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  VAI JŪS ZINĀJĀT, KA...



 
Review of the Meteoritics World News
Meteorītikas ziņu apskats angļu valodā


: meteors; asteroids; comets; space-junk.


  • 2024-11-03
    This eerie, dark silhouette is a cometary globule designated GN 16.43.7.01. Despite their name, cometary globules have nothing to do with comets, beyond having a similar shape of a dusty head with a tail.
  • 2024-10-12
    Following month’s of speculation, C/2023 A3 (Tsuchinshan-ATLAS) has emerged into the UK’s evening sky as a bright comet in the afterglow of the setting Sun.

  • 2024-11-23
    Mars formed 4.5 billion years ago, roughly the same time as the Earth. We know that water was stable on Earth since about 4.3 billion years ago, but when was it present on Mars? Researchers investigated a meteorite that originated from Mars and found zircon crystals that date back to ...
  • 2024-11-22
    One mystery in planetary science is a satisfying origin story for Mars's moons, Phobos and Deimos. Were they chunks of Mars blasted into space by a meteor impact? Were they captured asteroids from the belt? A new supercomputer simulation found that a reasonable explanation could come from a massive asteroid ...
  • 2024-11-21
    For a little over a month now, the Earth has been joined by a new ‘mini-moon.’ The object is an asteroid that has been temporarily accompanying Earth on its journey around the Sun. By 25th November it will have departed but before then, astronomers across the world have been turning ...

  • 2024-11-15
    Liquids do all kinds of interesting things on planetary surfaces, from creating rippled impact craters to streaming out from under carbon dioxide glaciers.
  • 2024-10-11
    Asteroids that come in pairs, matching volcanic features on Mars and Earth, and the potential space policies of two administrations.
  • 2024-10-07
    The European Space Agency’s Hera spacecraft launched on Oct. 7, 2024, from Cape Canaveral, Florida. It will travel to the Didymos-Dimorphos asteroid system to study the aftermath of the first-ever field test of an asteroid deflection technique.
  • 2024-09-27
    A Martian cloud atlas, LightSail wins big, and multiple missions coast toward launch.
  • 2024-09-26
    Catch this once-in-a-lifetime comet over the next few days.
  • 2024-09-26
    The European Space Agency (ESA) is preparing to launch a mission to study the aftermath of DART's impact on the asteroid moonlet Dimorphos.
  • 2024-09-13
    A Planetary Society-funded project to understand asteroids achieved its main goals and scientific objectives this year.
  • 2024-08-23
    The “Wow!" signal has a new explanation, and an ultra-cool experiment advances quantum sensing in space. Plus, making an asteroid go “boom!” might work, depending on the circumstances.
  • 2024-08-22
    When a skyscraper-sized asteroid narrowly misses Earth in 2029, three spacecraft may be along for the ride.
  • 2024-08-20
    Detonating a nuclear weapon on or near an asteroid is one of several options for defending the Earth from an impact. Here's what nuking an asteroid might actually do, and why it isn't always the best option.

  • 2024-11-18
    Planetary defense has gone from a relatively fringe topic with little funding to one with NASA missions demonstrating the ability to change an asteroid's orbit. Jeff Foust reviews a book that examines those efforts to detect and defend Earth from asteroids, and the need to do more.
  • 2024-10-14
    ESA last week launched its Hera mission to the same asteroid that NASA's DART spacecraft collided with two years ago. Jeff Foust reports on the struggles the Hera project faced getting the spacecraft launched, from funding challenges to a hurricane.
  • 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.


: meteorites; asteroids; comets.


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2024/11/24 329   Meteoriti.LV
ŠODIENAS AKTUĀLAIS METEORĪTIKAS KALENDĀRS

Mēness fāze
24. novembrī vēsturē zināmi nokrituši 3 meteorīti:
Bocas (1804)
Lakangaon (1910)
Yardymly (1959)
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. 16. martā Caída, Portugal [??]
š.g. 6. augustā Ait Saoun, Morocco[??]
Šobrīd debesīs novērojamas 3 aktīvās meteoru plūsmas:
★★☆☆ Northern Taurids (Maksimums: Nov 12);
★★★☆ Leonids (Maksimums: Nov 17);
★☆☆☆ α-Monocerotids (Maksimums: Nov 21).
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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