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Early Solar System Evolution Lab
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The lab explores the birth and evolution of the solar system through samples from meteorites and asteroids.
AboutAbout the lab
Approaching the origin of the solar system through samples from meteorites and space probes
The Early Solar System Evolution Lab studies when, where, and how our solar system was born.
Through analytical and recreation experiments, the lab examines primitive planetary materials such as meteorites originating from asteroids, interplanetary dust originating from comets, and samples brought back by space probes.
Using clues such as the characteristics of minerals and the isotopic and noble gas compositions, the lab aims to clarify the origin of the solar system and the path of its early evolution.
Key terms
- Protosolar nebula
- The cloud of gas and dust that existed when the solar system was born. The solid particles that became the materials of planets formed within it
- Chondrule
- A solid particle, roughly 1 mm to 1 cm in diameter, found in meteorites. It formed through a high-temperature process exceeding 1,000°C
- CAI
- Short for calcium-aluminum-rich inclusion. Like chondrules, it is a solid particle that formed in the nebula through a high-temperature process
ResearchResearch themes
Small bodies of the solar system, such as asteroids and comets, retain a record of the time when the solar system formed. The lab analyzes materials from these bodies and also conducts recreation experiments to study the origin and early evolution of the solar system.
*Illustrative imageHow solid particles formed in the nebula
The lab investigates at what stage the solid particles that became the materials of planets formed in the protosolar nebula, 4.6 billion years ago when the solar system was born. It explores high-temperature particles such as chondrules and CAIs by analyzing meteorites and cometary dust.
*Illustrative imageFormation and evolution of water-bearing small bodies
The lab studies the formation and evolution of the small bodies that formed in the nebula, using the mineralogy and the elemental and isotopic compositions of primitive meteorites, interplanetary dust particles, and the Itokawa samples collected by Hayabusa. It pays particular attention to bodies that contain water.
*Illustrative imageAnalysis of samples returned from asteroids
The lab studies samples that space probes brought back from asteroids. The results can be compared directly with the analyses of meteorites and with measurements of asteroid surface spectra. The targets are samples from Itokawa and from Ryugu, a C-type asteroid thought to retain hydrated minerals and organic matter.
MembersFaculty
The members of the Early Solar System Evolution Lab are a Professor, a Lecturer, an Assistant Professor, postdoctoral researchers, and PhD, master's, and undergraduate students.
- ProfessorTomoki Nakamura
- LecturerDaisuke Nakashima
- Assistant ProfessorMegumi Matsumoto
- LecturerDriss Takir
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Northwest Africa (NWA) 2224 Meteorite Thin Section” Solaranamnesis / CC0 (cropped)
- How solid particles formed in the nebula: “Protoplanetary Disk ( )” geckzilla / CC BY 2.0 (cropped)
- Formation and evolution of water-bearing small bodies: “Asteroid (25143) Itokawa seen in close-up (eso1405b)” JAXA / CC BY 4.0 (cropped)
- Analysis of samples returned from asteroids: “Model of Sample Container P4104177” Kestrel / CC BY-SA 4.0 (cropped)
- Related lab (Planetary Organic Geochemistry Lab): “Kolang Meteorite” Ahmad Fairuz / CC BY-SA 4.0 (cropped)
- Related lab (Quantum Beam Earth Science Lab): “U.S. Department of Energy - Science - )” U.S. Department of Energy from United States / Public domain (cropped)
- Related lab (Resources and Environmental Geochemistry Lab): “Analyse des éléments chimiques dans l'eau (Ifremer )” Stephane Lesbats / CC BY 4.0 (cropped)
- Related lab (Mineralogy Lab): “Natural Mineral Crystal Display” QueenCityCebu / CC BY-SA 4.0 (cropped)
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