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This is an artist's rendition of the galaxies Akira (right) and Tetsuo (left) in action. Akira's gravity pulls Tetsuo's gas into its central supermassive black hole, fueling winds that have the power to heat Akira's gas. Because of the action of the black hole winds, Tetsuo's donated gas is rendered inert, preventing a new cycle of star formation in Akira.
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NASA's OSIRIS-REx mission will have a map for that

The mapping of the near-Earth asteroid Bennu is one of the science goals of NASA's OSIRIS-REx mission, and an integral part of spacecraft operations. The spacecraft will spend a year surveying Bennu before collecting a sample that will be returned to Earth for analysis.REx spacecraft is scheduled to launch for terra incognita: the unknown surface of the near-Earth asteroid Bennu. Like expeditions of old, OSIRIS-REx's mission includes mapping the exotic terrain it explores.

Astronomers confirm faintest early-universe galaxy ever seen

Composite image of the galaxy cluster from three different filters on the Hubble Space Telescope. The wave charts (insets at left) show spectra of the multiply imaged systems. The fact that they share peaks at the same wavelength shows that they belong to the same source. At bottom right, the Keck I and Keck II Telescopes at Hawaii's the W. M. Keck Observatory.An international team of scientists, including two professors and three graduate students from UCLA, has detected and confirmed the faintest early-universe galaxy ever. Using the W. M. Keck Observatory on...

NASA's Van Allen Probes reveal long-term behavior of Earth's ring current

New findings based on a year's worth of observations from NASA's Van Allen Probes have revealed that the ring current - an electrical current carried by energetic ions that encircles...

First evidence of icy comets orbiting a sun-like star

This is an illustration of the dust ring surrounding HD 181327.An international team of astronomers have found evidence of ice and comets orbiting a nearby sun-like star, which could give a glimpse into how our own solar system developed.

New data on the variability of the Earth's reflectance over the last 16 years

Composition of the earthshine, the light reflected from the Earth to the night-time face of the Moon, and the figure showing the monthly mean apparent albedo anomalies from December 1998 through December 2014. Anomalies were calculated over the mean of the full period, positive anomalies are shown in red and negative in blue. Averaged standard deviation (error) of the monthly data is also indicated in the lower right corner for simplicity. Only months with at least 5 nights of observations are shown. From November 2005 to August 2006 several months of earthshine data are missing due to the replacement of the dome of the solar telescope, while the new automated telescope under a separate dome was not yet operational.The Earth's albedo, or reflectance, is a fundamental atmospheric parameter having deep implications for temperature and climate change. For that reason, experiments have been performed to monitor it over the...

Allan Sandage's last paper unravels 100-year-old astronomical mystery

Color-magnitude diagrams for all bright stars within 1,000 light-years of the sun as determined by Mt. Wilson astronomers in 1935. (Left) Diagram without the subgiants, in which it is difficult to connect the two clear populations. (Right) Diagram with the subgiants discovered by Walter Adams et al. The subgiants form a connective tissue between the sequences that inspired Allan Sandage and his colleagues to advance the theory of stellar evolution by exploring the physical properties of these stars relative to the other sequences.Carnegie's Allan Sandage, who died in 2012, was a tremendously influential figure in the field of astronomy. His final paper, published posthumously, focuses on unraveling a surprising historical mystery related...

Hubble spies a spiral snowflake

The striking face-on spiral galaxy NGC 6814, whose luminous nucleus and spectacular sweeping arms, rippled with an intricate pattern of dark dust, are captured in this NASA/ESA Hubble Space Telescope image.Together with irregular galaxies, spiral galaxies make up approximately 60 percent of the galaxies in the local universe. However, despite their prevalence, each spiral galaxy is unique -- like snowflakes,...

Hubble catches views of a jet rotating with Comet 252P/LINEAR

Comet 252P/LINEAR is shown as it passed by Earth.This sequence of images taken by NASA's Hubble Space Telescope shows Comet 252P/LINEAR as it passed by Earth. The visit was one of the closest encounters between a comet and...

New test by deepest galaxy map finds Einstein's theory stands true

A 3-D map of the universe spanning 12 to 14.5 billion light years.An international team led by Japanese researchers has made a 3D map of 3000 galaxies 13 billion light years from Earth, and found that Einstein's general theory of relativity is...

Astronomers find giant planet around very young star

Astronomers used the Harlan J. Smith Telescope at the University of Texas at Austin's McDonald Observatory near Fort Davis, Texas, to search for a planet around star CI Tau.In contradiction to the long-standing idea that larger planets take longer to form, U.S. astronomers today announced the discovery of a giant planet in close orbit around a star so...

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NASA scientist suggests possible link between primordial black holes and dark matter

This image from NASA's Spitzer Space Telescope shows an infrared view of a sky area in the constellation Ursa Major.Dark matter is a mysterious substance composing most of the material universe, now widely thought to be some form of massive exotic particle. An intriguing alternative view is that dark...

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Hubble takes Mars portrait near close approach

This is a Hubble Space Telescope photo of Mars taken when the planet was 50 million miles from Earth on May 12, 2016.Bright, frosty polar caps, and clouds above a vivid, rust-colored landscape reveal Mars as a dynamic seasonal planet in this NASA Hubble Space Telescope view taken on May 12, 2016,...

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Ancient tsunami evidence on Mars reveals life potential

The geologic shape of what were once shorelines through Mars' northern plains convinces scientists that two large meteorites - hitting the planet millions of years apart - triggered a pair...

Stellar mystery deepens

Using recent advancements in Australian telescope technology, a Monash University-led research team has made an unexpected discovery that a large group of stars are dying prematurely, challenging our accepted view...

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A beautiful instance of stellar ornamentation

In this image from ESO's Very Large Telescope (VLT), light from blazing blue stars energises the gas left over from the stars' recent formation. The result is a strikingly colorful emission nebula, called LHA 120-N55, in which the stars are adorned with a mantle of glowing gas. Astronomers study these beautiful displays to learn about the conditions in places where new stars develop.In this image from ESO's Very Large Telescope (VLT), light from blazing blue stars energises the gas left over from the stars' recent formation. The result is a strikingly colourful...

Europa's ocean may have an Earthlike chemical balance

The ocean of Jupiter's moon Europa could have the necessary balance of chemical energy for life, even if the moon lacks volcanic hydrothermal activity, finds a new study.

Hunting for hidden life on worlds orbiting old, red stars

This graphic shows where a planet can be habitable and warm around our sun, as it ages over billions of years.All throughout the universe, there are stars in varying phases and ages. The oldest detected Kepler planets (exoplanets found using NASA's Kepler telescope) are about 11 billion years old, and...

UTA scientists use advanced astronomical software to date 2,500 year-old lyric poem

This is a color composite image of the Pleiades from the Digitized Sky Survey.Physicists and astronomers from the University of Texas at Arlington have used advanced astronomical software to accurately date lyric poet Sappho's "Midnight Poem," which describes the night sky over Greece...

Small blue galaxy could shed new light on Big Bang, IU astronomers say

This is John J. Salzer.A faint blue galaxy about 30 million light-years from Earth and located in the constellation Leo Minor could shed new light on conditions at the birth of the universe.

NASA directly observes fundamental process of nature for 1st time

The four Magnetospheric Multiscale, or MMS, spacecraft (shown here in an artist's concept) have now made more than 4,000 trips through the boundaries of Earth's magnetic field, gathering observations of our dynamic space environment.Like sending sensors up into a hurricane, NASA has flown four spacecraft through an invisible maelstrom in space, called magnetic reconnection. Magnetic reconnection is one of the prime drivers of...

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