Two new commentaries on a contested 2018 study about gender disparities in STEM fields clash over whether sex differences or social inequalities are to blame for the lack of women scientists and engineers.

This fish-inspired robot swims at greater speeds than previous ones.

The developers envision their device could be used to collect water samples in hazardous environments.

See a tiny, jellyfish-like robot swim, burrow, and carry beads.

Developers made an insect-like robot with two pairs of wings.

The robotic catheter can guide its own movements within the heart of a live mammal to the site of a leaky valve replacement.

Scientists are taking a close look at fish skeletons for inspiration to solve engineering problems. 

Scientists take a close look at metal alloys that form snowflake-like structures called crystalline dendrites.

3-D printed components allow researchers to construct custom-made instruments.