How can meteorites reveal the history of the early solar system?

Meteorites serve as "poor man’s space probes," providing essential evidence of the conditions and events that occurred during the birth and early evolution of the solar system. Because asteroids and comets are leftovers from the intermediate stages of planetary aggregation, they preserve material from the early solar nebula that larger bodies have since modified or destroyed.12

Meteorites reveal the history of the early solar system through several key mechanisms:

• Preservation of Ancient Material: Smaller bodies radiated heat efficiently, allowing their interiors to remain cool and preserve primitive dust and even presolar grains that predate the solar system.23
• Chronology via Radionuclides: Scientists use radiometric dating to determine the age of meteoritic components. Long-lived radionuclides provide absolute ages, while short-lived radionuclides—such as aluminum-26—act as "fingerprints" to date events occurring within the first few million years of the solar system's formation.14
• Evidence of Early Processes: The presence of refractory inclusions and chondrules in chondrites provides a record of high-temperature heating events in the solar nebula.13
• Geochemical Differentiation: By studying different types of meteorites—such as stony, iron, and stony iron meteorites—researchers can reconstruct the internal structure and thermal history of differentiated parent asteroids.54