The universe

The BepiColombo probe's flybys of Mercury have revealed just how sharply and rapidly the planet's local environment changes in response to the solar wind.

China's Chang'e 4 rover Yutu 2 has been working on the far side of the moon for nearly six years. It was designed to operate for just three lunar days, or about three Earth months.

A low-density, weak-gravity region has been found below Olympus Mons and the Tharsis volcanoes, while Mars' northern hemisphere is littered with puzzling high-gravity structures beneath the surface.

Eleven objects found at the extremities of the solar system could mark the location of a 'Kuiper Belt 2.'

The secrets of dark matter might be hiding in the immense cosmic crashes that are colliding galaxy clusters.

Earth may have had a Saturn-like ring system long ago, created from the debris of a passing asteroid that our planet tore apart.

Scientists at NASA's Jet Propulsion Laboratory have recreated spider-like araneiform terrain, a geologic formation found on Mars, in a lab on Earth.

The most comprehensive map of clouds on Mars includes a variety of cloud patterns, including some that are unlike anything seen on Earth.

Astronomers have seen the largest jets ever found erupting from a black hole. The giant jet system Porphyrion is 23 million light-years long, equal to 140 side-by-side Milky Way galaxies.

NASA's Curiosity rover has captured a spectacular sight from the surface of Mars: The first-ever photo of Earth alongside the Red Planet's moon Phobos.