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Laser-ranged satellite measurement now accurately reflects Earth's tidal perturbations![]() Washington DC (SPX) Feb 21, 2018 Tides on Earth have a far-reaching influence, including disturbing satellites' measurements by affecting their motion. This disturbance can be studied using a model for the gravitational potential of the Earth, taking into account the fact that Earth's shape is not spherical. The LAser RElativity Satellite (LARES), is the best ever relevant test particle to move in the Earth's gravitational field. In a new study published in EPJ Plus, LARES proves its efficiency for high-precision probing of Gener ... read more |
"Ultramassive" Black Holes Discovered in Far-Off GalaxiesMontreal, Canada (SPX) Feb 21, 2018 Thanks to data collected by NASA's Chandra X-ray telescope on galaxies up to 3.5 billion light-years away from Earth, an international team of astrophysicists was able to detect what is likely to be ... more
No Relation Between a Supermassive Black Hole and Its Host GalaxyTokyo, Japan (SPX) Feb 21, 2018 Using the Atacama Large Millimeter/submillimeter Array (ALMA) to observe an active galaxy with a strong ionized gas outflow from the galactic center, a team led by Dr. Yoshiki Toba of the Academia S ... more
Overabundance of massive stars in the Tarantula NebulaCanary Islands, Spain (SPX) Feb 20, 2018 Lead author Fabian Schneider, a Hintze Research Fellow in the University of Oxford's Department of Physics, said: "We were astonished when we realised that 30 Doradus has formed many more massive st ... more
Stellar winds behaving unexpectedlyParis (ESA) Feb 20, 2018 ESA's XMM-Newton has spotted surprising changes in the powerful streams of gas from two massive stars, suggesting that colliding stellar winds don't behave as expected. Massive stars - several ... more |
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| Previous Issues | Feb 20 | Feb 19 | Feb 16 | Feb 15 | Feb 14 |
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CALIFA renews the classification of galaxiesCanary Islands, Spain (SPX) Feb 20, 2018 The objects within galaxies have two basic types of motions: orbiting around the galaxy centre in a regular organized disc, or in orbits oriented at random without a clear direction of rotaiton. If ... more
Satellite galaxies of Centaurus A are on a coordinated danceWashington DC (SPX) Feb 20, 2018 The satellite dwarf galaxies orbiting around the much larger galaxy Centaurus A are rotating in synchrony around their host, to researchers' surprise. (Researchers expected them to orbit at random). ... more
New study challenges popular theory about dwarf galaxiesCanberra, Australia (SPX) Feb 20, 2018 A new international study involving The Australian National University (ANU) has found a plane of dwarf galaxies orbiting around Centaurus A in a discovery that challenges a popular theory about how ... more
News about Tabby's star, the most mysterious star of 2017Canary Islands, Spain (SPX) Feb 20, 2018 KIC 8462852, or "Tabby's Star" named after Tabetha Boyajian, the researcher at Louisiana State University (USA) who is leading its study, is a medium sized star, some 50% bigger than the Sun, and 1, ... more
NASA's Transiting Exoplanet Survey Satellite arrives at KSC for launchGreenbelt MD (SPX) Feb 16, 2018 NASA's next planet-hunting mission has arrived in Florida to begin preparations for launch. The Transiting Exoplanet Survey Satellite (TESS) is scheduled to launch on a SpaceX Falcon 9 rocket from C ... more |
![]() Rotating dusty gaseous donut around an active supermassive black hole
Hubble's Window into the Cosmic PastWashington DC (SPX) Feb 19, 2018 This image from the NASA/ESA Hubble Space Telescope shows the galaxy cluster PLCK G004.5-19.5. It was discovered by the ESA Planck satellite through the Sunyaev-Zel'dovich effect - the distortion of ... more |
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Hubble sees Neptune's mysterious shrinking storm Baltimore MD (SPX) Feb 16, 2018 Three billion miles away on the farthest known major planet in our solar system, an ominous, dark storm - once big enough to stretch across the Atlantic Ocean from Boston to Portugal - is shrinking ... more
Physicists create new form of lightBoston MA (SPX) Feb 16, 2018 Try a quick experiment: Take two flashlights into a dark room and shine them so that their light beams cross. Notice anything peculiar? The rather anticlimactic answer is, probably not. That's becau ... more
Kepler Scientists Discover Almost 100 New ExoplanetsCopenhagen, Denmark (SPX) Feb 16, 2018 Based on data from NASA's K2 mission an international team of scientists have just confirmed nearly 100 new exoplanets, planets located outside our solar system. This brings the total number of new ... more
Research will help scientists understand how stars create elementsCanberra, Australia (SPX) Feb 13, 2018 New research involving The Australian National University (ANU) has, for the first time, demonstrated a long-theorised nuclear effect, in a feat that will help scientists understand how stars evolve ... more
NASA's OSIRIS-REx Captures New Earth-Moon ImageWashington DC (SPX) Feb 15, 2018 As part of an engineering test, NASA's OSIRIS-REx spacecraft captured this image of the Earth and Moon using its NavCam1 imager on January 17 from a distance of 39.5 million miles (63.6 million km). ... more |
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New Horizons captures record-breaking images in the Kuiper Belt Washington DC (SPX) Feb 09, 2018
NASA's New Horizons spacecraft recently turned its telescopic camera toward a field of stars, snapped an image - and made history.
The routine calibration frame of the "Wishing Well" galactic open star cluster, made by the Long Range Reconnaissance Imager (LORRI) on Dec. 5, was taken when New Horizons was 3.79 billion miles (6.12 billion kilometers, or 40.9 astronomical units) from Earth - ... more |
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NASA's Transiting Exoplanet Survey Satellite arrives at KSC for launch Greenbelt MD (SPX) Feb 16, 2018
NASA's next planet-hunting mission has arrived in Florida to begin preparations for launch. The Transiting Exoplanet Survey Satellite (TESS) is scheduled to launch on a SpaceX Falcon 9 rocket from Cape Canaveral Air Force Station nearby NASA's Kennedy Space Center in Florida no earlier than April 16, pending range approval.
TESS was delivered Feb. 12 aboard a truck from Orbital ATK in Dull ... more |
Mars Rover Opportunity Reaches 5000 Sols On Mars Pasadena CA (JPL) Feb 16, 2018
NASA's Mars Exploration Rover Opportunity keeps providing surprises about the Red Planet, most recently with observations of possible "rock stripes."
The ground texture seen in recent images from the rover resembles a smudged version of very distinctive stone stripes on some mountain slopes on Earth that result from repeated cycles of freezing and thawing of wet soil. But it might also be ... more |
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NASA's OSIRIS-REx Captures New Earth-Moon Image Washington DC (SPX) Feb 15, 2018
As part of an engineering test, NASA's OSIRIS-REx spacecraft captured this image of the Earth and Moon using its NavCam1 imager on January 17 from a distance of 39.5 million miles (63.6 million km). When the camera acquired the image, the spacecraft was moving away from home at a speed of 19,000 miles per hour (8.5 kilometers per second).
Earth is the largest, brightest spot in the center ... more |
Astronomers Concerned with Proposed Cancellation of Space Telescope Washington DC (SPX) Feb 15, 2018
Sharing alarm voiced by other scientists, leaders of the American Astronomical Society (AAS) are expressing grave concern over the administration's proposed cuts to NASA's astrophysics budget and the abrupt cancellation of the Wide Field Infrared Survey Telescope (WFIRST).
"We cannot accept termination of WFIRST, which was the highest-priority space-astronomy mission in the most recent dec ... more |
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Tracking a typhoon's seismic footprint Princeton NJ (SPX) Feb 16, 2018
Climatologists are often asked, "Is climate change making hurricanes stronger?" but they can't give a definitive answer because the global hurricane record only goes back to the dawn of the satellite era. But now, an intersection of disciplines - seismology, atmospheric sciences, and oceanography - offers an untapped data source: the continuous seismic record, which dates back to the early 20th ... more |
Five Years after the Chelyabinsk Meteor: NASA Leads Efforts in Planetary Defense Pasadena CA (JPL) Feb 16, 2018
A blinding flash, a loud sonic boom, and shattered glass everywhere. This is what the people of Chelyabinsk, Russia, experienced five years ago when an asteroid exploded over their city the morning of Feb. 15, 2013.
The house-sized asteroid entered the atmosphere over Chelyabinsk at over eleven miles per second and blew apart 14 miles above the ground. The explosion released the energy equ ... more |
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Pulsating aurora mysteries uncovered with help from THEMIS and ERG missions Greenbelt MD (SPX) Feb 21, 2018
Sometimes on a dark night near the poles, the sky pulses a diffuse glow of green, purple and red. Unlike the long, shimmering veils of typical auroral displays, these pulsating auroras are much dimmer and less common. While scientists have long known auroras to be associated with solar activity, the precise mechanism of pulsating auroras was unknown.
Now, new research, using data from NASA ... more |
Long March rockets on ambitious mission in 2018 Xichang, China (XNA) Feb 15, 2018
The Long March-3B rocket launched Monday from the Xichang Satellite Launch Center in southwest China's Sichuan Province marked the seventh successful mission of the Long March rocket series since the beginning of 2018.
The year 2018 will be an ambitious year for China's space program, with the largest number of Long March rocket launches.
According to Cen Zheng, rocket system command ... more |
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Astronomers Concerned with Proposed Cancellation of Space Telescope Washington DC (SPX) Feb 15, 2018
Sharing alarm voiced by other scientists, leaders of the American Astronomical Society (AAS) are expressing grave concern over the administration's proposed cuts to NASA's astrophysics budget and the abrupt cancellation of the Wide Field Infrared Survey Telescope (WFIRST).
"We cannot accept termination of WFIRST, which was the highest-priority space-astronomy mission in the most recent dec ... more |
Researchers invent tiny, light-powered wires to modulate brain's electrical signals Chicago IL (SPX) Feb 21, 2018
The human brain largely remains a black box: How the network of fast-moving electrical signals turns into thought, movement and disease remains poorly understood. But it is electrical, so it can be hacked--the question is finding a precise, easy way to manipulate electrical signaling between neurons.
A new University of Chicago study shows how tiny, light-powered wires could be fashioned o ... more |
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Ensuring fresh air for all Paris (ESA) Feb 20, 2018 A start-up company from an ESA business incubator is offering affordable air-quality monitors for homes, schools and businesses using technology it developed for the International Space Station.
"We realised that the problem astronauts face with limited of exchange of air inside the International Space Station is also the case for many people inside buildings that have little or no ventila ... more |
Polar vortex defies climate change in the Southeast Hanover NH (SPX) Feb 15, 2018
Overwhelming scientific evidence has demonstrated that our planet is getting warmer due to climate change, yet parts of the eastern U.S. are actually getting cooler. According to a Dartmouth-led study in Geophysical Research Letters, the location of this anomaly, known as the "U.S. warming hole," is a moving target.
During the winter and spring, the U.S. warming hole sits over the Southeast, ... more |
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Coming decades vital for future sea level rise: study Paris (AFP) Feb 20, 2018
How quickly humanity draws down the greenhouse gases driving global warming will determine whether sea levels rise half-a-metre or six times that, even if Paris climate pact goals are fully met, researchers reported Tuesday in a study.
"The trajectory of emissions in the next few decades will shape our coastlines in the centuries to come," lead author Matthias Mengel, a scientist at the Pots ... more |
New method enables high-resolution measurements of magnetism Uppsala, Sweden (SPX) Feb 13, 2018
In a new article, published in Nature Materials, researchers from Beijing, Uppsala and Julich have made significant progress allowing very high resolution magnetic measurements. With their method it is possible to measure magnetism of individual atomic planes.
Magnetic nanostructures are used in a wide range of applications. Most notably, to store bits of data in hard drives. These structu ... more |
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