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NASA Research Reveals That Mercury is Active

September 26, 2016

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Astronomers Reveal Mercury is Active

New research suggests that Mercury is contracting even today, joining Earth as a tectonically active planet. Images obtained by NASA’s MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft reveal previously undetected small fault scarps— cliff-like landforms that resemble stair steps. These scarps are small enough that scientists believe they must be geologically young, which […]

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Astronomers Explore the Hubble Ultra Deep Field

September 23, 2016

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New Images of the Hubble Ultra Deep Field

Using the Atacama Large Millimeter/submillimeter Array, international teams of astronomers explore the distant corner of the Universe first revealed in the iconic images of the Hubble Ultra Deep Field (HUDF). New ALMA observations are significantly deeper and sharper than previous surveys at millimeter wavelengths. They clearly show how the rate of star formation in young […]

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Hubble Finds a Planet Orbiting Pair of Stars in System OGLE-2007-BLG-349

September 22, 2016

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Hubble Reveals Planet Orbiting Pair of Stars

Using the Hubble Space Telescope, a team of astronomers has confirmed the existence of a planet orbiting two stars in the system OGLE-2007-BLG-349, located 8,000 light-years away towards the center of our galaxy. The planet orbits roughly 300 million miles from the stellar duo, about the distance from the asteroid belt to our sun. It […]

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Evidence of Surprising Activity on Europa

September 21, 2016

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NASA to Discuss Evidence of Surprising Activity on Europa

NASA will host a teleconference at 2 p.m. EDT Monday, September 26, to present new findings from images captured by the agency’s Hubble Space Telescope of Jupiter’s icy moon, Europa. Astronomers will present results from a unique Europa observing campaign that resulted in surprising evidence of activity that may be related to the presence of […]

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Researchers Measure Magnetic Fields in the Vicinity of a Black Hole

September 20, 2016

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Astronomers Measure Magnetic Fields in the Vicinity of the Central Black Hole

A team of researchers has measured the magnetic fields in the vicinity of the supermassive black hole at the center of NGC 1052. Two particle jets shoot out from the heart of active galaxy NGC 1052 at the speed of light, apparently originating in the vicinity of a massive black hole. A team of researchers […]

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Hubble Views Cosmic Fragments of Comet 332P/Ikeya-Murakami

September 19, 2016

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Hubble Views Comet 332P/Ikeya-Murakami

This newly released Hubble image shows comet 332P/Ikeya-Murakami. This intriguing new image captured with the NASA/ESA Hubble Space Telescope shows a dust-bathed cluster of fragments from a disintegrated comet. The comet in question, named 332P/Ikeya-Murakami, split into this shower of fragments in the closing months of 2015. Fragmenting comets such as 332P/Ikeya-Murakami have long been […]

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NASA’s Cassini Spacecraft Begins Final Year of Its Voyage

September 16, 2016

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Cassini Begins Final Year at Saturn

After more than 12 years of exploring Saturn, NASA’s Cassini Spacecraft has entered the final year of its voyage. The conclusion of the historic scientific odyssey is planned for September 2017, but not before the spacecraft completes a daring two-part endgame. Beginning on November 30, Cassini’s orbit will send the spacecraft just past the outer […]

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Chandra Detects X-Rays from Pluto

September 15, 2016

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Astronomers Shed New Light on Pluto

Using Chandra, a team of astronomers has detected X-rays from Pluto for the first time. This X-ray emission comes from the interaction between Pluto’s atmosphere and solar wind. New Chandra observations offer new insight into the space environment surrounding Pluto, the largest and best-known object in the solar system’s outermost regions. While NASA’s New Horizons […]

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Speckle Imaging Helps Provide the Highest-Resolution Images Available of TRAPPIST-1

September 14, 2016

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The TRAPPIST-1 System

Using the Gemini-South telescope and a speckle imaging camera, a team of astronomers have obtained the highest-resolution images available of TRAPPIST-1. When it comes to exoplanets, astronomers have realized that they only know the properties of the planets they discover as well as they know the properties of the stars being orbited. For a planet’s […]

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Mars Reconnaissance Orbiter Views a Streamlined Form in Lethe Vallis, Mars

September 13, 2016

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New Image of Lethe Vallis on Mars

This newly released image from NASA’s Mars Reconnaissance Orbiter shows a portion of Lethe Vallis, an outflow channel that also transported lava. This image was acquired at 15:16 local Mars time on May 6, 2016, by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA’s Mars Reconnaissance Orbiter. Another investigation of this area (Balme […]

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A Riddle for Our Time – Astronomers Examine Cosmic History

September 12, 2016

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The Dimensionless Age of the Universe: a Riddle for Our Time

In a newly published study, a team of astronomers call attention to a neglected riddle of the expansion of the universe: although cosmic acceleration might have started at any time, curiously it has happened in our own time. One of the most remarkable successes of astrophysics in the last century was its discovery that the […]

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Astronomers Detect Young Magnetar in Supernova Remnant, Likely the Slowest Pulsar Ever Discovered

September 8, 2016

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Chandra Discovers Young Magnetar

Astronomers may have detected the slowest spinning neutron star to date. The object is in the middle of the RCW 103 supernova remnant, which is about 10,700 light years from Earth. While other neutron stars spin multiple times a minute, this object only rotates once about every 6.5 hours. Using NASA’s Chandra X-ray Observatory and […]

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Astronomers Discover an Unusual Mix of Stars in Terzan 5

September 7, 2016

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Scientists Discover Rare Fossil Relic of Early Milky Way

An international team of astronomers has revealed the unusual mix of stars in the stellar cluster known as Terzan 5. The new results indicate that Terzan 5 is in fact one of the bulge’s primordial building blocks, most likely the relic of the very early days of the Milky Way. Using ESO’s Very Large Telescope […]

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Hubble Image of the Week – Glowing Gas and Dark Dust in the LMC

September 6, 2016

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New Hubble Image of the Large Magellanic Cloud

A newly released image from the Hubble Space Telescope shows a maelstrom of glowing gas and dark dust within one of the Milky Way’s satellite galaxies, the Large Magellanic Cloud (LMC). This stormy scene shows a stellar nursery known as N159, an HII region over 150 light-years across. N159 contains many hot young stars. These […]

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Juno Images Provide an Unprecedented View of Jupiter

September 2, 2016

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New Images of Jupiter’s North Pole

Juno’s recent flyby of Jupiter has provided astronomers with images unlike anything previously seen. NASA’s Juno spacecraft has sent back the first-ever images of Jupiter’s north pole, taken during the spacecraft’s first flyby of the planet with its instruments switched on. The images show storm systems and weather activity unlike anything previously seen on any […]

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Chandra Reveals Record-Breaking Galaxy Cluster

August 31, 2016

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Astronomers Discover Record-Breaking Galaxy Cluster

Using Chandra and several other telescopes, astronomers have found the most distant galaxy cluster to date. This cluster, called CL J1001+0220, lies about 11.1 billion light years from Earth and may have been caught right after birth, a brief, but important stage of cluster evolution never seen before. The remote galaxy cluster was found in […]

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Astrophysicists Show Milky Way Had a Blowout Bash 6 Million Years Ago

August 29, 2016

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New Study Shows Milky Way Had a Blowout Bash 6 Million Years Ago

New research from the Harvard-Smithsonian Center for Astrophysics shows that the center of the Milky Way was once a very active place. The center of the Milky Way galaxy is currently a quiet place where a supermassive black hole slumbers, only occasionally slurping small sips of hydrogen gas. But it wasn’t always this way. A […]

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A Billion or More Jupiter-Like Worlds Could Be Orbiting Stars in the Milky Way

August 26, 2016

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Scientists Compare Jupiter with Jupiter-like Planets

Using data from NASA’s Juno probe, astronomers hope to gain a better understanding of Jupiter and the the many Jupiter-like planets in our galaxy. Our galaxy is home to a bewildering variety of Jupiter-like worlds: hot ones, cold ones, giant versions of our own giant, pint-sized pretenders only half as big around. Astronomers say that […]

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