When the sun unleashes major solar flares, erutions or particle streams, that baseline aurora activity amps up, with the northern lights visible farther south than its typical polar regions.

Dark energy that has a constant density and pressure would doom our cosmos to expand for all time until unbridgeable gulfs separate every particle from all the others ... cosmological mysteries. With ...

Rebecca Ramirez (she/her) is the founding producer of NPR's science podcast, Short Wave. It's a meditation in how to be a Swiss Army Knife, in that it involves a little of everything ...