ESA's Solar Orbiter passed through the tail of Comet Leonard on its way to the sun, sampling particles and taking images in visible and ultraviolet light.
Astronomers announced a new exomoon candidate orbiting an exoplanet about 5,400 light-years from Earth. It is the latest possible exomoon found so far.
New observations from an international team of astronomers have revealed a giant rugby ball-shaped exoplanet. It is the first such deformed exoplanet seen.