Readers wondered if mayo qualifies as a non-Newtonian fluid, and X user @Lightning456243 asked how a quantum computer can identify its own errors.

Editor in chief Nancy Shute recounts the 50-year anniversary of the hominid's discovery, which upended the study of human evolution.

Rocks returned by China’s Chang’e-6 mission suggest volcanic activity just 2.8 billion years ago but lack telltale heat-generating elements.

The behemoth coral, discovered in October in the Solomon Islands, is longer than a blue whale and older than the United States.

Environmental DNA harvested from the ocean, land and air can help scientists monitor wildlife. The challenge is figuring out how to interpret this eDNA.

The new finding comes from an analysis of pesticide use and prostate cancer incidence in over 3,100 U.S. counties.

The detailed structure of a misfolded protein from a diseased deer could help explain why the disease hasn’t made the leap to humans.

Perhaps most importantly, Lucy’s discovery foreshadowed a series of fossil finds that filled in the scientific picture of her species. By 1978, enough evidence had accumulated to establish Lucy as the ...

A molecule in lizard saliva may make it easier to find certain tumors in the pancreas.

A contest to design a sound-only magic trick could help psychologists learn about differences between visual and auditory perception.

A solar wind event days before the NASA probe flyby in 1986 may have compressed the planet’s magnetosphere, making it look odder than it usually is.

Muon colliders could slam the subatomic particles together in hopes of unlocking physics secrets. Giving muons a speed boost is a crucial step.