Super-puffs, an intriguing, growing class of exoplanets, are the objects with exceptionally large radii for their masses and thus correspondingly low densities....
Water makes up about 0.25% (almost three times that of the Sun) of the molecules in Jupiter’s atmospheric molecules at the gas giant’s equator, according...
Astronomers using data from ESA’s Gaia star-mapping satellite have discovered a newborn gaseous exoplanet closer to Earth than any other of similarly...
Using the 10-m Keck II telescope at the W.M. Keck Observatory and Subaru Telescope, a team of astronomers has studied the orbits of 27 long-period giant...
At the end of its mission in 2017, NASA’s Cassini spacecraft performed a set of ‘Grand Finale’ orbits bringing it closer to Saturn than ever before....
A new study, published in the journal Nature Astronomy, suggests that our young Solar System’s protoplanetary disk was divided into two regions: on the...
Using NASA’s Transiting Exoplanet Survey Satellite, the agency’s Spitzer Space Telescope and other facilities, astronomers have discovered a compact...
Using NASA’s Transiting Exoplanet Survey Satellite (TESS) and several ground-based telescopes, astronomers have observed the transits of two hot-Jupiter...
An international team of astronomers has discovered a warm giant exoplanet orbiting the bright star TOI-677.
An artist’s impression of the warm Jupiter...
NASA’s Juno spacecraft spied the new Jovian cyclone on November 3, 2019, during its 23rd science pass of the gas giant.
A series of JunoCam images from...
In a study published recently in the Astrophysical Journal Letters, a team of astronomers analyzed spectroscopic atmospheric data from 19 exoplanets, ranging...
There isn’t a strong correlation between gas giant and host star compositions when it comes to elements heavier than hydrogen and helium, according to...
Astronomers using the Subaru Telescope in Hawaii have found 20 new moons orbiting Saturn. The discovery brings the total number of known Saturnian moons...
Astronomers have discovered a massive exoplanet orbiting Gliese 3512 (GJ 3512), an M-dwarf star (red dwarf) located 31 light-years away. Dubbed Gliese...
Saturn is so beautiful that astronomers cannot resist using the NASA/ESA Hubble Space Telescope to take yearly snapshots of the gas giant when it is at...
A volcanically active rocky exomoon may orbit WASP-49b, a hot gas giant approximately 550 light-years away in the constellation of Lepus.
An artist’s...
The temperature on the nightsides of short-period gas giants (hot Jupiters) is surprisingly uniform, suggesting the dark sides of these exoplanets have...
Using data from several ground-based telescopes, astronomers found that a nearby star called HR 5183 hosts a giant planet with an orbital period of between...
