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Micrometeorites

New Year Reflections: Favorite micrometeorites from 2022

I can hardly believe that 2022 is already drawing to a close. I don’t know about you, but I feel like it went by in a flash. For me, this year has been quite a balancing act. Beyond collecting and photographing micrometeorites with Jan Braly Kihle, a few of this year’s highlights include:

  • Giving numerous lectures about micrometeorites at schools and universities in Europe; and

Of course, when thinking back on the year, it would be impossible not to discuss some of my favorite micrometeorites from 2022. Selecting just a few micrometeorites from this season is quite a task, as I discovered over 900 micrometeorites between April to November; my most successful year yet! I will discuss each of these favorites with you now.

I simply can’t tell you how much I love hearing from you on Facebook, Instagram, and Twitter. I would be absolutely delighted if you would share your hopes and dreams for 2023 with me there. I wonder what the new year will bring?

Yours truly,

Jon Larsen

NMM 3193

NMM 3193 (middle row, third column) is a barred olivine (BO-type) micrometeorite measuring approximately 0.3 mm that was discovered by yours truly on April 22, 2022 in Skjetten, Akershus, Norway. This aerodynamic ellipsoid particle has distinct polysomatic crystal domains and features stripy olivine crystals with some discrete bluish oxidation. Jan Braly Kihle and I broke a world record when we created the world’s highest resolution photograph of a micrometeorite live on Twitch. The single image of NMM 3193 is over a GB!

NMM 4028

NMM 4028 (middle row, fifth column) is a barred olivine (BO-type) micrometeorite measuring approximately 0.2 mm that was discovered by yours truly on November 7, 2022 in Tårup, Funen, Denmark. This aerodynamic subspherical particle has a metal bead composed of nickel-iron in front and features classic stripy olivine crystals.

NMM 3177

Measuring approximately 0.3 mm, NMM 3177 (middle row, first column) is a transitional micrometeorite featuring distinct characteristics of both barred olivine (BO-type) and cryptocrystalline (CC-type) micrometeorites. This elongated aerodynamic particle features beautiful olivine crystals and a nickel-iron metal bead with a sulfide rim in its middle, due to spin during atmospheric entry. It was discovered by yours truly on April 7, 2022 in Stavanger, Norway.

NMM 3231

NMM 3231 (top row, fourth column) was discovered by yours truly in Askim, Østfold, Norway on April 26, 2022. Measuring approximately 0.4 mm, it is a striking porphyritic olivine (PO-type) micrometeorite measuring approximately 0.4 mm. This irregular, vesicular particle is a low-heated micrometeorite / barely-melted PO-type variety featuring rare, colorless olivine crystals composed of forsterite in colorless glass with chunks of nickel-iron and sulfide.

NMM 3369

Project Stardust glass micrometeorite NMM 3369 with strange vessicles discovered and photographed by Jon Larsen and Jan Braly Kihle side profile
Side profile view of NMM 3369, discovered and photography by Jon Larsen and Jan Braly Kihle. © Project Stardust, 2022.

NMM 3369 (bottom row, fourth column) is a glass (V-type) spherule with one large and several small nickel-iron metal beads, featuring conical crystallization in the front and many gas vesicles in the back. It is mainly composed of chondritic glass, but its large nickel-iron bead in front is surrounded by a conical crystalline area. This strange 0.3 mm micrometeorite, which features foamy vesicles, was discovered by yours truly on June 25, 2022 in Kringsjå, Oslo, Norway.

NMM 3442

NMM 3442 (top row, third column) is an olive green glass (V-type) spherule with a metal bead, conical crystallization in the front, and one large gas vesicle open in the middle. Measuring approximately 0.4 mm, this fascinating micrometeorite features chondritic glass and a nickel-iron bead in front surrounded by conical crystalline area. It was discovered by yours truly on August 8, 2022 in Kringsjå, Oslo, Norway.

NMM 3452

NMM 3452 (bottom row, second column) is a perfect olive green chondritic glass (V-type) spherule measuring approximately 0.4 mm with small intact gas vesicles visible inside. Usually, glass micrometeorites have one large vesicle from degassing, this one has myriad. It reminds me of industrial particles that have many vesicles from “explosive heating”. Perhaps explosive heating caused by a high angle atmospheric entry with unusually rapid and strong temperature spikes could be responsible for this phenomenon, too? It was discovered by yours truly on August 12, 2022 next to Biorama Projekt in Joachimsthal, Germany.

NMM 3517

Measuring approximately 0.3 mm, NMM 3517 (middle row, second column) is a light olive green glass (V-type) spherule with large central void bursted open in a large opening. It features small vesicles inside the glass walls, which are composed mainly of chondritic glass. This captivating micrometeorite was discovered by yours truly on August 15, 2022 in Skedsmo, Norway.

NMM 3661

NMM 3661 (bottom row, first column) is a porphyritic olivine (PO-type) spherule featuring coarse olivine crystals held together by dark glass. Featured in our debut Winter 2022 Collection, this spellbinding micrometeorite is mainly composed of forsterite olivine crystals and chondritic glass. NMM 3661 measures 0.3 mm and was discovered by yours truly on August 22, 2022 in Skedsmo (Grove Knudsen), Norway.

NMM 3785

NMM 3785 (bottom row, third column) is an ellipsoid iron (I-type) micrometeorite composed entirely of iron oxide, FeO, which is otherwise known as the mineral wüstite. The entire spherule is a metal bead and measures approximately 0.3 mm. It was discovered by yours truly on September 12, 2022 in Brånås, Norway.

NMM 3793

NMM 3793 (middle row, fourth column) is a light translucent green elongated glass (V-type) micrometeorite that features a nickel-iron metal bead in the front surrounded by a conical crystalline area. Measuring approximately 0.5 mm and composed of chondritic glass and olivine crystals, this giant cosmic gem was discovered by yours truly on September 12, 2022 in Brånås, Norway.

NMM 3854

NMM 3854 (bottom row, fifth column) is a rare star-shaped, cryptocrystalline (CC-type micrometeorite that somewhat appears like a cosmic umbrella. It features a gold-toned nickel-iron metal bead in the center with distinct pink oxidation. Measuring approximately 0.3 mm, NMM 3854 is composed mainly of forsterite olivine crystals and was discovered by yours truly on September 21, 2022 in Strömstad, Sweden.

NMM 3871

NMM 3871 (top row, second column) is a pale golden aerodynamic cryptocrystalline (CC-type) droplet measuring approximately 0.3 mm that features a nickel-iron metal bead in the front, which is slightly off center axis. It is composed mainly of a forsterite olivine cryptocrystalline matrix. Discovered by yours truly on September 21, 2022 in Strömstad, Sweden, this mesmerizing gem is a true wonder.

NMM 4002

NMM 4002 (top row, first column) is a glittering grey barred olivine (BO-type) aerodynamic particle that looks almost fused, like an ice cream cone with one scoop. Measuring approximately 0.3 mm, it is composed mainly of forsterite olivine crystals in glass, with magnetite “Christmas trees” on the surface. This fun cosmic treasure was discovered by yours truly on October 21, 2022 in Østre Aker vei, Oslo, Norway.

NMM 4008

NMM 4008 (top row, fifth column) is a shiny black glass (V-type) spherule with a conical crystallization and a relatively large “white” metal bead (nickel-rich) in the front. Composed mainly of chondritic glass and measuring approximately 0.3 mm, this bewitching micrometeorite is sure to become a Project Stardust community favorite. Appropriately discovered by yours truly on October 21, 2022 in Østre Aker vei, Oslo, Norway.

Just in case you're new here!

Together we have amassed the world's most expansive collection of micrometeorites and we can't wait to share it with you.

Whether you're an expert in the field, an art collector with an appetite for treasures from space, or a budding stardust enthusiast, we hope you'll enjoy learning about our work.

Connect with us on social media to share the excitement of seeing new micrometeorites for the first time!

Jon Larsen & Jan Braly Kihle

We're so glad you're here!

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WINTER 2022 COLLECTION

Meet this season's micrometeorites

This season's collection features a variety of stunning micrometeorites. From mountainous cryptocrystalline turtlebacks and bewitching glass spherules to ultra rare giants. Available for a limited time only.

NMM 1448: V-TYPE

NMM 1448:  V-TYPE

Glass / Vitreous

Glass or vitreous type (V-type) micrometeorites each a temperature of up to 2000°C (3600°F) as they descend through the atmosphere..

These delicate, translucent spherules are difficult to find due to their lack of magnetism, since most of their metals evaporated during descent. 

NMM 1359:  CC-TYPE

Crypto-crystalline

Cryptocrystalline (CC-type) micrometeorites are composed of glassy particles with fine-grained crystallites that are too small to recognize as individual grains.

Many of these magnificent spherules feature metal beads and aerodynamic forms, while others have a "turtleback" shape with humps distributed evenly around the spherule.

NMM 1359:  CC-TYPE

NMM 500:  BO-TYPE

Barred Olivine

Barred olivine (BO-type) spherules are coarse-grained  micrometeorites made of the magnesium variety of the mineral olivine, forsterite, which is punctuated with small particles of magnetite.

The surface features striations that are formed when iron reacts with oxygen in the atmosphere. 

NMM 500:  BO-TYPE

NMM 1149:  PO-TYPE

Porphyritic Olivine

Porphyritic olivine (PO-type) micrometeorites are also made of forsterite, a type of olivine that is made of magnesium.

There are many morphological varieties of this type of micrometeorite; From evenly distributed small crystals, to crystals that increase in side, to extremely large or even possibly a single olivine crystal.

NMM 1149:  PO-TYPE

NMM 1271:  Sc-TYPE

Scoriaceous

When stardust does not reach a peak temperature of at least 1350°C (2500°F) during entry and deceleration, it barely melts. Volatile elements expand and escape in the form of gas bubbles, which results in a scoriaceous (SC-type) or vesicular micrometeorite.

Micrometeorites of this type are extremely difficult to find.

NMM 1271:  SC-TYPE

NMM 1271: G-, I-, CAT-typeS

Other Types

From G-types with dark silicate glass, I-types dominated by iron, and milky CAT spherules  enriched with calcium, aluminum, and titanium, to fossil, unmelted, and un-categorized micrometeorites.

There is no question that Jon Larsen and Jan Braly Kihle's contributions have had a dramatic effect on the field.

NMM 1271:  G-/I-/CAT-TYPES

Jon and Jan are
EXCEPTIONAL ARTISTS AND SCIENTISTS. 

Michael Zolensky

NASA JOhnson Space Center

SEM Collection

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Never forget: YOU ARE SURROUNDED BY STARDUST, inside and out.

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FIREBALL: Visitors from Darker Worlds

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From directors Werner Herzog and Clive Oppenheimer, this remarkable journey across our planet and universe explores how meteorites, shooting stars, and deep impacts have awoken our wonder about other realms-and make us rethink our destinies.

Limited Edition

The Atlas

of Micrometeorites

Never before has it been possible to see stardust in such a large format with crisp details. The 500+ color images are made possible by a new photo technology developed for this project by the author and mineralogist Jan Braly Kihle. 

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The Atlas of Micrometeorites provides an INVALUABLE RESOURCE
for stardust hunters around the world.

Matthew Genge

Imperial College, London

ORIGIN STORIES

Jon Larsen revolutionized the study of micrometeorites when he became the first person to discover a micrometeorite from an urban environment. Then a new form of art emerged when he and Jan Braly Kihle created the world's first high resolution photographs of micrometeorites in colour.

Learn about the singular moment that led to Jon's groundbreaking discovery
and the phone call that kickstarted a truly epic friendship.

Jon Larsen revolutionized the study of micrometeorites when he became the first person to discover a micrometeorite from an urban environment. Then a new form of art emerged when he and Jan Braly Kihle created the world's first high resolution photographs of micrometeorites in colour.

Learn about the singular moment that led to Jon's groundbreaking discovery and the phone call that kickstarted a truly epic friendship.

I HAVE TO KNOW

I'm ready. TEACH ME.

Micrometeorites

Jon Larsen and Jan Braly Kihle have amassed the world's most expansive collection of urban micrometeorites and they want you to follow in their footsteps.

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HALLO and welcome!

We're Jon Larsen & Jan Braly Kihle

We are world renowned micrometeorite experts here to share our cosmic art and inspire the world to become star hunters.

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