Science

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Mystery Solved: Bright Areas on Ceres Come From Salty Water Below

Data from NASA's recent Dawn mission answers two long-unresolved questions: Is there liquid inside Ceres, and how long ago was the dwarf planet geologically active?

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Images of Occator Crater, seen in false-color, were pieced together to create this animated view.

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International Physicists Join Forces in Hunt for Sterile Neutrinos

The MINOS+ and Daya Bay neutrino experiments combine results to produce the most stringent test yet for the existence of sterile neutrinos

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These four Daya Bay detectors are submerged in a pool of ultrapure water that helps to shield against naturally occurring radiation.

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Semiconductor Manufacturing Techniques Employed for New Gamma-ray Detector

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Postbaccalaureate researcher Isabella Brewer is a member of the team creating a next-generation gamma-ray detector called AstroPix.

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SpARCS1049: Black Hole Fails to Do Its Job

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View Wavelengths: Optical/IR

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Cluster’s 20 years of studying Earth’s magnetosphere

Despite a nominal lifetime of two years, ESA’s Cluster is now entering its third decade in space. This unique four-spacecraft mission has been revealing the secrets of Earth’s magnetic environment since 2000 and, with 20 years of observations under its belt, is still enabling new discoveries as it explores our planet’s relationship with the Sun.

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Cluster.

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NASA Sounding Rocket Finds Helium Structures in Sun's Atmosphere

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A composite image of the Sun showing the hydrogen (left) and helium (center and right) in the low corona. The helium at depletion near the equatorial regions is evident.

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Satellites provide crucial data on crops during COVID-19

Millions of people around the world face hunger every day, and unfortunately, the COVID-19 pandemic is expected to make the issue of food security even worse. Satellites are helping to alleviate the situation by providing crucial information to monitor crop growth and harvesting from space.

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Satellites provide data on crops

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Hubble Makes the First Observation of a Total Lunar Eclipse By a Space Telescope

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Hubble Observes the Total Lunar Eclipse (Artist’s Impression)

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NASA’s MAVEN Observes Martian Night Sky Pulsing in Ultraviolet Light

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This is an image of the ultraviolet “nightglow” in the Martian atmosphere. Green and white false colors represent the intensity of ultraviolet light, with white being the brightest. The nightglow was measured at about 70 kilometers (approximately 40 miles) altitude by the Imaging UltraViolet Spectrograph instrument on NASA’s MAVEN spacecraft. A simulated view of the Mars globe is added digitally for context. The image shows an intense brightening in Mars’ nightside atmosphere. The brightenings occur regularly after sunset on Martian evenings during fall and winter seasons, and fade by midnight. The brightening is caused by increased downwards winds which enhance the chemical reaction creating nitric oxide which causes the glow.

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A Closer Look at Water-Splitting’s Solar Fuel Potential

Scientists at Berkeley Lab and the Joint Center for Artificial Photosynthesis zero in on bismuth vanadate’s role in renewable energy at the nanoscale

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Francesca Toma (right) and Johanna Eichhorn shown at the Joint Center for Artificial Photosynthesis (JCAP) laboratory at Berkeley Lab on July 2, 2018. They developed a special technique using an atomic force microscope at JCAP to capture images of thin-film bismuth vanadate at the nanoscale to understand how a material’s properties can affect its performance in an artificial photosynthesis device.