The Sky Tonight

August 26, 2015

Dawn Sends Sharper Scenes from Ceres
Pasadena CA (JPL) Aug 26, 2015
The closest-yet views of Ceres, delivered by NASA's Dawn spacecraft, show the small world's features in unprecedented detail, including Ceres' tall, conical mountain; crater formation features and narrow, braided fractures. "Dawn is performing flawlessly in this new orbit as it conducts its ambitious exploration. The spacecraft's view is now three times as sharp as in its previous mapping orbit, revealing exciting new details of this intriguing dwarf planet," said Marc Rayman, Dawn's chief enginee ... read more

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Gaia's first year of scientific observations Last Friday, 21 August, ESA's billion-star surveyor, Gaia, completed its first year of science observations in its main survey mode. After launch on 19 December 2013 and a six-month long in-or ... more		Research May Solve Lunar Fire Fountain Mystery Tiny beads of volcanic glass found on the lunar surface during the Apollo missions are a sign that fire fountain eruptions took place on the Moon's surface. Now, scientists from Brown University and ... more		Russia's moon landing plan hindered by financial distress Russia's moon landing project among other space programs will face further budget cuts and even risk of closure following the government's austerity measures, a senior official of Russia's space ind ... more
				Hinode, IRIS, and ATERUI cooperate on 70-year-old solar mystery Solar physicists have captured the first direct observational signatures of resonant absorption, thought to play an important role in solving the "coronal heating problem" which has defied explanati ... more		NASA SDO: Images of a mid-level solar flare The sun emitted a mid-level solar flare, peaking at 3:33 a.m EDT on Aug. 24, 2015. NASA's Solar Dynamics Observatory, which watches the sun constantly, captured an image of the event. Solar flares a ... more

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UA Cameras Give Sight to NASA's OSIRIS-REx Mission From over 2 million kilometers away, a powerful camera on NASA's Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer (OSIRIS-REx) spacecraft will "see" the tiny ast ... more		'Great American Eclipse' coming in two years Mark your calendars for Aug. 21, 2017. That's when all of North America will get a once-in-a-lifetime glimpse at a total solar eclipse. ... more		Taiwan running out of time for satellite communications, space chief tells AFP US lawmaker warns of military 'misunderstanding' risk with China Venezuela accuses US of waging 'undeclared war,' urges UN probe		The tumultuous heart of our Galaxy This new image of powerful remnants of dead stars and their mighty action on the surrounding gas from ESA's XMM-Newton X-ray observatory reveals some of the most intense processes taking place at th ... more
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A detector shines in search for dark matter Results of the XENON100 experiment are a bright spot in the search for dark matter. The team of international scientists involved in the project demonstrated the sensitivity of their detector and re ... more		Detecting dark matter might need a different approach Physicists suggest a new way to look for dark matter: They believe that dark matter particles annihilate into so-called dark radiation when they collide. If true, then we should be able to detect th ... more		Toxic homes a lasting legacy of Los Angeles fires 'Greatest con job ever': Trump trashes climate science at UN Turkey facing worst drought in over 50 years		NCAR's solar lab to celebrate 75th anniversary The High Altitude Observatory (HAO) of the National Center for Atmospheric Research (NCAR) is celebrating its 75th anniversary, a milestone in an ongoing quest to learn about the Sun's behavior and ... more
Programming and prejudice Software may appear to operate without bias because it strictly uses computer code to reach conclusions. That's why many companies use algorithms to help weed out job applicants when hiring for a ne ... more		A new model of gas giant planet formation Queen's University researcher Martin Duncan has co-authored a study that solves the mystery of how gas giants such as Jupiter and Saturn formed in the early solar system. In a paper published ... more		Antarctic detector firms up cosmic neutrino sighting Researchers using the IceCube Neutrino Observatory have sorted through the billions of subatomic particles that zip through its frozen cubic-kilometer-sized detector each year to gather powerful new ... more		Comet Impacts May Have Led to Life on Earth Comet impact on Earth are synonymous with great extinctions, but now research presented at the Goldschmidt geochemistry conference in Prague shows that early comet impact would have become a driving ... more

	Attosecond electron catapult Physicists from Ludwig-Maximilians-Universitat (LMU) in Munich studied the interaction of light with tiny glass particles. A team of physicists and chemists from Ludwig-Maximilians-Universitat Munic ... more		Mystery of exploding stars yields to astrophysicists A longstanding mystery about the tiny stars that let loose powerful explosions known as Type Ia supernovae might finally be solved. For decades, astronomers have debated whether one white dwarf star ... more

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