Research reveals how asteroid strikes could have triggered life on Earth
According to a Southwest Research Institute study, early asteroid collisions might have been the catalyst for life on our planet. Following Earth's formation roughly 4.5 billion years ago, the globe experienced a phase of heavy asteroid strikes. These events cracked the Earth's crust, forming porous channels beneath the surface that enabled water to flow through the planet's outer layers, which helped foster the right environment for life to develop.