Live coverage: NASA’s Juno spacecraft arrives at Jupiter

Astronomers searching for a hypothesised large planet in the outer solar system far beyond Pluto stumbled across 12 previously undetected moons orbiting Jupiter, pushing the giant planet’s total to a record 79.

This image taken by NASA’s Juno spacecraft of a mysterious dark spot on Jupiter seems to reveal a Jovian “galaxy” of swirling storms.

In the final months of Europe’s LISA Pathfinder mission, scientists have found an unexpected use for the trailblazing testbed for a future gravitational wave observatory by tracking the tiny dings made by microscopic particles that strike the spacecraft in deep space, exploiting the impacts to learn about the population of dust grains cast off by comets and asteroids across the solar system.