Found in Morocco in 2014, weighing 54.8g. Single flattened spherical stone covered by fusion crust. Contains 85% olivine in small, mildly forsteritic grains
Latitude measures north-south distance from equator, longitude east-west from prime meridian. Each city has unique latitude and longitude coordinates. One degree latitude equals about 111 kilometers on Earth's surface
Horizontal coordinate system describes positions of celestial objects using altitude and azimuth. System ignores distance as it focuses on sky location rather than space depth. Sky forms celestial sphere with observer at center
Cosmic rays are high-energy particles moving through space at near light speed. About 99% are bare atomic nuclei, 1% are electrons. Primary cosmic rays originate from Sun, galaxy, and distant galaxies. About 90% are protons, 9% are alpha particles, 1% are heavier nuclei
Magnetosphere is a region surrounding astronomical objects affected by their magnetic field. Created by celestial bodies with active interior dynamos. Planets with active magnetospheres can block solar and cosmic radiation
Earth has two main radiation belts extending from 640 to 58,000 km above surface. Belts trap energetic charged particles from solar wind and cosmic rays. Belts are confined to 65° on either side of celestial equator