Scientific American.com

Should you take vitamin C or zinc when you are sick with a common cold or influenza? Immunologist Zachary Rubin explains which at-home remedies actually help.

Former NASA officials warn that the U.S. looks poised to lose its self-declared race to beat China to the moon

For microscopic worms, physical laws we seldom notice take on life-or-death importance

Uncovering the CIA’s Kryptos puzzle took three parts math and one part sleuthing

“Quantum echoes” rippling through Google’s quantum computer chip Willow could lead to advances in molecular chemistry and the physics of black holes

Australian “sleepy” lizards are not so sleepy when it comes to fire

The planet’s brightness is dimming—changing rainfall, circulation and temperature

The words we choose when apologizing—especially longer, effortful ones—can signal sincerity and make our apologies feel more authentic.

An electronic retinal implant has improved vision in people with age-related macular degeneration—but it isn’t a full restoration, and it didn’t improve participants’ quality of life

Massive marches nationwide in the U.S. marked a turn against an increasing acceptance of political violence among protesters, report sociologists

Telling the same story in different ways can change the brain networks that the listener uses to form memories

A new study finds that even elite endurance athletes run up against a hard metabolic ceiling

A special class of immune proteins protect us from pathogens but also drive inflammation and cell death

A new WHO report warns of rising antimicrobial resistance, and researchers uncover satellite data leaks and insect surprises.

The FDA wants to reevaluate the use of aluminum adjuvants despite a long record of safe use in vaccines

Respiratory syncytial virus (RSV) can be life-threatening, but there are new treatments to prevent and treat the disease.