Laboratory for Atmospheric and Space Physics

Discovery of a second-generation planet candidate accreting onto a white dwarf

Abstract Many white dwarfs accrete the debris of disrupted planetary bodies, detected in the form of metal enrichment in their atmospheres, dusty or gaseous circumstellar discs, and photometric transits from debris. The composition of accreted debris has been shown to be diverse...

IHDEA Standards Process WG Report 2026

A presentation on a draft document describing a shared framework for creating, reviewing, naming and publishing heliophysics technical documentation in IHDEA (International Heliophysics Data Environment Alliance)

Stem Cell Research in Space: From Experimental Culture to In-Space Biomanufacturing

Abstract Purpose of Review Stem cell research in space has progressed from feasibility demonstrations toward an increasingly mature translational platform supported by specialized flight hardware, standardized crew procedures, and growing access to Low Earth Orbit. This review ex...

Cassini CDA observes compositional segregation of Enceladus’ ice grains from slow freezing and fragmentation of oceanic spray

Salt-rich ice particles, termed Type 3, are a major compositional group within Enceladus’ plume and Saturn’s E ring and are thought to represent frozen micrometer-sized aerosolized droplets of Enceladus’ salty subsurface ocean. Here, we present an analysis on the basis of ≈1000 m...

Simulating Bouncing Packets Driven by Ducted Lightning‐Generated Whistlers: Comparison With SAMPEX Observations

Abstract Bouncing packets are quasi‐periodic microbursts separated by the electron bounce period. Solar Anomalous and Magnetospheric Particle Explorer observations revealed relativistic (>1 MeV) inner‐belt bouncing packets with “crown,” “decaying,” and “flat” envelopes. We test w...

Estimation of auroral emission altitude in the region of the ISS magnetic footprint during a relativistic electron precipitation event observed by ISS-CALET

We report a multi-MeV relativistic electron precipitation (REP) event as observed by the CALorimetric Electron Telescope and the Monitor of All-sky X-ray Image aboard the International Space Station, together with low-cost twin all-sky auroral imagers installed at Athabasca, Cana...

Observation-constrained clear-sky direct radiative forcing of black carbon containing aerosols reveals distinct radiative regimes across urban Asia

Black carbon (BC) aerosols exert a strong yet uncertain influence on the atmospheric energy balance, yet their radiative forcing estimates remain poorly constrained. Current top-down and bottom-up approaches remain limited in resolving how microphysical evolution and column prope...

Empirical flare energy limits for the largest historical sunspots

Extreme solar particle events (ESPEs) reveal that the Sun can occasionally produce eruptions significantly more energetic than those observed in the modern era. These events are thought to originate from powerful coronal mass ejections (CMEs), typically associated with large sola...

Resolving Convective‐Scale Cloud and Precipitation Structures in Tropical Cyclone Rainbands With Novel Raman Lidar Observations

Abstract Low‐level clouds in the tropical cyclone (TC) rainbands modulate the radial inflow of warm, moist boundary layer air, which can impact TC intensity. Yet, precisely measuring rainband cloud boundaries with existing remote sensing techniques remains a challenge. To address...

Leveraging existing electric propulsion capabilities for the Emirates Mission to the Asteroid Belt

The Emirates Mission to the Asteroid Belt (EMA), scheduled for launch in 2028, will conduct an eight-year, multi-target tour of seven main-belt asteroids, requiring over 10 km/s total delta-v and operations out to 3 AU. To meet these demands, the Laboratory for Atmospheric and Sp...

Plasma wave observations from Juno spacecraft at the Jovian bow shock

Recent observations of Jupiter’s bow shock have provided new insights into the energy dissipation mechanisms associated with bow shocks of outer planets. At greater distances from the Sun, the typically increasing super-Alfvénic nature of the solar wind leads to higher-energy bow...