The search for evidence of extraterrestrial life in our Solar System is currently guided by our
understanding of terrestrial biology and its associated biosignatures. The observed …

Although no known asteroid poses a threat to Earth for at least the next century, the
catalogue of near-Earth asteroids is incomplete for objects whose impacts would produce …

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 …

Abstract NASA'S Origins, Spectral Interpretation, Resource Identification and Security-
Regolith Explorer (OSIRIS-REx) spacecraft recently arrived at the near-Earth asteroid …

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 …

Early spectral data from the Origins, Spectral Interpretation, Resource Identification, and
Security-Regolith Explorer (OSIRIS-REx) mission reveal evidence for abundant hydrated …

In 2018, images were released of a planet being formed around the star PDS 70, offering a
tantalizing glimpse into how planets come into being. However, many questions remain …

Establishing the abundance and physical properties of regolith and boulders on asteroids is
crucial for understanding the formation and degradation mechanisms at work on their …

Small, kilometre-sized near-Earth asteroids are expected to have young and frequently
refreshed surfaces for two reasons: collisional disruptions are frequent in the main asteroid …

Abstract NASA's Double Asteroid Redirection Test (DART) mission was the first to
demonstrate asteroid deflection, and the mission's Level 1 requirements guided its planetary …