Hera is a planetary defense mission under development in the Space Safety and Security
Program of the European Space Agency for launch in 2024 October. It will rendezvous in …

Carbonaceous asteroids, such as (101955) Bennu, preserve material from the early Solar
System, including volatile compounds and organic molecules. We report spacecraft imaging …

Planetary defense efforts rely on estimates of the mechanical properties of asteroids, which
are difficult to constrain accurately from Earth. The mechanical properties of asteroid …

Asteroids smaller than 10 km are thought to be rubble piles formed from the reaccumulation
of fragments produced in the catastrophic disruption of parent bodies. Ground-based …

This paper summarizes the evidence for the optical effects of space weathering, as well as
the properties of the surface that control optical changes, on asteroid (101955) Bennu. First …

When the OSIRIS-REx spacecraft pressed its sample collection mechanism into the surface
of Bennu, it provided a direct test of the poorly understood near-subsurface physical …

Abstract The Double Asteroid Redirection Test (DART) spacecraft will impact into the
asteroid Dimorphos on 2022 September 26 as a test of the kinetic impactor technique for …

Images collected during NASA's Double Asteroid Redirection Test (DART) mission provide
the first resolved views of the Didymos binary asteroid system. These images reveal that the …

Spacecraft missions have observed regolith blankets of unconsolidated subcentimetre
particles on stony asteroids,–. Telescopic data have suggested the presence of regolith …

Abstract The Origins, Spectral Interpretation, Resource Identification, and Security–Regolith
Explorer (OSIRIS-REx) spacecraft mission characterized and collected a sample from …