News About Asteroids And Comets
September 01, 2016
NASA Response to Recent Paper on NEOWISE Asteroid Size Results
Washington DC (SPX) May 26, 2016
A paper posted Sunday by Nathan Myhrvold to ArXiv.org and described in an article by reporter Ken Chang in the May 23 New York Times discusses interpretations of data on asteroids from NASA's NEOWISE mission. The paper was posted before undergoing the essential scientific peer-review process to catch and remove significant errors. Examination of the paper by members of the science community studying near-Earth objects has found several fundamental errors in Myhrvold's approach and analysis-mistake ... read more

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NASA prepares to launch first US asteroid sample return mission
NASA is preparing to launch its first mission to return a sample of an asteroid to Earth. The mission will help scientists investigate how planets formed and how life began, as well as improve our u ... more
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NASA Asteroid Redirect Mission Completes Design Milestone
Following a key program review, NASA approved the Asteroid Redirect Mission (ARM) to proceed to the next phase of design and development for the mission's robotic segment. ARM is a two-part mission ... more
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Bringing Home NASA's First Asteroid Samples
Studying comet and asteroid samples may seem like science fiction, but it's all in a day's work for NASA Johnson Space Center's Planetary Mission Research Scientist Keiko Nakamura-Messenger, Ph.D. ... more
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NASA to map Asteroid Bennu from the ground up
How do you study the topography of an asteroid millions of miles away? Map it with a robotic cartographer! NASA's Origins, Spectral Interpretation, Resource Identification, Security-Regolith E ... more
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The First Commercial Interplanetary Mining Mission
Deep Space Industries has announced its plans to fly the world's first commercial interplanetary mining mission. Prospector-1 will fly to and rendezvous with a near-Earth asteroid, and investigate t ... more
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What's Inside Ceres? New Findings from Gravity Data
In the tens of thousands of photos returned by NASA's Dawn spacecraft, the interior of Ceres isn't visible. But scientists have powerful data to study Ceres' inner structure: Dawn's own motion. ... more
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Farewell Philae: Earth severs link with silent comet probe
Earth bid a final farewell to robot lab Philae on Wednesday, severing communications after a year-long silence from the pioneering probe hurtling through space on a comet. ... more
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The Case of the Missing Ceres Craters
Ceres is covered in countless small, young craters, but none are larger than 175 miles (280 kilometers) in diameter. To scientists, this is a huge mystery, given that the dwarf planet must have been ... more
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Why are there so few large craters on dwarf planet Ceres?
Life in the asteroid belt isn't conducive to a smooth complexion. Ceres' surface is proof of that. But researchers say the dwarf planet's face isn't nearly as chiseled as they expected. ... more
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How comets are born
Detailed analysis of data collected by Rosetta show that comets are the ancient leftovers of early Solar System formation, and not younger fragments resulting from subsequent collisions between othe ... more
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SwRI-led study shows puzzling paucity of large craters on dwarf planet Ceres
A team of scientists led by Southwest Research Institute (SwRI) made a puzzling observation while studying the size and distribution of craters on the dwarf planet Ceres. Ceres is the largest ... more
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Dawn Maps Ceres Craters Where Ice Can Accumulate
Scientists with NASA's Dawn mission have identified permanently shadowed regions on the dwarf planet Ceres. Most of these areas likely have been cold enough to trap water ice for a billion years, su ... more
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Elite Team to Consider New Approaches to Asteroid Danger
A six-week-long research accelerator, championed by NASA's Office of the Chief Technologist and hosted at the SETI Institute, is engaging young researchers from around the world to take on one of th ... more
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Rosetta Finale Set for 30 September
Rosetta is set to complete its mission in a controlled descent to the surface of its comet on 30 September. The mission is coming to an end as a result of the spacecraft's ever-increasing distance f ... more
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Chaotic Orbit of Comet Halley Explained
A team of Dutch and Scottish researchers led by Simon Portegies Zwart (Leiden University) has found an explanation for the chaotic behavior of the orbit of Halley's Comet. The findings are accepted ... more
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Recent Hydrothermal Activity May Explain Ceres' Brightest Area
The brightest area on Ceres, located in the mysterious Occator Crater, has the highest concentration of carbonate minerals ever seen outside Earth, according to a new study from scientists on NASA's ... more
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Rosetta finale set for 30 September
Rosetta is set to complete its mission in a controlled descent to the surface of its comet on 30 September. The mission is coming to an end as a result of the spacecraft's ever-increasing distance f ... more
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Rosetta, Philae to reunite on comet for Sept 30 mission end
After nearly two years apart, Europe's Rosetta spacecraft will join stranded robot probe Philae on September 30 on the icy surface of a comet hurtling through space, their eternal resting place, mission control said Thursday. ... more
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Hundreds Of Events Worldwide Scheduled For Asteroid Day 2016
What began as a passion of a handful of individuals, a musician, filmmaker, technologist, scientist and astronaut, has become a global movement by thousands to increase awareness and education about ... more
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Asteroid Impacts a Possible Solution to "Faint Young Sun Paradox"
In the first billion years of Earth's history, the planet was bombarded by primordial asteroids, while a faint Sun provided much less heat. A Southwest Research Institute-led team posits that this t ... more
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Dawn clocks up 1000 orbits of Ceres
Dawn is continuing to record the extraordinary sights on dwarf planet Ceres. The experienced explorer is closer to the alien world than the International Space Station is to Earth. Dawn has co ... more
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Natural quasicrystals may be the result of collisions between objects in the asteroid belt
Naturally formed quasicrystals - crystal-like solids with supposedly impossible symmetries - are among the rarest structures on Earth. Only two have ever been found. A team led by Paul Asimow (MS '9 ... more
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Planetary Resources and Luxembourg partner to advance space resource industry
Planetary Resources has announced that it has signed a Memorandum of Understanding with the Government of the Grand Duchy of Luxembourg and the banking institution Societe Nationale de Credit et d'I ... more
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High-Tech Telescope for Dangerous Asteroids Detection Launched in Russia
The country's first wide-angle telescope AZT-33 BM will be able to see any space boulder the size of the Tunguska meteorite a month before its collision with Earth. At the Sayan Observatory of the I ... more
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