Earth just got hit by a stealth solar storm no one saw coming

Earth just got hit by a stealth solar storm no one saw coming

A stealth solar storm hit Earth on Nov. 20. It arrived without warning and may have contributed to auroras visible at mid latitudes. This event didn't trigger a geomagnetic storm; however, such solar storms, or coronal mass ejections (CMEs), are still exciting because...

Canon 8×20 IS binocular review

Canon 8×20 IS binocular review

The Canon 8x20 IS binoculars may be one of the best image-stabilized binoculars we've tested and also sit within the best compact binoculars category, making them ideal for wildlife spotting. These are Canon's lightest image-stabilized binoculars, weighing in at only...

Are free radicals really that bad for you?

Are free radicals really that bad for you?

Free radicals have a terrible reputation. These reactive and unstable molecules have been associated with cancer, aging, and degenerative diseases such as Alzheimer's. Yet the body constantly produces free radicals as a key part of life-sustaining processes, such as...