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  VAI JŪS ZINĀJĀT, KA...



 
Review of the Meteoritics World News
Meteorītikas ziņu apskats angļu valodā

: meteors; asteroids; comets; space-junk.


  • 2025-05-23
    Twenty years ago, the US Congress instructed NASA to find 90% of near-Earth asteroids threatening Earth. They've made progress finding these asteroids that orbit the Sun and come to within 1.3 astronomical units of Earth. However, they may have to expand their search since astronomers are now finding asteroids co-orbiting ...
  • 2025-05-20
    In recent years, humanity has visited several near-Earth asteroids (NEAs), including Ryugu (Hayabusa2) and Didymos (DART). However, we will need more frequent missions to start gathering more helpful information about this class of over 37,000 space rocks. CubeSats have off-the-shelf components and a relatively small size, making them a potentially ...
  • 2025-05-19
    It was big news years ago when Mars orbiters found streaks of what appeared to be water running down Martian cliffs and crater walls. Scientists worked hard to figure out what they were. Some proposed that they were seasonal streaks of briny ice, melting as the weak Mars summer arrived. ...
  • 2025-05-18
    Spacecraft orbiting Mars can reveal small features on the planet's surface, but there are only so many things you can see from above. When a meteor strikes the surface of Mars, it can excavate sub-surface material, allowing scientists to study what lies beneath. Researchers have simulated various impacts on Mars, ...
  • 2025-05-16
    NASA’s Perseverance Rover didn't just look up—it captured a sprint across the Martian sky! On March 1st, its navigation camera locked onto Deimos as the moon raced overhead in the pre-dawn darkness. Sixteen rapid-fire, 3-second exposures stacked together reveal the moon's movement across the Martian sky. The pictures were taken ...
  • 2025-05-14
    Shape Memory Alloy (SMA) is becoming increasingly common in space exploration applications. It has primarily been used in deployable structures, such as antenna booms or solar sail deployment. However, it also has a use case nearer the ground of whatever planet, moon, or asteroid it finds itself near. A new ...

  • 2025-04-25
    When we explore space, we make discoveries — about never-before-seen asteroids, unusual exoplanets, and even our own planet. But to find out new things, we have to continue seeking.
  • 2025-04-11
    Comets, moons, tiny twisters, and blueberries — they may be small, but they’re far from insignificant.
  • 2025-04-11
    Catch this spectacular comet over the next few weeks.
  • 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.

  • 2025-05-24
    Paris, France (SPX) May 22, 2025 A newly released image from the European Space Agency's Mars Express mission reveals a crater layered with geological history and sculpted by ancient martian forces. Captured in October 2024 by the orbiter's High Resolution Stereo Camera (HRSC), the scene features Deuteronilus Cavus, a 120-kilometer-wide depression ...

  • 2025-05-23
    Researchers from Nagoya City University, Tohoku University, and other institutions have used numerical simulations to replicate how a peculiar mineral texture called barred olivine forms inside chondrules—millimeter-sized spherical particles found in meteorites. These chondrules are considered time capsules from the early solar system, and barred olivine is a rare mineral ...
  • 2025-05-23
    The stately and inclined spiral galaxy NGC 3511 is the subject of this NASA/ESA Hubble Space Telescope image. The galaxy is located 43 million light-years away in the constellation Crater (The Cup). From Hubble's vantage point in orbit around Earth, NGC 3511 is tilted by about 70 degrees, intermediate between ...
  • 2025-05-21
    The latest selfie by NASA's Perseverance rover at Mars has captured an unexpected guest: a Martian dust devil.
  • 2025-05-21
    In recent years, humanity has visited several near-Earth asteroids (NEAs), including Ryugu (Hayabusa2) and Didymos (DART). However, we will need more frequent missions to start gathering more helpful information about this class of over 37,000 space rocks. CubeSats have off-the-shelf components and a relatively small size, making them a potentially ...
  • 2025-05-16
    What steps can be taken to enhance in-situ resource utilization (ISRU) for future astronauts on Mars? This is what a recent study presented at the 56th Lunar and Planetary Science Conference hopes to address as an international team of researchers investigated the reasons, benefits, and challenges of conducting ISRU on ...

  • 2025-05-22
    Curiosity arrived at a ridge-rich site that might be Mars’ version of a boxwork structure, but a perched wheel prevented close analysis. Instead, the rover unleashed a suite of cameras and sensors to document its strange new surroundings while prepping for a Friday return. Curiosity has rolled into another fascinating ...
  • 2025-05-22
    NASA’s Perseverance rover has reached a scientifically thrilling region on Mars called Krokodillen, where some of the planet’s oldest rocks may hold vital clues about early Martian environments — possibly even ancient life. Rich in clay, olivine, and carbonate minerals, the site promises insights into the watery past of Mars, ...

  • 2025-05-23
    Scientists may have solved the mystery of why the moon shows ancient signs of magnetism although it has no magnetic field today. An impact, such as from a large asteroid, could have generated a cloud of ionized particles that briefly enveloped the moon and amplified its weak magnetic field.
  • 2025-05-20
    Astronomers have filled a large gap in knowledge about Mars' water cycle. Their research on water percolating from surface to aquifer could change the picture of what early Mars was like, suggesting that less of the planet's water may have been available to become rain and refill lakes and oceans.
  • 2025-05-19
    Researchers analyzed a global database of 500,000 strange streaks that occur on steep Martian slopes, concluding that they're most likely caused by dry processes rather than liquid flow.

: meteorites; asteroids; comets.


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2025/05/24 144   Meteoriti.LV
ŠODIENAS AKTUĀLAIS METEORĪTIKAS KALENDĀRS

Mēness fāze
24. maijā vēsturē zināmi nokrituši 5 meteorīti:
Otomi (1867)
Assisi (1886)
Cross Roads (1892)
Kisvarsány (1914)
Banten (1933)
Pavisam maija vēsturē zināmi 102 nokrituši meteorīti:
15 jeb 14.7% no tiem glabājas Latvijā Meteoriti.LV kolekcijā.
Ievērojiet, nesen iespējams nokrituši jauni meteorīti:
2024. g. 25. augustā Nqweba, South Africa [??]
2024. g. 10. decembrī Amo, Indiana, USA [??]
š.g. 18. februārī Drelów, Poland [??]
š.g. 21. februārī Codyville, USA [??]
š.g. 5. martā Kwalwat Limgaon, India [??]
Šobrīd debesīs novērojamas 2 aktīvās meteoru plūsmas:
★★★☆ η-Aquariids (Maksimums: May 06);
★☆☆☆ 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 231 gads.
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 161 gada.
Pēdējais zināmais meteorīts Latvijas teritorijā nokrita pirms 135 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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