Asteroids

Asteroid Dating ( 20 largest asteroids)

• 1801 – Ceres – 940 km
• 1802 – Pallas – 540 km
• 1807 – Vesta – 510 km
• 1849 – Hygeia – 410 km
• 1910 – Interamnia – 310 km
• 1861 – Cybele – 310 km
• 1868 – Europa – 280 km
• 1866 – Sylvia – 280 km
• 1804 – Juno – 275 km
• 1852 – Psyche – 265 km
• 1899 – Patientia – 265 km
• 1854 – Euphrosyne – 250 km
• 1851 – Eunomia – 245 km
• 1892 – Bamberga – 245 km
• 1868 – Camilla – 235 km
• 1904 – Herculina – 230 km
• 1857 – Doris – 225 km
• 1854 – Amphitrite – 225 km
• 1852 – Fortuna – 220 km

Carbon Dating

• Carbon dating 14, in the late 1940's Willard Libby discovered a way to determine the age of dead plants and animals remains.
• All living things are made of carbon. A very small amount of this carbon is carbon-14 a radioactive isotope. One a plant or animal dies, the carbon-14 in its body begins to disintegrate. Since we know how fast carbon-14 decays, we can determine the approximate age of organic matter.