Mars may have once been home to large salty lakes, a new measurement of the expansion of the Universe reveals unexpected results, and a global extinction 13,000 years ago may have come from space.
The Cosmic Companion October 26, 2019
The Cosmic Companion October 26, 2019
The Cosmic Companion October 26, 2019
Mars may have once been home to large salty lakes, a new measurement of the expansion of the Universe reveals unexpected results, and a global extinction 13,000 years ago may have come from space.