Caltech

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California supervolcano is cooling off but may still cause quakes.

"Hubbard excitons" could eventually lead to novel technologies

Scientists reinvented the technique to allow for printing objects a thousand times smaller: 150 nanometers.

The lunar alarm clock!

The Invar effect: A thermodynamic explanation.

Unusual white dwarf star is made of hydrogen on one side and helium on the other.

Inversely constructed 3D-patterned mid-infrared metaoptics.

Our planet's water must have arrived late in the history of Earth's formation.

A collective hum of gravitational waves from many pairs of merging black holes throughout the universe.

The waves oscillate very slowly over years and even decades.

The bio-inspired 'transformer' can move in a wide range of ways, saving energy and making it more versatile.

Wearable sensor detects internal inflammation.