Last updated on June 30th, 2022.

APSI members conduct research and publish their findings in peer-reviewed journals, books, and scientific conferences. We also conduct public outreach through writing our own popular science and give interviews to the media, as well as teaching and giving public talks.

• Download the full list of APSI publications and activities (PDF), or
• Browse through the most recent publications below, or
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Note: Date format is “day.month.year”.

Peer-reviewed papers (2022)

• Holma M., Hall A. M., Kuusiniemi P., Aranciba M., Sarala P., Tanaka H. K. M., Oláh L., Hamar G. & Varga D.: Exploration and resource delineation of bauxite deposits using cosmic-ray muons. In: Christie A. B. (ed.): Proceedings of 16th SGA Biennial Meeting (28.-31.3.2022), vol. 1, pp. 141–144. Accepted 25.11.2021, published online 10.6.2022. APSI contribution #21.
• Holma M.: A new density characterization and visualization tool for delineation and classification of mineral resources: muography. In: Christie A. B. (ed.): Proceedings of 16th SGA Biennial Meeting (28.-31.3.2022), vol. 1, pp. 137–140. Accepted 25.11.2021, published online 10.6.2022. APSI contribution #20.
• Holma M., Skyttä P., Piippo S., Kuusiniemi P., Tanaka H. K. M., Oláh L., Hamar G. & Varga D.: Imaging faults, shear zones and folds with cosmic-ray induced atmospheric muons: an introduction to muography for structural geologists and mining industry. In: Christie A. B. (ed.): Proceedings of 16th SGA Biennial Meeting (28.-31.3.2022), vol. 1, pp. 145–148. Accepted 25.11.2021, published online 10.6.2022. APSI contribution #18.
• Kuusiniemi P., Holma M., Loo K. & Enqvist T.: Muography and geology: does it matter which continent you stand on? Journal of Advanced Instrumentation in Science, vol. 2022, no. 1, doi:10.31526/jais.2022.257. Accepted 7.3.2022, published and date of issue 23.3.2022. APSI contribution #25.
• Holma M., Joutsenvaara J. & Kuusiniemi P.: Muography, outreaching and transdisciplinarity: Towards the golden age of muography. Journal of Advanced Instrumentation in Science, vol. 2022, no. 1, doi:10.31526/jais.2022.258. Accepted 26.1.2022, published 6.3.2022, date of issue 23.3.2022. APSI contribution #24.
• Schenk P. M., Neesemann A., Marchi S., Otto K., Hoogenboom T., O’Brien D. P., Castillo-Rogez J., Raymond C. A. & Russell C. T.: A young age of formation of Rheasilvia basin on Vesta from floor deformation patterns and crater counts. Meteoritics & Planetary Science, vol. 57, iss. 1, pp. 22–47, doi:110.1111/maps.13772. Accepted 9.11.2021, published online 16.12.2021, date of issue 19.1.2022.
• Holma M. J., Xhang Z.-X., Kuusiniemi P., Loo K. & Enqvist E., 2021. Future Prospects of Muography for Geological Research and Geotechnical and Mining Engineering. Chapter 15 (pp. 199–219, doi:10.1002/9781119722748.ch15) in book “Muography: Exploring Earth’s Subsurface with Elementary Particles” by (editors) L. Oláh, H. K. M. Tanaka & D. Varga, American Geophysical Union & Wiley Publishing, Geophysical monograph series 270, ISBN: 9781119722748. Published and date of issue 7.1.2022. APSI contribution #13.
• López I., D’Incecco P., Filiberto J. & Komatsu G.: The volcanology of Idunn Mons, Venus: the complex evolution of a possible active volcano. Journal of Volcanology and Geothermal Research, vol. 421, # 107428, doi:10.1016/j.jvolgeores.2021.107428. Accepted 8.11.2021, published online 12.11.2021, date of issue 1/2022. APSI contribution #19.

Other research publications (2022)

Conference proceedings, extended abstracts, encyclopedia entries, databases, reports, etc.

• Korteniemi J.: Space Exploration in the 21st century – an introduction. The European Robotics Forum 2022, Rotterdam, The Netherlands, 28.–30.6.2022.
• Öhman T., Holma M. & Kuusiniemi P.: Studying Terrestrial Impact Structures With Cosmic-Ray Induced Atmospheric Muons. EGU General Assembly 2022, Vienna, Austria, 23.–27.5.2022.

Popular science: Exhibits and events (2022)

• Öhman T.: Lappajärven geologia. Järviseudun ammatti-instituutti JAMI & Kraatterijärvi Geopark aUGGp -hanke. Excursion of the Lappajärvi crater area geology. 25.5.2022.
• Öhman T., Korteniemi J. (infographics) & Nevala H. (narration): Apollo-ohjelma. Hotelli Kivitippu, Lappajärvi. Photo exhibition about the Apollo missions. Opened on 25.5.2022.
• Öhman T., Korteniemi J. (infographics) & Nevala H. (narration): Lappajärven vertailukohdat. Hotelli Kivitippu, Lappajärvi. Photo exhibition about Lappajärvi references. Opened on 25.5.2022.
• Öhman T. & Korteniemi J. (infographics): Suomalaiset Kuussa. Hotelli Kivitippu, Lappajärvi. Photo exhibition about lunar locations, which have been named after Finnish people. Opened on 25.5.2022.
• Öhman T.: Impact Crater Lake Geopark aUGGp: Regional Geology and the Formation of the Lappajärvi Impact Crater. Excursion of the Lappajärvi crater area geology. Impact Crater Lake Geopark aUGGp; Lappajärvi, Evijärvi, Vimpeli, 2.5.2022.

Popular science: Articles (2022)

• Öhman T.: Törmäystimantteja esiintyy ympäri maailman. Ilkka-Pohjalainen, 24.5.2022, p. 16. Opinion piece explaining the distribution and abundance of impact diamonds, impact melt, and meteorites, in response to recent advertising and news distorting their importance.
• Öhman T.: Kysymyksiä & vastauksia: Onko maapallo ollut samalla tavalla kraatterien peittämä kuin Kuu? Tähdet ja Avaruus, 1/2022, p. 59. Answer to a question about whether the surface of the Earth has ever been as heavily cratered as the Moon.
• Öhman T.: Kysymyksiä & vastauksia: Löytyisikö Suomesta asteroidin törmäyspaikkaa, joka olisi vierailun arvoinen? Tähdet ja Avaruus, 1/2022, pp. 55–56, 27.1.2022. Answer to a question about impact sites worth visiting in Finland.
• Parviainen J. & Öhman T.: Tuho tuli taivaalta. Tekniikan Maailma, 3B/2022, online version 24.1.2022. Article about the Lappajärvi impact crater, with illustration by J. Korteniemi.

Popular science: Lectures and talks (2022)

• Öhman T.: Impact Crater Lake Geopark aUGGp: Regional Geology and the Formation of the Lappajärvi Impact Crater. A popular science lecture about the formation and geology of the Lappajärvi impact crater. Impact Crater Lake Geopark aUGGp; Lappajärvi, Evijärvi, Vimpeli, 2.5.2022.
• Öhman T.: Tulivuoresta törmäyskraatteriksi: Lappajärven tutkimushistoria 1858–1976. A popular science lecture about the early research history of the Lappajärvi impact crater. Järvilakeuden kansalaisopisto, Kulttuurikaverikerho, Kauhava, 25.4.2022.
• Öhman T.: Lappajärven synty ja Järviseudun geologia. A popular science lecture about the formation of Lappajärvi impact crater and the geology of the lake district of Southern Ostrobothnia. Järviseudun ammatti-instituutti JAMI, Alajärvi, 6.4.2022.
• Öhman T.: Lappajärven törmäyskraatteri: Mitä tiedämme ja miten? A remote lecture to the students of the geo high school in Lappajärvi about Lappajärvi impact crater and the scientific evidence we have about its origin and characteristics. Lappajärvi geo high school, 31.3.2022.
• Holma M.: Myonien käyttö geotieteissä. A talk at the yearly spring meeting of The Geological Society of Finland about using muons in geosciences. Suomen Geologinen Seura, Helsinki, 10.2.2022.

Popular science: Courses and workshops (2022)

• TBD

Popular science: Media coverage (2022)

• Jokiaho T.: Kuninkaantupa esittelee ainutlaatuisen kuvakavalkadin Lapuanliikkeestä Isänmaalliseen Kansanliikkeeseen. Torstai-lehti, 22.6.2022. Article noting the space probe photo collection donated by Arctic Planetary Science Institute, and a derived exhibit compiled by T. Öhman.
• Ähtärinjärven Uutisnuotta: Kuninkaantuvan näyttelyt kutsuvat. Ähtärinjärven Uutisnuotta, Kesälehti 22B, p. 6, 18.6.2022. Article noting the space probe photo collection donated by Arctic Planetary Science Institute, and a derived exhibit compiled by T. Öhman.
• Löytömäki A.: Lapuanliikkeeseen ja IKL:ään liittyvää aineistoa on ensimmäistä kertaa nähtävillä Soinissa tässä laajuudessa. Järviseutu-lehti, 16.6.2022. Article noting the space probe photo collection donated by Arctic Planetary Science Institute, and a derived exhibit compiled by T. Öhman.
• Järviseudun Sanomat: Markin museolla suvinäyttelyssä kivikokoelma Raamatun kivet. Järviseudun Sanomat, 15.6.2022. Article about the soon-to-be-opened stone and rock exhibit compiled by T. Öhman.
• Liikkanen L. A.: Sauna Marsiin. Saunalogia.fi, 31.5.2022.
• Jokiaho T.; Lappajärven törmäyskraatterin synty ja Kraatterijärvi Geopark tutuksi! Torstai-lehti, 31.3.2022, p. 4. Appeared online 29.3.2022. Article about T. Öhman’s forthcoming lecture about Lappajärvi impact crater.
• Wiltshear M.: Pyhävuori – the holy mountain of Alajärvi. Explore Finland Radio Show, episode 52, 17.2.2022. A podcast interview with T. Öhman about what to see at the Pyhävuori (”Holy Mountain”) region, the southeastern rim of the Lappajärvi impact crater.
• Oulun yliopisto: Tongan valtava merenalainen tulivuorenpurkaus havaittiin myös kosmisen hiukkassäteilyn avulla – Oulun yliopiston spinoff-yritys mukana kehittämässä menetelmää. University of Oulu, 26.1.2022. Also in English. Bulletin about the recent Tonga undersea volcanic eruption and muography with interview of M. Holma.
• Rantanen K.: Suunnistus sukelluksissa voi onnistua avaruudesta iskeytyvien myonien avulla, suomalaiset mukana kehittämässä laitteita. Helsingin Sanomat, 13.1.2022. Article about using muography in orienteering while scuba diving, with comments from M. Holma.
  • Article was translated to English, as Orienteering in diving can be successful with the help of muons striking from space, Finns involved in developing equipment. Pledge Times, 13.1.2022.

Popular science: Blog posts (2022)

• Öhman T.: Kuu elokuussa 2022. Hieman Kuusta, 27.6.2022. Blog post about lunar features and visibility in August 2022.
• Öhman T.: Kuu heinäkuussa 2022. Hieman Kuusta, 27.6.2022. Blog post about lunar features and visibility in July 2022.
• Öhman T.: Kuu kesäkuussa 2022. Hieman Kuusta, 3.6.2022. Blog post about lunar features and visibility in June 2022.
• Öhman T.: Tutankhamonin taivaalliset aarteet, osa 2. Kraatterin reunalta, 1.6.2022. Blog post about the celestial treasures of the pharaoh Tutankhamun. Appeared also in the Hieman Kuusta blog (2.6.2022).
• Öhman T.: Tutankhamonin taivaalliset aarteet, osa 1. Kraatterin reunalta, 31.5.2022. Blog post about the celestial treasures of the pharaoh Tutankhamun. Appeared also in the Hieman Kuusta blog (2.6.2022).
• Öhman T.: Harvinaisen näkymätön kuunpimennys. Hieman Kuusta, 14.5.2022. Blog post about the really poorly visible lunar eclipse.
• Öhman T.: Rikinkatkuinen henkäys ja harjanteiden synty Iossa. Kraatterin reunalta, 30.4.2022. Blog post about volcanism and ridges on Io, Jupiter’s moon.
• Öhman T.: Pluton vuoret ja kryovulkanismi. Kraatterin reunalta, 21.4.2022. Blog post about cryovolcanism on Pluto.
• Öhman T.: Kuu toukokuussa 2022. Hieman Kuusta, 12.4.2022. Data about the lunar libration and the rising, setting and culmination times of the Moon in May 2022.
• Öhman T.: Kuu kertoo, minne Aurinko menee. Hieman Kuusta, 3.4.2022. Blog post about the location and phase of the Moon with respect to the past or future location of the Sun in the sky.
• Öhman T.: Päivitystä libraatiokaavioihin. Hieman Kuusta, 2.4.2022. Blog post about lunar libration charts.
• Öhman T.: Kuu huhtikuussa 2022. Hieman Kuusta, 2.4.2022. Data about the lunar libration and the rising, setting and culmination times of the Moon in April 2022.
• Öhman T.: Kummat kiehkurat ja paluu Kuuhun. Kraatterin reunalta, 1.4.2022. Published also on the Hieman Kuusta blog on 2.4.2022. Blog post about lunar swirls.
• Öhman T.: Marsin pohjoinen valtameri – totta vai toiveajattelua? Kraatterin reunalta, 24.3.2022. Blog post about the Martian ocean hypothesis.
• Öhman T.: Kuu maaliskuussa 2022. Hieman Kuusta, 1.3.2022. Data about the lunar libration and the rising, setting and culmination times of the Moon in March 2022.
• Öhman T.: Pimeästä takapuolesta. Kraatterin reunalta, 28.2.2022. Published also on the Hieman Kuusta blog on 1.3.2022. Blog post about the terms “dark side” and “far side” of the Moon.
• Öhman T.: Törmätessä roiskuu: maapallon ensimmäinen sekundäärikraatterikenttä Wyomingissa. Kraatterin reunalta, 24.2.2022. Blog post about the Wyoming secondary crater field.
• Öhman T.: Kuu helmikuussa 2022. Hieman Kuusta, 2.2.2022. Data about the lunar libration and the rising, setting and culmination times of the Moon in February 2022.
• Öhman T.: Mikä Pluton sydäntä painaa? Kraatterin reunalta, 31.1.2022. Blog post about Pluto’s Sputnik Planitia and the tectonics of Sputnik basin.
• Öhman T.: Marsilaiset piparkakut. Kraatterin reunalta, 24.1.2022. Blog post about fluidised ejecta blankets of Martian impact craters.
• Öhman T.: Tammikuu 2022 kuvina. Hieman Kuusta, 11.1.2022. Blog post containing photos and commentary about the Moon in January 2022.
• Öhman T.: Kuu tammikuussa 2022. Hieman Kuusta, 2.1.2022. Blog post and data about the lunar libration and the rising, setting and culmination times of the Moon in January 2022.