Scientists may have uncovered the oldest evidence of a meteoroid hitting Earth ever

A fiery meteor flies through space towards planet Earth.

Scientists in Australia have unearthed 3.48 billion-year-old rock fragments that may be the earliest evidence of a meteorite crashing into Earth.

The fragments, known as spherules, may have formed when the meteoroid slammed into the ground, spraying melted rock into the air. This melted rock then cooled and hardened into pinhead-size beads that became buried over the eons.