- Understanding the geologic time scale and how to organize Earth’s history into a coherent timeline. MS-LS4-1: Analyze and interpret data for patterns in the fossil record that document the existence ...

Some quantum systems may have two arrows of time, one running forwards as usual and another moving backwards. This means that, at some extremely small scales, time may have the option of moving in ...

Recommended color coding of stages / F.M. Gradstein and J.G. Ogg -- Appendix 2. Orbital tuning calibrations and conversions for the Neogene period / L. Lourens ... [et al.] -- Appendix 3.

As climate change continues unabated, the goal is to examine technologies that could artificially cool the Earth “responsibly and ethically.” By Christopher Flavelle and David Gelles A British ...