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Review of the Meteoritics World News
Meteorītikas ziņu apskats angļu valodā




  • 2024-09-14
    Sydney, Australia (SPX) Sep 12, 2024 On Sept 5, Asteroid 2024 RW1 entered Earth's atmosphere, burning up about 25 kilometers above the Philippines. This event, coinciding with China's announcement of a new asteroid defense initiative, highlighted both the necessity and feasibility of such a plan. While the odds of an asteroid ...

  • 2024-08-19
    NASA is weighing different approaches to its Mars Sample Return program to lower its costs and speed up the return of samples. Dale Skran advocates for an approach that ties the effort more closely to future human exploration of the Red Planet.
  • 2024-05-06
    Last September NASA's OSIRIS-REx spacecraft successfully returned samples from the asteroid Bennu, seven years after its launch. Jeff Foust reviews a book by the mission's principal investigator that describes the long effort to develop the mission and how it overcame obstacles along the way.
  • 2024-04-29
    Mars scientists hoped they would have a better idea of when and how they would get samples back from Mars after NASA completed an internal study of the Mars Sample Return program. Instead, as Jeff Foust reports, NASA is now turning to industry for help on how to reduce the ...
  • 2024-02-12
    Concerns about the budget and plans for NASA's Mars Sample Return (MSR) program came to a head last week when JPL laid off more than 500 employees, citing budget uncertainty about the program. Jeff Foust reports on the issues that have put the future of MSR into question for some.
  • 2024-02-05
    Ingenuity, whose mission ended last month, was a first-of-its-kind Mars helicopter with no guarantees more will follow soon. Ari Allyn-Feuer discusses how sending a large number of similar helicopters could advance Martian exploration in novel ways.
  • 2023-09-25
    On Sunday, NASA's OSIRIS-REx spacecraft returned to Earth, dropping off a capsule containing samples collected from the asteroid Bennu. Jeff Foust reports on the success of the first part of NASA's "Asteroid Autumn" that includes a launch and a flyby.
  • 2023-09-11
    Last month, a paper claimed to have found evidence for interstellar meteorites at the bottom of the Pacific, a claim other scientists have treated skeptically. Jeff Foust review a book by the scientist who is the lead author of that study and other efforts using science to look for interstellar ...
  • 2023-09-05
    The Fox reality TV series "Stars on Mars" wrapped up recently with one "celebronaut" crowned as winner. The series, Dwayne Day explains, also provided useful lessons for real missions to the Red Planet.
  • 2023-07-17
    A Senate appropriations bill released last week would slash funding for NASA's Mars Sample Return program and threaten it with cancellation. Jeff Foust reports on the new fiscal challenges that efforts to return samples from Mars have encountered.

  • 2024-09-13
    Volcanic activity alters the Earth's surface and promotes the development of new ecosystems, providing valuable models for studying soil formation processes such as microbial composition and vegetation succession. Increasing evidence suggests that soil microbes are pivotal in numerous ecological and biogeochemical processes, encompassing carbon mineralization, humus formation, and nutrient cycling.
  • 2024-09-13
    Studies of gravity variations at Mars have revealed dense, large-scale structures hidden beneath the sediment layers of a lost ocean. The analysis, which combines models and data from multiple missions, also shows that active processes in the Martian mantle may be giving a boost to the largest volcano in the ...
  • 2024-09-13
    A pair of asteroid dynamics researchers from Universidad Complutense de Madrid Ciudad Universitaria have found that a small asteroid will make one orbit around the Earth starting this month before departing back into other parts of the solar system.
  • 2024-09-12
    An astrophysicist at the University of Western Ontario finds that the odds of the asteroid 99942 Apophis striking Earth are slightly higher than previously thought. In his study, published in The Planetary Science Journal, Paul Wiegert took a new look at the possibility of a smaller asteroid striking Apophis and ...
  • 2024-09-10
    Cloud enthusiasts have a new tool to investigate striking formations in the skies above the red planet. A browsable database of 20-years-worth of images of clouds and storms, created by the German Aerospace Centre (DLR) in Berlin, is helping scientists better understand how and where features arise in the Martian ...
  • 2024-09-09
    Throughout Earth's history, the planet's surface has been regularly impacted by comets, meteors, and the occasional large asteroid. While these events were often destructive, sometimes to the point of triggering a mass extinction, they may have also played an important role in the emergence of life on Earth. This is ...
  • 2024-09-09
    The dwarf planet Ceres has a diameter of almost 1,000 kilometers and is located in the asteroid belt. In the television series "The Expanse," Ceres gained new fame as the main base of the so-called 'belters': in this series, which is based on real physics, humans colonize the asteroid belt ...
  • 2024-09-06
    The ESA/JAXA BepiColombo mission has successfully completed its fourth of six gravity assist flybys at Mercury, capturing images of two special impact craters as it uses the little planet's gravity to steer itself on course to enter orbit around Mercury in November 2026.

  • 2024-09-14
    NASA’s NEO Surveyor, an infrared space telescope, is under construction at the Jet Propulsion Laboratory, aimed at detecting hard-to-find asteroids and comets that pose a threat to Earth. Set for a 2027 launch, this spacecraft will operate from the L1 Lagrange point, using advanced infrared detectors to spot and track ...
  • 2024-09-13
    ESA’s Cluster satellite, Salsa, marked a pioneering moment with a targeted reentry into Earth’s atmosphere, reducing space debris and enhancing our understanding of space weather dynamics. This historic reentry concludes a 24-year mission that revealed critical insights about Earth’s magnetosphere and its interaction with solar winds, paving the way for ...

: meteorites; asteroids; comets.



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2024/09/14 258   Meteoriti.LV
ŠODIENAS AKTUĀLAIS METEORĪTIKAS KALENDĀRS

Mēness fāze
14. septembrī vēsturē zināmi nokrituši 3 meteorīti:
Aubres (1836)
Palca de Aparzo (1988)
Boumdeid (2011)
Pavisam septembra vēsturē zināmi 106 nokrituši meteorīti:
15 jeb 14.2% no tiem glabājas Latvijā Meteoriti.LV kolekcijā.
Ievērojiet, nesen iespējams nokrituši jauni meteorīti:
2023. g. 29. decembrī Quartzsite, Arizona, USA [??]
š.g. 21. janvārī Ribbeck
š.g. 16. martā Caída, Portugal [??]
š.g. 6. augustā Ait Saoun, Morocco[??]
Šobrīd debesīs novērojamas 2 aktīvās meteoru plūsmas:
★★☆☆ September ε-Perseids (Maksimums: Sep 09);
★★☆☆ Southern Taurids (Maksimums: Oct 10).
Aktuālā informācija par Zemei tuviem objektiem: 
NASA NEO (Near Earth Objects) programma    |    IAU Mazo planētu centrs

Mazliet vēstures

Kopš meteorītikas zinātnes dzimšanas pagājuši 230 gadi.
Pirmais zināmais meteorīts Latvijas teritorijā nokrita pirms 204 gadiem.
Otrais zināmais meteorīts Latvijas teritorijā nokrita pirms 161 gada.
Trešais zināmais meteorīts Latvijas teritorijā nokrita pirms 160 gadiem.
Pēdējais zināmais meteorīts Latvijas teritorijā nokrita pirms 134 gadiem.
Pirmais meteorītikai veltītais muzejs Latvijā dibināts pirms 9 gadiem.

 

GADA METEORĪTS
2024
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!
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