Every time Venus passes the Earth, it shows the same face.

Greenland and Antarctica are melting - but how quickly and which areas are most affected? Nearly 20 years of satellite data provide key insights into these questions.

From lasers to rovers, the technology JPL develops for space often has unanticipated uses much closer to home.

New mapping of the giant planet's upper atmosphere reveals likely reason why it's so hot.

Among the five JPL-led efforts chosen, a concept to image distant Earth-like planets orbiting other stars has received a $2 million grant for further development.

A new JPL-led challenge is seeking ideas for scientific instruments that could fit inside a tiny payload no bigger than a bar of soap.

Not quite planets and not quite stars, brown dwarfs are cosmic in-betweeners. Learning about their atmospheres could help us understand giant planets around other stars.

With the Mars 2020 mission ramping up, the documentary - the first of four about past JPL missions to the Red Planet to be shown at Caltech - tells a gripping backstory.

In this time-lapse video taken at JPL, engineers move the Mars 2020 rover into a large vacuum chamber for testing in Mars-like environmental conditions.

The mission will study clouds and hazes in the atmospheres of planets outside our solar system, something that has only been done on a handful of exoplanets so far.