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  VAI JŪS ZINĀJĀT, KA...



 
Review of the Meteoritics World News
Meteorītikas ziņu apskats angļu valodā


: meteors; asteroids; comets; space-junk.



  • 2025-02-18
    We typically think of the Oort cloud as scattered ice balls floating far from the Sun, yet still tied to it gravitationally. Occasionally, some wayward gravitational perturbation will knock one of them a weird way and create a long-period comet, which might briefly delight us lowly humans by providing something ...

  • 2025-02-18
    On February 18, 2025, NASA's Center for Near Earth Object Studies slightly increased the odds of asteroid 2024 YR4 hitting us in 2032 to 1 in 32. The post Asteroid 2024 YR4 chance of hitting Earth up to 1 in 32 first appeared on EarthSky.

  • 2025-01-31
    From galaxies to stamps to asteroid samples, some collections never go out of style.
  • 2025-01-30
    Experts weigh in about the recently discovered near-Earth asteroid 2024 YR4 that has about a 1% chance of impacting Earth on Dec. 22, 2032.
  • 2024-12-20
    Perseverance makes it to the Jezero Crater rim, and we’re antsy to start another year of space exploration.
  • 2024-12-18
    Catch this once-in-a-lifetime comet over the next few weeks.
  • 2024-11-29
    A Jovian storm has its roots in a magnetic vortex, life finds a way into an asteroid sample, and more this week in space.
  • 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
    The European Space Agency (ESA) is preparing to launch a mission to study the aftermath of DART's impact on the asteroid moonlet Dimorphos.

  • 2025-02-19
    Washington (AFP) Feb 18, 2025 An asteroid that could level a city now has a 3.1-percent chance of striking Earth in 2032, according to NASA data released Tuesday - making it the most threatening space rock ever recorded by modern forecasting. Despite the rising odds, experts say there is ...
  • 2025-02-19
    Tokyo, Japan (SPX) Feb 18, 2025 Asteroids that pass close to Earth often raise concerns about potential collisions, but they also present valuable opportunities for scientific discovery. One such celestial body, the 900-meter-wide asteroid Ryugu, has recently yielded intriguing evidence that may enhance our understanding of life's building blocks in the ...

  • 2024-12-16
    Last week, NASA unveiled a long-term plan for robotic exploration of Mars, including work to prepare for later human missions. Jeff Foust reports on the plan as well as ongoing efforts to revamp the Mars Sample Return program.
  • 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 ...

  • 2025-02-19
    An asteroid that could level a city now has a 3.1-percent chance of striking Earth in 2032, according to NASA data released Tuesday—making it the most threatening space rock ever recorded by modern forecasting.
  • 2025-02-18
    More pocked with craters than any other object in our solar system, Jupiter's outermost and second-biggest Galilean moon, Callisto, appears geologically unremarkable. In the 1990s, however, NASA's Galileo spacecraft captured magnetic measurements near Callisto that suggested that its ice shell surface—much like that of Europa, another moon of Jupiter—may encase ...


: meteorites; asteroids; comets.




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2025/02/19 50   Meteoriti.LV
ŠODIENAS AKTUĀLAIS METEORĪTIKAS KALENDĀRS

Mēness fāze
19. februārī vēsturē zināmi nokrituši 4 meteorīti:
Eichstädt (1785)
Portugal (1796)
Sinnai (1956)
Dosso (1962)
Pavisam februāra vēsturē zināmi 95 nokrituši meteorīti:
22 jeb 23.2% no tiem glabājas Latvijā Meteoriti.LV kolekcijā.
Ievērojiet, nesen iespējams nokrituši jauni meteorīti:
2024. g. 25. jūlijā Charlottetown
2024. g. 6. augustā Ait Saoun
Šobrīd debesīs novērojamas 2 aktīvās meteoru plūsmas:
★★☆☆ α-Centaurids (Maksimums: Feb 08);
★☆☆☆ Antihelion Source (Maksimums: marts-apr. un vēls maijs-jūn.).
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
2025
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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