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Review of the Meteoritics World News
Meteorītikas ziņu apskats angļu valodā
  • CNEOS Predicts Another Small Asteroid Impact, This One over Northwestern France
    2023-02-14
    Another tiny asteroid on a collision course with Earth was detected over the weekend, and JPL’s CNEOS Scout system accurately predicted where and when the impact would happen, well before it actually occurred.
  • NASA System Predicts Small Asteroid to Pass Close by Earth This Week
    2023-01-25
    On Thursday, Jan. 26, a small near-Earth asteroid will have a very close encounter with our planet. Designated 2023 BU, the asteroid will zoom over the southern tip of South America at about 4:27 p.m. PST (7:27 p.m. EST) only 2,200 miles (3,600 kilometers) above the planet’s surface and well ...
  • NASA Program Predicted Impact of Small Asteroid Over Ontario, Canada
    2022-11-22
    In the early hours of Saturday, Nov. 19, the skies over southern Ontario, Canada, lit up as a tiny asteroid harmlessly streaked across the sky high in Earth’s atmosphere, broke up, and likely scattered small meteorites over the southern coastline of Lake Ontario. The fireball wasn’t a surprise. Roughly 1 ...
  • US Space Force Releases Decades of Bolide Data to NASA for Planetary Defense Studies
    2022-04-07
    Hosted by JPL’s Center for Near Earth Object Studies, the data can be used by the science community to better understand how asteroids break up when entering the atmosphere.
  • Updated Calculations Refine the Impact Probability for (29075) 1950 DA
    2022-03-29
    (29075) 1950 DA is a kilometer-sized asteroid that will make a close approach to Earth in 2880 and, because of the corresponding impact probability and size, has ranked at the top of the Sentry risk list since 2014.
  • NASA System Predicts Impact of Small Asteroid
    2022-03-15
    A small asteroid hit Earth’s atmosphere over the Norwegian Sea before disintegrating on March 11, 2022. But this event wasn’t a complete surprise: Astronomers knew it was on a collision course, predicting exactly where and when the impact would happen.
  • NASA’s Next-Generation Asteroid Impact Monitoring System Goes Online
    2021-12-06
    To date, nearly 28,000 near-Earth asteroids (NEAs) have been found by survey telescopes that continually scan the night sky, adding new discoveries at a rate of about 3,000 per year. But as larger and more advanced survey telescopes turbocharge the search over the next few years, a rapid uptick in ...
  • International Observation Campaign Will Assess Asteroid Timing Accuracies
    2021-10-07
    The International Asteroid Warning Network (IAWN) will conduct an observational campaign in November with the goal of assessing the accuracy of the observation times reported by asteroid observers.
  • Planetary Radar Observes 1,000th Near-Earth Asteroid Since 1968
    2021-09-03
    On Aug. 14, 2021, a small near-Earth asteroid (NEA) designated 2021 PJ1 passed our planet at a distance of over 1 million miles (about 1.7 million kilometers). Between 65 and 100 feet (20 and 30 meters) wide, the recently discovered asteroid wasn’t a threat to Earth. But this asteroid’s approach ...
  • NASA Spacecraft Provides Insight into Asteroid Bennu's Future Orbit
    2021-08-11
    In a study released Wednesday, NASA researchers used precision-tracking data from the agency's Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer (OSIRIS-REx) spacecraft to better understand movements of the potentially hazardous asteroid Bennu through the year 2300, significantly reducing uncertainties related to its future orbit, and improving scientists' ability to determine ...
  • 'Bouncing' comets could deliver building blocks for life to exoplanets
    2023-11-15
    How did the molecular building blocks for life end up on Earth? One long-standing theory is that they could have been delivered by comets. Now, researchers from the University of Cambridge have shown how comets could deposit similar building blocks to other planets in the galaxy.
  • Mining asteroids: A new method to extract metals from asteroids
    2023-10-31
    Extraterrestrial mining and metal processing are key strategies for space exploration. In a new study in Scientific Reports, Rodolfo Marin Rivera, and a team of scientists in materials science, conducted catalytic dissolution of metals from meteorite proxies of metal-rich asteroids by using a deep eutectic solvent. These solvents are important ...
  • Curiosity rover finds new evidence of ancient Mars rivers, a key signal for life
    2023-10-24
    New analysis of data from the Curiosity rover reveals that much of the craters on Mars today could have once been habitable rivers.
  • Searching for concentrated biosignatures in an ancient Mars mud lake
    2023-10-18
    A landmark discovery by a collaborative team led by the Planetary Science Institute's Alexis Rodriguez has unveiled evidence of sedimentary plains created by aquifer drainage within Martian collapse formations termed chaotic terrains.
  • Hypervelocity impact experiments probe the origin of organics on the dwarf planet Ceres
    2023-10-16
    One of the most exciting findings from NASA's Dawn mission is that Ceres, the largest object in the asteroid belt that lies between Mars and Jupiter, hosts complex organics. The discovery of aliphatic molecules, which consist of carbon and hydrogen chains, in conjunction with evidence that Ceres has abundant water ...
  • Renaissance for magnetotactic bacteria in astrobiology
    2023-10-02
    Magnetotactic bacteria can form magnetofossils like magnetic nanocrystals as observed in the Martian meteorite ALH84001, which held a special place in the field of astrobiology primarily in the early 90s. While the flourishing of interest in magnetotactic bacteria has waned over time, a resurgence of magnetosome formation has led to ...
  • Tracking an errant space rocket to a mysterious crater on the moon
    2023-11-25
    In March 2022, a defunct part of a space rocket hurled toward the moon's surface and impacted near the Hertzsprung Crater, an enormous impact feature on the far side of the moon that is never directly visible from Earth.
  • A novel system for slip prevention in unmanned rovers
    2023-11-15
    Given the hostile conditions of extraterrestrial environments, unmanned rovers play a critical role in the exploration of planets and moons. NASA's Mars and lunar exploration rovers have significantly contributed to our understanding of these extraterrestrial bodies. Planetary surfaces often present challenging landscapes with slopes, craters, and dunes.
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2023/11/29 333   Meteoriti.LV
ŠODIENAS AKTUĀLAIS METEORĪTIKAS KALENDĀRS

Mēness fāze
29. novembrī vēsturē zināmi nokrituši 2 meteorīti:
Mount Vaisi (1637)
Chajari (1933)
Pavisam novembra vēsturē zināmi 75 nokrituši meteorīti:
16 jeb 21.3% no tiem glabājas Latvijā Meteoriti.LV kolekcijā.
Ievērojiet, nesen iespējams nokrituši jauni meteorīti:
š.g. 11. martā El Menia
š.g. 25. aprīlī Elmshorn, Germany[??]
š.g. 8. maijā New Jersey, USA[??]
š.g. 8. jūlijā Boutal-fil, Chad[??]
Apzīmējumi:
- Meteoritical Bulletin Database
- The Catalog of Meteorites, Natural History Museum, UK
- The Encyclopedia of Meteorites, IMCA
[??] - oficiāli vēl neapstiprināts, nav zināmi analižu un klasifikācijas rezultāti
Šobrīd debesīs novērojamas 4 aktīvās meteoru plūsmas:
★★☆☆ Northern Taurids (Maksimums: Nov 12);
★★★☆ Leonids (Maksimums: Nov 17);
★☆☆☆ Phoenicids (Maksimums: Dec 06);
★☆☆☆ Monocerotids (Maksimums: Dec 09).
Aktuālā informācija par Zemei tuviem objektiem: 
NASA NEO (Near Earth Objects) programma    |    IAU Mazo planētu centrs

Mazliet vēstures

Kopš meteorītikas zinātnes dzimšanas pagājuši 229 gadi.
Pirmais zināmais meteorīts Latvijas teritorijā nokrita pirms 203 gadiem.
Otrais zināmais meteorīts Latvijas teritorijā nokrita pirms 160 gadiem.
Trešais zināmais meteorīts Latvijas teritorijā nokrita pirms 159 gadiem.
Pēdējais zināmais meteorīts Latvijas teritorijā nokrita pirms 133 gadiem.
Pirmais meteorītikai veltītais muzejs Latvijā dibināts pirms 8 gadiem.

 

GADA METEORĪTS
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