Using state-of-the-art ab initio interaction-induced dipole and potential-energy surfaces for hydrogen-helium (H2-He) pairs, we compute the rototranslational collision-induced absorption coefficient at 40-400 K for frequencies covering 0-4000 cm-1.
Uranus
Posted inAriel, Astrochemistry, Astrogeology, Ice Giant, Icy Worlds, Imaging & Spectroscopy, Oberon, Press Release, Titania, Umbriel, Uranus
The Moons of Uranus Surprise Scientists
Scientists using NASA’s Hubble Space Telescope went looking for evidence of one phenomenon and found quite another. The research team studied the four largest moons of the ice giant Uranus, […]
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Ice Giant, Icy Worlds, Imaging & Spectroscopy, Press Release, Uranus
Using Stellar Occultation To Study The Atmosphere Of Ice Giant Uranus
When a planet’s orbit brings it between Earth and a distant star, it’s more than just a cosmic game of hide and seek. It’s an opportunity for NASA to improve […]
Posted inAtmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Ice Giant, Status Report, Uranus
Uranus Flagship Science-Driven Tour Design: Community Input Poll
The highest priority Planetary Flagship from the Planetary Science and Astrobiology Decadal Survey is the Uranus Orbiter and Probe.
Posted inAstrochemistry, Atmospheres, Climate, Weather, Exploration Gear & Tech, Gas Giants, Icy Worlds, Neptune, Status Report, Uranus
Ice Giants
Uranus and Neptune, the so-called “ice giants”, represent a fascinating class of planets. They are the outermost planets in the solar system with intermediate masses/sizes, complex non-polar magnetic fields, strong […]
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Ice Giant, Icy Worlds, Imaging & Spectroscopy, Press Release, Uranus, Water/Hycean Worlds & Oceanography
20-Year Hubble Study of Uranus Yields New Atmospheric Insights
The ice-giant planet Uranus, which travels around the Sun tipped on its side, is a weird and mysterious world. Now, in an unprecedented study spanning two decades, researchers using NASA’s […]
Posted inAriel, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, Miranda, Press Release, Uranus, Water/Hycean Worlds & Oceanography
Ocean Worlds: New Study Suggests Trench-Like Features on Uranus’ Moon Ariel May Be Windows to Its Interior
Last year, a study led by planetary scientist Richard Cartwright at the Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland, proposed that deposits of carbon dioxide ice and other […]
Posted inAstrogeology, Comets and Asteroids, Icy Worlds, Imaging & Spectroscopy, Impact events, Jupiter, Mapping, Geodesy, Cartography, Bathymetry, Meteorites & Asteroids, Saturn, Status Report, Uranus
The Current Cratering Rate on the Regular Satellites of Jupiter, Saturn, and Uranus
We aim to compute the impact rates for objects with a diameter of 1 km onto the regular satellites of Jupiter, Saturn and Uranus using our latest dynamical simulations of […]
Posted inAtmospheres, Climate, Weather, Ice Giant, Icy Worlds, Missions & Hardware, Status Report, Uranus
Interior and Gravity Field Models for Uranus Suggest Mixed-composition Interior: Implications for the Uranus Orbiter and Probe
The interior composition and structure of Uranus are ambiguous. It is unclear whether Uranus is composed of fully differentiated layers dominated by an icy mantle or has smooth compositional gradients.
Posted inAstronomy & Telescopes, Imaging & Spectroscopy, Jupiter, Neptune, Press Release, Saturn, Uranus
Hubble Celebrates A Decade Of Tracking Outer Planets
Encountering Neptune in 1989, NASA’s Voyager mission completed humankind’s first close-up exploration of the four giant outer planets of our solar system. Collectively, since their launch in 1977, the twin […]