Portside

The Earth’s magnetic field is far from constant. We can track its shifts in rocks that melt and then resolidify. Archaeological finds containing once-burned rocks can be precisely dated using this method. By utilizing the ancient orientation of the Earth’s magnetic field, scientists have been able to piece together the history of military conquests in ancient Judea.

Before we shrug off the latest achievement as just another small step on a long road, consider the miles we’ve come since the idea of tapping the power of the sun was first conceived.

How, and whether, to keep atomic time in sync with Earth's rotation is still up for debate.

Based on data since 2000 alone, global warming is still occurring at a whopping 7-sigma significance. How hot will planet Earth get?

They say that nobody understands quantum mechanics. But thanks to these three pioneers in quantum entanglement, perhaps we do.

In private, many physicists admit they do not believe the particles they are paid to search for exist – they do it because their colleagues are doing it

Remembering Frank Drake, who transformed the search for alien life and extraterrestrial intelligence into a full-fledged scientific endeavor.

Freedom Dreams: Black Women and the Student Debt Crisis. With Indictments Looming, It's Time To Have 'The Talk' With Trump Supporters. America’s Last Affordable Housing. A Giant Laser Simulates a Planet’s Core. Amazon Workers Stage Mass Walkout.