When the solar system first took up the task of building solid bodiesāsuch as planets, moons and protoplanetsāit basically had a choice between two ingredients: heat-forged chondrules, which were millimeter-sized bits of rock, and matrix, a fine-grained, coldā¦
When the solar system first took up the task of building solid bodiessuch as planets, moons and protoplanetsit basically had a choice between two ingredients: heat-forged chondrules, which were milliā¦ [+4349 chars]