Astronomers using the NASA/ESA/CSA James Webb Space Telescope have detected water, carbon monoxide, and silicon monoxide in the dayside atmosphere of WASP-121b...
The Jovian aurorae are hundreds of times brighter than those seen on Earth, says a team of astronomers by University of Leicester’s Dr. Jonathan Nichols.
These...
Sub-Neptunes are high-occurrence exoplanets that have no solar system analog. Much smaller than gas giants and typically cooler than hot-Jupiter exoplanets,...
Astronomers using the Near-Infrared Camera (NIRCam) onboard the NASA/ESA/CSA James Webb Space Telescope have captured coronagraphic images of the HR 8799...
A team of astronomers from Taiwan, Canada, the United States, and France has observed 128 additional moons orbiting the gas giant Saturn, bringing its...
Astronomers may finally have settled the question of what is causing highly energetic X-rays from WD 2226-210, a white dwarf star located at the center...
Ultrahot Jupiters, an extreme class of planets not found in our Solar System, provide a unique window into atmospheric processes. Using four telescope...
WASP-132 is a unique multi-planet system in that both an inner rocky planet and the newly-discovered outer giant planet are in a system with a hot-Jupiter...
Astronomers have long thought that the upper clouds of Jupiter, which create the planet’s iconic pale brown belts, are made of frozen ammonia. But a...
Saturn’s icy rings could be much older than they appear due to their resistance to pollution from impacts with rocky debris.
Hyodo et al. suggest that...
The OPAL (Outer Planet Atmospheres Legacy) program obtains long-term baseline observations of Jupiter, Saturn, Uranus, and Neptune in order to understand...
Kepler-51 is a 500-million-year-old G-type star hosting four low density planets, according to a new paper published in the Astronomical Journal.
This...
These Earth-size ovals at Jupiter’s north and south poles are visible only at ultraviolet (UV) wavelengths, and appear and disappear seemingly at random,...
Using the Near-Infrared Imager and Slitless Spectrograph (NIRISS) instrument on the NASA/ESA/CSA James Webb Space Telescope, astronomers have discovered...
Astronomers using Webb’s MIRI (Mid-Infrared Instrument) have imaged Epsilon Indi Ab, a gas giant several times the mass of Jupiter located around 12...
Astronomers have discovered an exoplanet five times the mass of Jupiter that makes a very peculiar orbit around its star.
An artist’s impression of TIC...
Astronomers using the NASA/ESA/CSA James Webb Space Telescope have detected trace amounts of hydrogen sulfide in the atmosphere of the Jupiter-sized exoplanet...
Jupiter’s upper atmosphere is composed of a neutral thermosphere and charged ionosphere. Astronomers using the NASA/ESA/CSA James Webb Space Telescope...
