Read article: ‘Super-puff’ exoplanets put a ring on it Planetary science Research update ‘Super-puff’ exoplanets put a ring on it The unusually low density of some exoplanets may be due to Saturn-like rings rather than clouds of gas
Read article: Iron rain on exoplanet is driven by huge extremes in temperature Planetary science Research update Iron rain on exoplanet is driven by huge extremes in temperature Exotic chemistry plays out in the atmospheres of hot gas giants
Read article: China’s rover probes deep below the surface of the far side of the Moon Planetary science Research update China’s rover probes deep below the surface of the far side of the Moon Lunar regolith could hold secrets of solar and galactic evolution
Read article: Ancient rings surrounding the Sun could have divided the solar system Planetary science Research update Ancient rings surrounding the Sun could have divided the solar system Clear distinction between rocky planet and gas giants explained by new study
Read article: OSIRIS-REx spacecraft spots particles ejected from asteroid and selects landing spot Planetary science Research update OSIRIS-REx spacecraft spots particles ejected from asteroid and selects landing spot Observations suggest that other asteroids could also be actively emitting particles
Read article: A decade of Physics World breakthroughs: 2014 – landing a spacecraft on a comet Planetary science Blog A decade of Physics World breakthroughs: 2014 – landing a spacecraft on a comet Margaret Harris relives the nerve-wracking moment when the Philae lander touched down on the comet 67P/Churyumov–Gerasimenko, Physics World's Breakthrough of the Year in 2014
Read article: First solar system solids formed much more rapidly than previously thought Materials Research update First solar system solids formed much more rapidly than previously thought New measurements point to a formation period of days rather than thousands of years
Read article: Giant exoplanet orbiting tiny star defies current theory of planet formation Planetary science Research update Giant exoplanet orbiting tiny star defies current theory of planet formation Cold, large protoplanetary discs could be more stable than previously thought
Read article: Water vapour is spotted on a distant rocky planet Planetary science Research update Water vapour is spotted on a distant rocky planet K2-18b is in the habitable zone of a red-dwarf star
Read article: Moon of many faces Planetary science Blog Moon of many faces Sarah Tesh picks out some alternative views of the Moon
Physics World podcast Explore our two regular podcast series, Physics World Weekly and Physics World Stories