Copper Harbor shows you in spectacular fashion. Perched at the northernmost tip of Michigan’s Keweenaw Peninsula, this tiny village marks the end of US-41. The next stop north is Canada, with only the ...

The Vera Rubin Observatory is expected to discover 20 billion new galaxies over the next decade. This image shows another ...

Galaxies shine in a rainbow of emissions from gas, dust, and stars. Each of these building blocks emits light at specific ...

Red sprites hover between 40 and 55 miles high. Up there, the air is thin, so electric fields can spark gigantic filaments ...