Spectrometers

The first spacecraft to orbit Jupiter discovers evidence of an ocean inside Europa.

The telescope that rewrote astronomy, saved in orbit by five servicing missions.

Airbags bounce a lander onto Mars carrying Sojourner, the first rover on another planet.

Thirteen years at Saturn, and the first landing on a moon of another planet.

A 90-day rover mission that lasted six years and found evidence of ancient hot springs on Mars.

The record-breaking rover drives a marathon across Mars over nearly 15 years.

The fastest launch in history delivers the first close-up look at Pluto.

An orbiter solves the mystery of how Mars lost its atmosphere to the solar wind.

A seven-year round trip brings back pristine samples of asteroid Bennu.

The largest planetary spacecraft NASA has ever built heads for Jupiter’s ocean moon.