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  VAI JŪS ZINĀJĀT, KA...



 
Review of the Meteoritics World News
Meteorītikas ziņu apskats angļu valodā


: meteors; asteroids; comets; space-junk.


  • 2025-05-08
    NASA’s Psyche mission is on its way to explore a metal-rich asteroid in the asteroid belt between Mars and Jupiter. All was going well since its launch in October 2023 until nasa announced a decrease in fuel pressure for the propulsion system. It uses a solar electric propulsion system, generating ...
  • 2025-05-07
    When ISS astronauts return home, they have a hot ride back to Earth's surface. It's been that way since the beginning of human spaceflight to orbital space and beyond. The incoming vehicle uses friction with Earth's atmosphere to slow down to a safe landing speed. The "hot ride" part comes ...
  • 2025-05-07
    To understand how chaotic the early Solar System was, we need only gaze at the Moon. Its cratered surface bears the scars from multitudes of collisions. The early Solar System was like a debris field where objects smashed into each other in cascades of collisions. The same must be true ...

  • 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.

  • 2025-05-12
    Sydney, Australia (SPX) May 12, 2025 Liquid water, a critical component for the habitability of Mars, may still be present beneath its surface, according to a recent study conducted by an international team of geophysicists and geologists. The research, led by Dr. Weijia Sun from the Institute of Geology and Geophysics, ...
  • 2025-05-12
    Greenbelt MD (SPX) May 12, 2025 One year ago today, representatives from NASA and about 30 other U.S. government agencies gathered for a special meeting to simulate and address a threat looming in space. The threat was not an asteroid or aliens, but our very own life-giving Sun. The inaugural Space ...

  • 2025-04-19
    In a study co-authored by a Texas A&M University scientist, researchers have revealed new insights into the geological history of Mars's Jezero Crater, the landing site of NASA's Perseverance rover. Their findings suggest that the crater's floor is composed of a diverse array of iron-rich volcanic rocks, providing a window ...
  • 2025-04-16
    There is a large diversity in the chemical composition of astronomical objects such as planets, comets, circumstellar envelopes, or galactic gas clouds. One great challenge in astrochemistry is to understand in detail how this diversity arises from the cosmic backdrop of the cycling of matter between star birth and destruction, ...
  • 2025-04-16
    A QUT-led study analyzing data from NASA's Perseverance rover has uncovered compelling evidence of multiple mineral-forming events just beneath the Martian surface—findings that bring scientists one step closer to answering the profound question: did life ever exist on Mars?
  • 2025-04-16
    A team of researchers at the University of Oxford have uncovered crucial evidence for the origin of water on Earth. Using a rare type of meteorite, known as an enstatite chondrite, which has a composition analogous to that of the early Earth (4.55 billion years ago), they have found a ...
  • 2025-04-14
    An international team of researchers may have answered one of space science's long-running questions—and it could change our understanding of how life began. Carbon-rich asteroids are abundant in space yet make up less than 5% of meteorites found on Earth.
  • 2025-04-30
    Comets that have hit Earth have been a mixed bag. Early in Earth's history, during the solar system's chaotic beginning, they were likely the source of our planet's water, ultimately making up about 0.02% of the planet's mass. (Mars and Venus received a similar fraction.)
  • 2025-04-30
    The solar system consists of our star, the sun, and everything bound to it by gravity: the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune, along with dwarf planets like Pluto, dozens of moons, and millions of asteroids and comets. The planets orbit the sun in elliptical paths, ...
  • 2025-05-10
    One year ago today, representatives from NASA and about 30 other U.S. government agencies gathered for a special meeting to simulate and address a threat looming in space. The threat was not an asteroid or aliens, but our very own life-giving sun.
  • 2025-05-08
    To understand how chaotic the early solar system was, we need only gaze at the moon. Its cratered surface bears the scars of multitudes of collisions. The early solar system was like a debris field where objects smashed into each other in cascades of collisions. The same must be true ...
  • 2025-05-02
    Space junk and meteoroids are falling to Earth every year, posing a growing risk as they re-enter the atmosphere at high speeds. Researchers are using infrasound sensors to track these objects, including bolides, which are meteoroids breaking apart in the sky.
  • 2025-04-30
    Comets that have hit Earth have been a mixed bag. Early in Earth's history, during the solar system's chaotic beginning, they were likely the source of our planet's water, ultimately making up about 0.02% of the planet's mass. (Mars and Venus received a similar fraction.)
  • 2025-04-30
    The solar system consists of our star, the sun, and everything bound to it by gravity: the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune, along with dwarf planets like Pluto, dozens of moons, and millions of asteroids and comets. The planets orbit the sun in elliptical paths, ...
  • 2025-04-28
    For decades, scientists believed Vesta, one of the largest objects in our solar system's asteroid belt, wasn't just an asteroid and eventually concluded it was more like a planet with a crust, mantle and core. Now, Michigan State University has contributed to research that flips this notion on its head.
  • 2025-04-28
    Perseverance has been busy exploring lower "Witch Hazel Hill," an outcrop exposed on the edge of the Jezero crater rim. The outcrop is composed of alternating light and dark layers, and naturally, the team has been trying to understand the makeup of and relationships between the light and dark layers.

: meteorites; asteroids; comets.


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Info:
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2025/05/12 132   Meteoriti.LV
ŠODIENAS AKTUĀLAIS METEORĪTIKAS KALENDĀRS

Mēness fāze
12. maijā vēsturē zināmi nokrituši 3 meteorīti:
Butsura (1861)
Kaptal-Aryk (1937)
Noventa Vicentina (1971)
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 3 aktīvās meteoru plūsmas:
★★★☆ η-Aquariids (Maksimums: May 06);
★★☆☆ η-Lyrids (Maksimums: May 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 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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