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Review of the Meteoritics World News
2021-03-25 After its discovery in 2004, asteroid 99942 Apophis had been identified as one of the most hazardous asteroids that could impact Earth. But that impact assessment changed as astronomers tracked Apophis and its orbit became better determined.Now, the results from a new radar observation campaign combined with precise orbit analysis ...
2021-03-11 The largest asteroid predicted to pass by our planet in 2021 will be at its closest on March 21, providing astronomers a rare opportunity to get a good look at a rocky relic that formed at the dawn of our solar system.Called 2001 FO32, the near-Earth asteroid will make its ...
2020-11-12 Earth has captured a tiny object from its orbit around the Sun and will keep it as a temporary satellite for a few months before it escapes back to a solar orbit. But the object is likely not an asteroid; it's probably the Centaur upper stage rocket booster that helped ...
2020-09-22 A small near-Earth asteroid (or NEA) will briefly visit Earth's neighborhood on Thursday, Sept. 24, zooming past at a distance of about 13,000 miles (22,000 kilometers) above our planet's surface. The asteroid will make its close approach below the ring of geostationary satellites orbiting about 22,000 miles (36,000 kilometers) away ...
2020-08-18 Near Earth Asteroids, or NEAs, pass by our home planet all the time. But an SUV-size asteroid set the record this past weekend for coming closer to Earth than any other known NEA: It passed 1,830 miles (2,950 kilometers) above the southern Indian Ocean on Sunday, Aug. 16 at 12:08 ...
2020-04-28 A large near-Earth asteroid will safely pass by our planet on Wednesday morning, providing astronomers with an exceptional opportunity to study the 2-kilometer-wide (1.5-mile-wide) object in great detail.
2020-04-28 A relatively small asteroid, about 4 to 8 meters in diameter, will fly safely past Earth just before 3pm today, Apr. 28 (Eastern U.S. time). NASA is tracking the object, but orbit calculations ruled out any chance that the near-Earth object could pose a threat to our planet.
2020-02-27 A small object, presumed to be a tiny asteroid, has been discovered in a distant orbit about the Earth, a highly unusual circumstance, since asteroids normally orbit the Sun. The new “mini-moon” has been given the asteroid designation 2020 CD3, but in view of its strange orbit, there is a ...
2019-09-12 A newly discovered comet has excited the astronomical community this week because it appears to have originated from outside the solar system. The object - designated C/2019 Q4 (Borisov) - was discovered on Aug. 30, 2019, by Gennady Borisov at the MARGO observatory in Nauchnij, Crimea. The official confirmation that ...
2019-08-15 The Center for Near-Earth Object Studies (CNEOS) has determined with new analysis by its Sentry impact monitoring system that a small asteroid whose uncertain position was of concern will pass by Earth at a very safe distance in September. The new analysis of the asteroid, called 2006 QV89, was made ...
2020-12-02 The object, discovered in September by astronomers searching for near-Earth asteroids, garnered interest in the planetary science community due to its size and unusual orbit.
2020-11-24 NASA's Perseverance rover carries a device to convert Martian air into oxygen that, if produced on a larger scale, could be used not just for breathing, but also for fuel.
2020-11-10 A report, released Tuesday, concludes that the agency is well positioned for its ambitious plan to bring samples back from the Red Planet for further study on Earth.
2020-10-29 New research on nine craters of Saturn's largest moon provides more details about how weathering affects the evolution of the surface - and what lies beneath.
2020-10-16 Now that the heat probe is just below the Martian surface, InSight's arm will scoop some additional soil on top to help it keep digging so it can take Mars' temperature.
2020-10-13 Made of a pair of two-wheeled vehicles, NASA's DuAxel is designed to descend crater sides and near-vertical cliffs on the Moon, Mars, and beyond.
2020-10-08 The agency's newest rover will use the first ground-penetrating radar instrument on the Martian surface to help search for signs of past microbial life.
2020-10-01 It's the first time machine learning has been used to find previously unknown craters on the Red Planet.
2020-09-22 Roughly 15 to 30 feet wide, the object will make its closest approach on Sept. 24.
2020-09-21 An atmospheric light show previously relegated to planets and Jupiter moons is found on comet using data from ESA's Rosetta spacecraft.
2021-07-02 On a summer morning at about eight o’clock, a large stone meteorite entered the airspace above Allegan, Michigan landing on a spot of ground known as Thomas Hill. It was Monday July 10, 1899. The Allegan meteorite is classified as an H5 chondrite, one of the most common types of meteorites to fall on this …
The post The Allegan, Michigan Meteorite: A Confused Agglomerate first appeared on Meteorite Times Magazine.
2021-07-02 Over the years I have written about meteorites that I have sent off for classification. Repeatedly the question “How can I get a meteorite classified?” has been asked. At gem shows there are boxes of meteorites for sale and unfortunately rocks being called meteorites but which are not. Meteorites with no pedigree can also be …
The post The Classification Process first appeared on Meteorite Times Magazine.
2021-07-02 New Raymer is a metamorphic type 4 so we wouldn’t expect to see dark matrix and sharply defined chondrules. Still, there are opaque areas that beg to be investigated.
The post New Raymer LL4 Opaques first appeared on Meteorite Times Magazine.
2021-07-02 The Paris, Los Angeles and New York meteorites share a common history of being meteorites that were found outside those large famous metropolitan cities that they were named after. The Los Angeles meteorite was found around 1980 by Bob Verish in California’s Mojave Desert when Bob picked up a couple of rocks that caught his …
The post Paris Meteorite first appeared on Meteorite Times Magazine.
2021-07-01 Our Meteorite of the Month is kindly provided by Tucson Meteorites who hosts The Meteorite Picture of the Day.
The post Richmond 2.8 Gram Crusted Fragment first appeared on Meteorite Times Magazine.
2021-05-02 Two hundred and thirteen years ago this May, the Stannern achondrite fell from the sky, landing in what is now the Czech Republic. The shower of stones was reported to have lasted eight minutes which I find astounding for many reasons. Estimates of upwards of 300 individual stones fell with only 66 documented stones recovered, …
The post Sorry it took me 213 years to show you my Stannern Meteorite Individual first appeared on Meteorite Times Magazine.
2021-05-02 It has been a while since I wrote an article focused on my favorite place; Meteor Crater. Over the last fifty years, I have added to my collection many specimens of meteorites, rocks, and ephemera from the crater. But, one of the items that I had just a single representative specimen of was the graphite …
The post Canyon Diablo Graphite Nodules first appeared on Meteorite Times Magazine.
2021-05-02 The silicates in Aba Panu have been strongly shocked so it is not a particularly pretty meteorite under the microscope in transmitted light, in spite of its being an L3. The Meteoritical Bulletin database says that metal and sulfide occurs as: fined grained spheres in the matrix; armoring chondrules; and, occasional lumps. …
The post Aba Panu L3 first appeared on Meteorite Times Magazine.
2021-05-02 About a dozen years ago, I started collecting “Meteorwrongs” or “Pseudometeorites” for a few reasons. First and most importantly, they fascinated me. How could some Pseudometeorites look so much like meteorites? Yes, the vast majority of Meteorwrongs don’t resemble a meteorite, but there are a few that may fool even seasoned meteorite enthusiasts and scientists …
The post Meteorwrongs – Pseudometeorites first appeared on Meteorite Times Magazine.
2021-05-01 Our Meteorite of the Month is kindly provided by Tucson Meteorites who hosts The Meteorite Picture of the Day.
The post Brenham 170.5 gram full slice first appeared on Meteorite Times Magazine.
:
meteors ;
asteroids ;
comets ;
space-junk .
2021-07-29 A pair of astronomers have proposed two new strategies for preventing possible asteroid impacts.
2021-07-30 Mysterious spots that scientists thought were subsurface lakes beneath the Martian south pole may instead be ancient clay deposits.
The post "Liquid Water" Below Martian Surface Might Be Clay appeared first on Sky & Telescope.
2021-07-23 Asteroids of different sizes crashing on Earth originated from different parts of the main asteroid belt, researchers say; the finding has implications for how often such collisions happen.
The post How Often Do Chicxulub-level Asteroids Hit Earth? appeared first on Sky & Telescope.
2021-07-22 Perseverance will soon collect the first of many samples from the Martian surface in a quest to answer whether the planet once hosted life.
The post NASA's Perseverance to Collect First Sample from Mars appeared first on Sky & Telescope.
2021-07-30 If you were planning an ice-fishing trip to the Martian south pole and its sub-surface lakes observed by radar in 2018, don’t pack your parka or ice auger just yet. In a research letter published earlier this month in Geophysical Research Letters by I.B. Smith et al., it seems that ...
2021-07-29 In our exploration of Mars, we’ve seen some strange but naturally occurring shapes. Polygons – a shape with at least three straight sides and angles, typically with five or more – have been seen in several different Martian landscapes, and scientists say these shapes are of great interest because they ...
2021-07-30 New moon comes on August 8, leaving skies dark for the Perseids in 2021. EarthSky's meteor shower guide features dates and times. It can help you plan.
The post EarthSky’s 2021 meteor shower guide first appeared on EarthSky.
2021-06-18 China’s Zhurong Mars rover snaps a selfie and gets a bird’s-eye-view pic from above, and asteroid hunters of all kinds look out for dangerous rocks.
2021-06-14 This November, NASA will launch the world’s first mission to test a method of deflecting an asteroid.
2021-06-14 What two famous 1998 asteroid movies got right and wrong.
2021-05-28 From solar storms to underwater volcanoes and asteroid close calls, catch up on what’s scary and beautiful this week in space.
2021-05-25 See every city-killer-size asteroid that has passed or will pass closer to Earth than the Moon.
2021-05-14 A spacecraft leaves one asteroid as planetary defense experts turn to others.
2021-05-07 Don’t leave it up to cosmic fate; take action right now to defend our planet from dangerous impacts.
2021-04-30 Remembering a space pioneer and seeing a rover from a whole new perspective.
2021-04-27 Asteroids and comets that come close to Earth can pose a very real threat to our planet, but impacts from these objects aren’t inevitable. With proper planning we can prevent this natural disaster from happening.
2021-04-27 Some of the most significant impacts that humans (and dinosaurs) have witnessed.
2021-07-31 Pasadena CA (JPL) Jul 30, 2021
Where there's water, there's life. That's the case on Earth, at least, and also why scientists remain tantalized by any evidence suggesting there's liquid water on cold, dry Mars. The Red Planet is a difficult place to look for liquid water: While water ice is ...
2021-05-11 OSIRIS-REx spacecraft heads for Earth with asteroid sample(10 May 2021 - NASA)
2021-01-11 In 2017, astronomers discovered an object passing through our solar system which most concluded was the first interstellar asteroid. Jeff Foust reviews a book by a Harvard astronomer who tries to make the case that the object is instead an alien artifact.
2020-11-30 In April 2029, the asteroid Apophis will pass close to the Earth, posing no threat of impact but instead offering an opportunity for scientists. Jeff Foust reports on discussions at a recent workshop on the potential missions that could be flown during the flyby and the rationales for them.
2020-11-23 Five years ago this week, President Obama signed into law a bill that granted companies rights to space resources they extracted. Jeff Foust describes how that effort, intended to enable asteroid mining, has evolved to support the use of lunar resources as part of Artemis and related initiatives.
2020-10-19 On Tuesday, NASA's OSIRIS-REx spacecraft will attempt to touch down on the surface of asteroid Bennu and collect samples for return to Earth. Jeff Foust reports on how this effort, already technically challenging, has turned out to be even more difficult than originally expected.
2020-07-27 The passing Comet NEOWISE, on display in the night sky in recent weeks, can seem like little more than a brief diversion from our problems on Earth today. Hariharan Karthikeyan argues it's a reminder to look up and think big.
2020-04-27 Mars sample return is a long-standing goal of many planetary scientists, but difficult and expensive to achieve. Jeff Foust reports on how NASA and ESA are firming up plans to do so over the next decade, despite many uncertainties.
2021-07-21 NASA is making final preparations for its Perseverance Mars rover to collect its first-ever sample of Martian rock, which future planned missions will transport to Earth. The six-wheeled geologist is searching for a scientifically interesting target in a part of Jezero Crater called the "Cratered Floor Fractured Rough."
2021-07-12 Scientists have discovered a new type of star dust whose composition indicates that it formed during a rare form of nucleosynthesis (the process through which new atomic nuclei are created) and could shed new light on the history of water on Earth.
2021-04-29 Scientists have recreated the reaction by which carbon isotopes made their way into different organic compounds, challenging the notion that organic compounds, such as amino acids, were formed by isotopically enriched substrates. Their discovery suggests that the building blocks of life in meteorites were derived from widely available substrates in ...
2021-04-22 As NASA's Perseverance rover begins its search for ancient life on the surface of Mars, a new study suggests that the Martian subsurface might be a good place to look for possible present-day life on the Red Planet.
2021-07-28 The impactor believed to have wiped out the dinosaurs and other life forms on Earth some 66 million years ago likely came from the outer half of the main asteroid belt, a region previously thought to produce few impactors. Researchers from Southwest Research Institute have shown that the processes that ...
2021-07-27 As billionaires battle it out in a space race that only a handful of the world's richest persons can play, a highly inclusive international project is looking in the other direction–what's flying towards Earth–and all are welcome.
2021-07-29 Three studies published in the past month have cast doubt on the premise of subsurface lakes below the Martian south pole.
2021-07-28 The impactor believed to have wiped out the dinosaurs and other life forms on Earth some 66 million years ago likely came from the outer half of the main asteroid belt, a region previously thought to produce few impactors. Researchers from Southwest Research Institute have shown that the processes that ...
2021-07-23 A team at the Natural History Museum (NHM), London is paving the way for future rovers to search for meteorites on Mars. The scientists are using the NHM's extensive meteorite collection to test the spectral instruments destined for the ExoMars rover Rosalind Franklin, and develop tools to identify meteorites on ...
2021-07-23 A dust storm that engulfed Mars in 2018 destroyed a vortex of cold air around the planet's south pole and brought an early spring to the hemisphere. By contrast, the storm caused only minor distortions to the polar vortex in the northern hemisphere and no dramatic seasonal changes. Dr. Paul ...
2021-07-22 Based on the analysis of marsquakes recorded by NASA's InSight mission, the structure of Mars's crust has now been determined in absolute numbers for the first time. Beneath the InSight landing site, the crust is either approximately 20 or 39 kilometers thick. That is the result of an international research ...
2021-07-22 The Perseverance Mars rover is preparing to collect its first rock sample from the site of an ancient lake bed, as its mission to search for signs of past life begins in earnest, NASA said Wednesday.
2021-07-21 NASA is making final preparations for its Perseverance Mars rover to collect its first-ever sample of Martian rock, which future planned missions will transport to Earth. The six-wheeled geologist is searching for a scientifically interesting target in a part of Jezero Crater called the "Cratered Floor Fractured Rough."
2021-07-20 The ESA-Roscosmos Trace Gas Orbiter has set new upper limits on how much methane, ethane, ethylene and phosphine is in the martian atmosphere—four so-called 'biomarker' gases that are potential signs of life.
2021-07-19 A 4.6-billion-year-old meteorite found in the laying in the imprint of a horseshoe is likely a remnant of cosmic debris left over from the birth of the solar system and could answer questions about how life began on Earth.
2021-07-13 Images snapped on July 5 by NASA's Ingenuity Mars Helicopter on its ambitious ninth flight have offered scientists and engineers working with the agency's Perseverance Mars rover an unprecedented opportunity to scout out the road ahead. Ingenuity provided new insight into where different rock layers begin and end, each layer ...
2021-07-26 Norwegian experts say an unusually large meteor was visible over large parts of southern Scandinavia and illuminated southeast Norway with a powerful flash of light for a few seconds as many observers were reported to also hear a roaring sound afterwards.
2021-07-22 Based on the analysis of marsquakes recorded by NASA's InSight mission, the structure of Mars's crust has now been determined in absolute numbers for the first time. Beneath the InSight landing site, the crust is either approximately 20 or 39 kilometers thick. That is the result of an international research ...
2021-07-30 Three studies published in the past month have cast doubt on the premise of subsurface lakes below the Martian south pole. Where there’s water, there’s...
The post Doubt Cast on Premise of Subsurface Liquid Water Lakes on Mars – May Just Be Frozen Clay appeared first on SciTechDaily.
...
2021-07-29 For years scientists have been debating what might lay under the Martian planet's south polar cap after bright radar reflections were discovered and initially attributed to water. But now, a new study puts that theory to rest and demonstrates for the first time that another material is most likely the ...
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2021/07/31 212 Meteoriti.LV
ŠODIENAS AKTUĀLAIS METEORĪTIKAS KALENDĀRS
Mēness fāze
31. jūlijā vēsturē zināmi nokrituši 3 meteorīti:
Šobrīd debesīs novērojamas 5 aktīvās meteoru plūsmas:
★★☆☆ Piscis Austrinids(Maksimums: Jul 28) ;★★☆☆ South. δ-Aquariids(Maksimums: Jul 30) ;★★☆☆ α-Capricornids(Maksimums: Jul 30) ;★★★★ Perseids(Maksimums: Aug 13) ;★☆☆☆ Antihelion Source(Maksimums: marts-apr. un vēls maijs-jūn.) .
Mazliet vēstures Kopš meteorītikas zinātnes dzimšanas pagājuši 227 gadi.
Meteoriti.LV vietne tiks pakāpeniski papildināta ar plašu pamatinformāciju par meteorītiku un ar to saistitām astronomijas nozarēm.
Uzzināsiet, vai "meteorīti dabā sastopami retāk par dimantiem", cik tie ir veci un kāda ir to izcelsme.
Atradīsiet atbildes uz jautājumiem:
Vai meteorīti ir bīstami?
Kādi meteorīti atrodami Latvijā un kur tos var apskatīt? Vai Latvijā ir vērts meklēt meteorītus?
Ko meteorītu izpēte pastāsta mums par Zemes un Saules sistēmas izcelšanos?
Ceram, ka tas radīs vēlmi arī jums pašiem novērot Zemes kosmiskos viesus - meteorus, un, varbūt, pat kļūt par īstiem meteorītu medniekiem!
Veiksmīgu novērošanu!
Meteorītu muzeja JAUNUMI, AKTUALITĀTES un ZIŅAS
Preses relīze 2021-07-02 Pilsoņu zinātne "Vai arī tavā pagalmā ir meteorīts? " 2021-05-24 Preses relīze 2021-05-24 2021-05-20 2021-04-30 2021-02-15 2021-02-13 Aicinām skolēnus un studentus pieteikties
Asteroīdu nodibinājuma rīkotajam tiešsaistes pasākumam ar astronautu
Dumitru Dorinu Prunarju :
Tiešsaistes pasākums notiks angļu val. 2021. gada 18. februārī pl. 17:00-18:00
iDialogue platformā (nepieciešama iepriekšēja reģistrācija) Lai pievienotos Meteorītu muzeja
iDialogue klasei , lietojiet kodu: RdpqpY
2021-02-13 (Pēdējās izmaiņas: 2021-02-16 ) 2021-02-08 Meteorītu muzeja JAUNUMU, AKTUALITĀŠU un ZIŅU sadaļai radīts jauns grafisks vizuālā stila veidols.
2021-02-05 2021-01-03 2020-12-30 2020-12-27 2020-12-23 (Pēdējās izmaiņas: 2021-02-08 ) 2020-12-18 Atbilstoši valstī izsludinātajam Covid-19 ārkārtas stāvoklim no 21. decembra visu muzeju iekštelpas uz laiku tiks slēgtas, apmeklētāji netiks pieņemti! Atvainojiet, attiecīgi arī visi š.g. nogalē izsludinātie Meteorītu muzeja pasākumi tiek atcelti! Lūdzu, sekojiet aktuālai informācijai!
2020-11-28 2020-11-20 2020-11-08 Ievērojiet! Šobrīd, atbilstoši Covid-19 stāvoklim valstī, Meteorītu muzeja apmeklējums iespējams tikai ar iepriekšēju e-pierakstu tikai individuāli vai saistītām personām, vienas mājsaimniecības cilvēkiem.
2020-11-08 2020-11-07 (Pēdējās izmaiņas: 2021-02-08 ) Latvijas televīzijas LTV1 raidījums "Aculiecinieks" (2020-11-07) :
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Judīte Čunka, Uģis Kronbergs, Uvis Burjāns "Pa Līksnas meteorīta pēdām" Video pieejams platformās: |
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Judīte Čunka "Pa Līksnas meteorīta pēdām. Kas zināms par 200 gadu seno notikumu?" "Pirms 200 gadiem par to runāja visi – zemnieki krogos, aristokrāti salonos un zinātnieki. No debesīm krita akmeņi. Pasaulē uzzināja par Līksnas meteorītu..."
2020-10-06 2020-09-06 2020-07-05 Meteorītu muzejs Rīgā aicina uz īpašo pasākumu š.g. 12. jūlijā:
(vietu skaits ierobežots!) Nepieciešama iepriekšēja elektroniska reģistrācija ar bezmaksas ieejas kartes saņemšanu. Pasākums tiek organizēts PAR ZIEDOJUMIEM.
Līksnas meteorīts ir pirmais zināmais Latvijas teritorijā nokritušais meteorīts.
2020-06-29 2020-06-25 Meteorītu muzejs Rīgā aicina uz īpašiem Asteroīdu dienas klātienes pasākumiem š.g. 30. jūnijā un 4. jūlijā:
(vietu skaits ierobežots!) Nepieciešama iepriekšēja elektroniska reģistrācija ar bezmaksas ieejas kartes saņemšanu. Pasākums tiek organizēts PAR ZIEDOJUMIEM.
Pēc ilgstošas ārkārtas Covid-19 situācijas dīkstāves, Meteorītu muzejs apmeklētājus atkal pieņems sākot no š.g. Asteroīdu dienas, t.i. 30. jūnija. Šogad Covid-19 situācijas dēļ Rīga ir viena no nedaudzām vietām pasaulē, kur Asteroīdu dienas pasākumi tiek organizēti klātienē. Ierašanās tikai ar iepriekšēju e-pierakstu!
2020-06-02 Mūsu apmeklētāju ērtībai Meteorītu muzejā ir izstrādāta un ieviesta elektronsikā rezervācijas jeb e-pieraksta sistēma:
Ierašanās Meteorītu muzejā tikai ar iepriekšēju rezervāciju - e-pierakstu! Ierašanās Meteorītu muzejā iespējama tikai ar iepriekšēju laika saskaņošanu! Tagad pirms Meteorītu muzeja vizītes jāveic iepriekšēja bezmasas elektroniska reģistrācija, saņemot attiecīgajam rezervācijas laikam Ieejas karti, kas jāuzrāda muzejā. Lūdzu, jautājiet mums epastā
info@meteoriti.lv vai telefoniski par citiem pieejamiem muzeja apmeklējuma laikiem (arī tiem, kas šobrīd nav izsludināti kā aktīvi!), iespēju robežās vienmēr centīsimies piedāvāt jums visizdevīgāko muzeja apmeklējuma laiku. Meteorītu muzeja pakalpojumi tiek nodrošināti atbilstoši spēkā esošajam muzeja pakalpojumu cenrādim.
2020-01-31 Atbilstoši Covid-19 stāvoklim Meteorītu muzejs uz laiku būs slēgts!
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