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Hibiya Lab
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The lab analyzes meteorites and rocks to explore the origins of the solar system and Earth.
AboutAbout the lab
Uncovering the origin of the solar system and the evolution of matter
Hibiya Lab studies how the solar system was born and how planets such as Earth formed, from the perspective of the evolution of matter.
Using knowledge of isotope science, chronology, and mineral chemistry, the lab examines meteorites that fall to Earth as well as rocks from Earth itself.
By handling material that came from space firsthand, the lab investigates how Earth and the solar system came to be 4.5 billion years ago.
Key terms
- Isotope
- Atoms of the same element that differ in mass (number of neutrons). Differences in their ratios reveal the origin and age of materials.
- Protoplanetary disk
- A disk of gas and dust orbiting a newly formed star, in which planets are formed.
- Sample return
- When a spacecraft collects samples from an asteroid or other body and brings them back to Earth.
ResearchResearch themes
The lab aims to solve the mystery of how the solar system was born and how this led to the formation of planets, including Earth, by studying the evolution of matter. Using knowledge of isotope science, chronology, and mineral chemistry, the lab examines meteorites and rocks from Earth.
*Illustrative imageEvolution of Matter at the Birth of the Solar System
Through isotope analysis with mass spectrometers, age dating, and microscope observation of meteorites and the tiny solid grains within them, the lab seeks to clarify what types of stars surrounded the solar system when it was born, and how matter evolved in the protoplanetary disk.
*Illustrative imageEvolution of Matter After Earth Formed
The lab explores the origins of the materials that made up Earth from the perspective of cosmochemistry. Recently, it has been studying igneous rocks that came from the deep mantle and geological layers formed by meteorite impacts to learn what was happening outside Earth during the period of Earth's formation and the emergence of life.
*Illustrative imageAnalytical Methods for Sample Return
The lab takes part in international exploration missions and develops mass spectrometers and analytical methods to extract as much chemical information as possible from samples that will be brought back in the future. It is also pursuing fundamental research that compares meteorite analyses with observational data from exploration missions.
MembersFaculty
- Associate ProfessorYuki HibiyaPublications ↗
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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: “Carbonaceous chondrite (Allende Meteorite) ( Ga) 9” James St. John / CC BY 2.0 (cropped)
- Evolution of Matter at the Birth of the Solar System: “Hart CK3 Chondrule-5mmFOV-01” North Creaton / CC BY-SA 4.0 (cropped)
- Evolution of Matter After Earth Formed: “Cretaceous-Tertiary (K-T) boundary clay (65 Ma, Quipar-Jorquera Formation; Agost-Castalia Road, southeastern Spain) ( )” James St. John / CC BY 2.0 (cropped)
- Analytical Methods for Sample Return: “Thermal ionization mass spectrometer” Radiogenic / CC0 (cropped)
- Related lab (角野・
日比谷研究室): “Octahedral diamond (Mir Kimberlite; Mirnyy, Siberia, Russia) )” James St. John / CC BY 2.0 (cropped) - Related lab (小宮研究室): “Nuvvuagittuq belt rocks” NASA / Public domain (cropped)
- Related lab (鈴木建研究室
（宇宙物理／Takeru K. Suzuki Lab） ): “2024 Total Solar Eclipse Corona” Brucewaters / CC BY 4.0 (cropped) - Related lab (江守研究室): “20190705 Warming stripes - Berkeley Earth (world) - avg above- and below-ice readings” RCraig09 / CC BY-SA 4.0 (cropped)
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