News About Asteroids And Comets
February 12, 2017
Earth Narrowly Dodges Three Large Asteroids
Moscow (Sputnik) Feb 01, 2017
A car-sized asteroid narrowly missed the Earth on Monday, January 30, six days after another asteroid the size of a house had a similar near-miss, and ten days after a third passed by that was about the size of a killer whale. All three asteroids were detected only shortly before they passed their closest point to Earth. Asteroid 2017 BH30 zipped past the Earth just 32,200 miles away at its closest approach. By comparison, the Moon is never closer than 225,000 miles from Earth. BH30 was estimated ... read more

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Gaia turns its eyes to asteroid hunting
Whilst best known for its surveys of the stars and mapping the Milky Way in three dimensions, ESA's Gaia has many more strings to its bow. Among them, its contribution to our understanding of the as ... more
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Cash crunch for anti-Armageddon asteroid mission
A mission to smash a spacecraft into an asteroid moon to alter its trajectory, a possible dry-run for an exercise in saving the Earth from Armageddon, has run into a cash crunch. ... more
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Rare meteorites challenge our understanding of the solar system
Researchers have discovered minerals from 43 meteorites that landed on Earth 470 million years ago. More than half of the mineral grains are from meteorites completely unknown or very rare in today' ... more
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Micro spacecraft investigates cometary water mystery
In September 2015, a team of astronomers from the National Astronomical Observatory of Japan, University of Michigan, Kyoto Sangyo University, Rikkyo University and the University of Tokyo successfu ... more
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Today's rare meteorites were once common
Four hundred and sixty-six million years ago, there was a giant collision in outer space. Something hit an asteroid and broke it apart, sending chunks of rock falling to Earth as meteorites since be ... more
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Observations of Ceres indicate that asteroids might be camouflaged
The appearance of small bodies in the outer solar system could be deceiving. Asteroids and dwarf planets may be camouflaged with an outer layer of material that actually comes from somewhere else. ... more
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Successful Deep Space Maneuver for NASA's OSIRIS-REx Spacecraft
New tracking data confirms that NASA's OSIRIS-REx spacecraft aced its first Deep Space Maneuver (DSM-1) on Dec. 28, 2016. The engine burn sets up the spacecraft for an Earth gravity assist this fall ... more
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How the darkness and the cold killed the dinosaurs
66 million years ago, the sudden extinction of the dinosaurs started the ascent of the mammals, ultimately resulting in humankind's reign on Earth. Climate scientists now reconstructed how tiny drop ... more
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NASA's Newly Announced Mission Could Solve the Mystery of Water on Asteroid Psyche
Discovered in 1852 by Italian astronomer Annibale de Gasparis, Psyche is one of the ten most-massive asteroids in the asteroid belt. Although Psyche is thought to be a world made of metal, scientist ... more
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Asteroid buzzes Earth
On Monday morning Earth barely escaped being struck by a newly-discovered asteroid dubbed 2017 AG13.The asteroid, belonging to the Aten group of asteroids between 11 and 34 meters in diameter, was s ... more
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Asteroid sleuths go back to the future
Careful sleuthing through decade-old images has enabled ESA's asteroid team to decide that a newly discovered space rock poses little threat of hitting Earth any time soon. Spotting a previous ... more
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White House releases strategy in case of 'killer asteroid'
The White House has published a 25-page report on 'National Near-Earth Object Preparedness Strategy,' detailing preparations in the event that a celestial object such as a 'killer asteroid' is found ... more
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Psyche to offer unique look at early terrestrial planet formation
Arizona State University's Psyche Mission, a journey to a metal asteroid, has been selected for flight under NASA's Discovery Program, a series of lower-cost, highly focused robotic space missions t ... more
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ASU Spectrometer to Fly on New Nasa Mission to Distant 'Trojan' Asteroids
The Lucy mission to Jupiter's Trojan asteroids has been chosen by NASA for flight under the agency's Discovery Program. Lucy will carry an ASU-designed and -developed thermal emission spectrometer, ... more
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SwRI to lead NASA's Lucy mission to Jupiter's Trojans
NASA has selected Southwest Research Institute (SwRI) to lead Lucy, a landmark Discovery mission to perform the first reconnaissance of the Trojans, a population of primitive asteroids orbiting in t ... more
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NASA Selects Two Missions to Explore the Early Solar System
NASA has selected two missions that have the potential to open new windows on one of the earliest eras in the history of our solar system - a time less than 10 million years after the birth of our s ... more
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Quadrantid meteor shower to peak this week in North America
A fireworks-type display of Quadrantid meteors will likely peak in North America on Tuesday or Wednesday. ... more
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NEOWISE mission spies one comet, maybe two
NASA's NEOWISE mission has recently discovered some celestial objects traveling through our neighborhood, including one on the blurry line between asteroid and comet. Another--definitely a comet--mi ... more
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PANIC Lander to Revolutionize Asteroid Research
A US-German team of researchers has proposed to develop a micro-scale low-cost surface lander for the in situ characterization of an asteroid. The tiny spacecraft, called the Pico Autonomous Near-Ea ... more
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Ceres Offers Insight Into Prospects For Life in Early Solar System
Ceres, the largest body in the main asteroid belt, is pocketed with cold, dark craters, several of which are layered in ice, raising the prospects that this frigid dwarf planet once had perhaps an o ... more
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The case of the missing diamonds
It all began innocently enough. Tyrone Daulton, a physicist with the Institute for Materials Science and Engineering at Washington University in St. Louis, was studying stardust, tiny specks of heat ... more
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Studies refute hypothesis on what caused abrupt climate change thousands of years ago
Two new studies in the Journal of Quaternary Science refute the hypothesis that one or more comets/bolides struck North America approximately 12,900 years ago triggering rapid climate change and the ... more
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Rosetta's last words: science descending to a comet
On 30 September 2016, at 11:19:37 UTC in ESA's mission control, Rosetta's signal flat-lined, confirming that the spacecraft had completed its incredible mission on the surface of Comet 67P/Churyumov ... more
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Ceres: Water ice in eternal polar night
The American Dawn space probe has been orbiting the asteroid Ceres between Mars and Jupiter since March 2015. Thanks to the two identical onboard cameras from the Max Planck Institute for Solar Syst ... more
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