Iron meteorites show the first bodies of the early solar system were 83% to 92% dry rock, with water arriving millions of ...

Ancient iron meteorites reveal that some of the Solar System’s first solid bodies were built mostly from tiny heat-forged rock beads called chondrules, while water-rich dust was largely excluded. The ...

If the outer solar system’s first solid bodies had come with a recipe, it would have called for a generous helping of chondrules, millimeter-sized beads of rock forged by heat, and very little icy ...

When the solar system first took up the task of building solid bodies—such as planets, moons and protoplanets—it basically ...

Ancient grains inside one of the oldest known meteorites reveal that a surprisingly strong magnetic field existed during the solar system’s first 200,000 years. The discovery suggests magnetism worked ...

Before Earth or any other planet existed, the young sun was surrounded by a wide disk of gas and dust. Tiny pieces of ...