Jupiter Accelerates Electrons to Near-Light Speed, Offering Clues to Cosmic Ray Origins
The giant planet’s bow shock isn’t just deflecting the solar wind, it’s acting as a powerful particle accelerator,…
Ultraviolet-Driven Atmospheric Degeneracies Challenge Conventional Biosignature Frameworks for Terrestrial Planets with Ultracool M Dwarf Hosts: An Archean-Analog TRAPPIST-1 e Case Study
Comparison of input SEDs used in this study and molecular photoabsorption cross sections relevant to Archean-analog photochemistry. The…
Predictive Rankings of the Probability for Temperate Terrestrial Worlds for the HWO ExEP Mission Star List
The simulated occurrence rates of planets in both simulated (blue) and known (orange) planetary systems around nearby stars.…
NASA’s Roman Mission Preps to Unveil New Populations of Faraway Worlds
This plot shows currently known exoplanets, with different categories highlighted. Roman will help fill in the bottom-right of…
Red Dwarf Stars Detected ‘Eating’ Earth-like Planets
This artist’s impression shows two Earth-sized worlds passing in front of their parent red dwarf star in the…
The Unique Ability Of The Hubble Space Telescope To Characterize Young Exoplanet Environments
Modified Pass et al. (2025) Figure 2 showing an updated Cosmic Shoreline for exoplanets orbiting full convective M…
Weighing Newborn Planets Using Their Dusty Fingerprints
Simulation of a planet embedded in a protoplanetary disc, causing disc material to pile up in a ring…
NASA Finds a “Goldilocks” Giant Planet Wrapped in Methane
Artist’s impression of a gas giant planet orbiting its distant host star. New research, led by astronomers at…
Super Jupiters Expose a Long Standing Space Mystery
One way gas giants form is through core accretion, where solid cores gradually grow in a disk by…
Webb Detects Methane in Atmosphere of Exo-Saturn TOI-199b
Using spectral data from the Near-Infrared Spectrograph (NIRSpec) onboard the NASA/ESA/CSA James Webb Space Telescope, astronomers analyzed the…
HWO Target Stars and Systems: Activity and Rotation Catalog (ARC) of Potential Target Stars for the Habitable Worlds Observatory
Upper panels: Equatorial rotational velocity (veq) vs. projected rotational velocity (v sin i) for stars in Tiers 1,…
Constraints On The Crystallinity Of Water Ice In Planet-forming Disks From Infrared Scattered-Light Spectra
Protoplanetary disk images (top row) and scattered-/transmitted-light spectra (bottom-left and bottom-middle) obtained from the radiative-transfer simulations, together with…