The Voyager spacecraft have left the heliosphere and entered the interstellar medium,
making the first observations of the termination shock, heliosheath, and heliopause. New …

Interstellar pickup ions are an ubiquitous and thermodynamically important component of
the solar wind plasma in the heliosphere. These PUIs are born from the ionization of the …

Interstellar neutral atoms, unlike charged particles, freely penetrate the heliosphere,
allowing us to sample the physical state of the interstellar matter directly. Most interstellar …

In this study, we extend the prior interstellar pickup ion (PUI) observations from the Solar
Wind Around Pluto (SWAP) instrument on New Horizons out to nearly 47 au—essentially …

We discuss observations of the journey throughout the Solar System of a large
interplanetary coronal mass ejection (ICME) that was ejected at the Sun on 14 October …

This study provides a deeper understanding of how the solar wind evolves with increasing
distance from the Sun as it encounters an increasing amount of interstellar material. This …

Charon, Pluto's largest moon, has been extensively studied, with research focusing on its
primitive composition and changes due to radiation and photolysis. However, spectral data …

We provide the first direct observations of interstellar H+ and He+ pickup ions in the solar
wind from 22 to 38 au. We use the Vasyliunas and Siscoe model functional form to quantify …

This study reports the first high-time-resolution observations of interstellar pickup ions (PUIs)
in the outer heliosphere, including the first high-resolution observations of PUIs mediating …

The central objective of the New Horizons prime mission was to make the first exploration of
Pluto and its system of moons. Following that, New Horizons has been approved for its first …