New finding may enable scientists to bolster genetic diversity of captive cheetah population

Researchers at the Smithsonian Conservation Biology Institute have discovered why older females are rarely able to reproduce—and hope to use this information to introduce vital […]

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Crab pulsar dazzles astronomers with its gamma-ray beams

The same object that dazzled skygazers in 1054 C.E. continues to dazzle astronomers today by pumping out radiation at higher energies than anyone expected.

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Frigid water cloud may be source of water delivered to dry planets by comets

For the first time, astronomers have detected around a burgeoning solar system a sprawling cloud of water vapor that’s cold enough to form comets, which could eventually deliver oceans to dry planets.

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New details on birth of black hole Cygnus X-1 revealed by Chandra X-ray Observatory

Astronomers are confident the Cygnus X-1 system contains a black hole, and with these latest studies they have remarkably precise values of its mass, spin, and distance from Earth.

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Q&A: National Zoo veterinarian Suzan Murray is working to halt pandemic disease in hotspots around the world

Suzan Murray, chief veterinary medical officer at the Smithsonian’s National Zoological Park, recently returned from Hanoi, where she led a team of scientists training pathologists from Laos, Cambodia and Vietnam to better sample, recognize and detect wildlife diseases in hopes of preventing emerging pandemic disease.

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Digital technology allows Alexander Graham Bell’s 1880s disc recordings to be played again

In 2011, scholars from three institutions—National Museum of American History Curators Carlene Stephens and Shari Stout, Library of Congress Digital Conversion Specialist Peter Alyea and Lawrence Berkeley National Laboratory Scientists Carl Haber and Earl Cornell—came together in a newly designed preservation laboratory at the Library of Congress to recover sound from those recordings made more than 100 years ago.

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Reptiles may be spreading deadly amphibian disease in the tropics

Reptiles that live near and feed upon amphibians in the tropics may be spreading the deadly amphibian disease Chytridiomycosis (caused by the chytrid fungus Batrachochytrium dedrobatidis), holding and transporting reservoirs of the fungus on their skin.

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Uganda park rangers with cell phones may help stop next world influenza epidemic

Today, Marra is helping launch an Animal Mortality Monitoring Program in Africa intended to serve as an early warning system for emerging infectious diseases that can pass from animal populations into the human population.

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Is obesity predestined at infancy? Marmoset study may help scientists find out.

A new study of marmosets, small South American monkeys, indicates that obesity may begin very early in life and suggests that marmosets may be a helpful model for obesity in humans.

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Wayne Clough & Carlos Jaramillo, at a research site near the Panama Canal.

Smithsonian Secretary Wayne Clough, left, talks with Carlos Jaramillo, scientist at the Smithsonian Tropical Research Institute in Panama, at a research site near the Panama […]

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Chandra X-ray Observatory clocks stellar wind at 20 million mph

The fastest wind ever discovered blowing off a disk around a stellar-mass black hole has been observed by a team of astronomers using NASA’s Chandra X-ray Observatory.

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X-ray flares observed by Chandra are asteroids being torn to pieces in a black hole

A new study provides a possible explanation for the mysterious flares. The suggestion is that there is a cloud around Sgr A* containing hundreds of trillions of asteroids and comets, which have been stripped from their parent stars.

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Planet starship: runaway planets zoom at a fraction of light speed

Seven years ago, astronomers boggled when they found the first runaway star flying out of our Galaxy at a speed of 1.5 million miles per hour. Theorists wondered: Could the same thing happen to planets? New research shows that the answer is yes.

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“Ordinary” black hole discovered in a galaxy 12-million-light-years away

An international team of scientists has discovered an ‘ordinary’ black hole in the galaxy Centaurus A. This is the first time that a normal-size black hole has been detected away from the immediate vicinity of our own Galaxy.

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Top 10 gallery celebrates the Infrared Array Camera aboard the Spitzer Space Telescope

For the last 1,000 days the Infrared Array Camera, aboard NASA’s Spitzer Space Telescope, has been operating continuously to probe the universe from its most distant regions to our local solar neighborhood.

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Ghostly gamma-ray beams blast from Milky Way’s center

The newfound jets may be related to mysterious gamma-ray bubbles that Fermi detected in 2010. Those bubbles also stretch 27,000 light-years from the center of the Milky Way.

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Scientists find that rain may not always be a welcome thing to waterbirds

Their research revealed that the types of waterbirds that inhabit urban estuaries are influenced not only by urban development, but also by a far more natural process―rain.

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Alien Earths may have formed in Universe earlier than expected

New research by a team of astronomers found that planets smaller than Neptune are located around a wide variety of stars, including those with fewer heavy elements than the Sun.

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Melting snow likely created fan deposits inside Martian craters, geologists say

Accumulations of drifting snow are the most plausible explanation for the presence of a number of puzzling alluvial fan deposits found inside large impact craters on Mars

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Astronomers discover X-rays from a young supernova remnant

Astronomers using NASA's Chandra X-ray Observatory have detected X-rays emitted by the debris from the explosion of supernova 1957D.

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Chandra X-ray Observatory shows Milky Way is surrounded by halo of hot gas

stronomers have used NASA's Chandra X-ray Observatory to find evidence our Milky Way Galaxy is embedded in an enormous halo of hot gas that extends for hundreds of thousands of light years.

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Today’s domestic turkeys are genetically distinct from wild ancestors

What scientists found was that the domestic turkey that ends up on the dinner table exhibits less genetic variation than its ancestral wild counterparts, which were first domesticated in 800 B.C..

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Galactic thief: “I would have gotten away with it but for those meddling astronomers!”

One of the closest galaxies to the Milky Way almost got away with theft....

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New count reveals scrub-jay on Santa Cruz Island is among rarest bird species in the U.S.

Smithsonian Conservation Biology Institute scientists and collaborators have found that the island scrub-jay’s population on Santa Cruz Island—its only habitat—is significantly smaller than previously believed […]

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Scientists discover long-beaked echidna may not be a thing of the past in Australia

The western long-beaked echidna, one of the world's five egg-laying species of mammal, became extinct in Australia thousands of years ago…or did it?

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Highly distorted supernova remnant seen by Chandra X-ray Observatory

New data from NASA's Chandra X-ray Observatory suggest a highly distorted supernova remnant (shown here) may contain the most recent black hole formed in the Milky Way galaxy.

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New evidence of extraterrestrial life may come from dying stars

Even dying stars could host planets with life – and if such life exists, we might be able to detect it within the next decade. […]

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