All articles tagged with #atmosphere
Bluesky rolled out Attie, an AI app described as a user-customizable feed builder on top of its Atmosphere protocol, but the move has sparked swift backlash from its anti-AI user base. Bluesky officials frame Attie as separate from the main app and suggest it could be monetized later, while some users question the feature's purpose and utility, complicating its adoption ahead of potential public release.
Two decades-spanning observations from JWST (infrared) and Hubble (visible) provide the most comprehensive, height-resolved view of Saturn to date, capturing the iconic north-polar hexagon and the infrared glow of its rings while revealing how Saturn’s winds and megastorms vary with altitude. The data help scientists understand the planet’s atmospheric dynamics and evolution, with the north pole about to enter 15 years of winter darkness, limiting future high‑resolution views until the 2040s.
Astronomers using the James Webb Space Telescope show Saturn’s apparent, inconsistent rotation is an illusion created by a self-sustaining loop between auroral heating and the planet’s upper atmosphere. By tracking the infrared glow of the H3+ molecule across Saturn’s northern aurora for a full Saturnian day, researchers mapped temperature and winds, revealing that auroral heating drives winds which power currents that sustain the aurora—effectively a planetary heat pump. This two-way coupling between atmosphere and magnetosphere could change how scientists interpret signals from gas giants and exoplanets.
A localized Martian Year 37 dust storm lifted water vapor into the middle atmosphere at levels up to ten times typical, with hydrogen at the exobase rising about 2.5×. This suggests small, regional storms contribute to Mars’s long-term water loss and challenges the idea that southern-summer global events were the main driver, using data from ExoMars TGO, MRO, and the Emirates Mars Mission.
New NASA Juno data suggest Jupiter’s lightning could be up to a million times more powerful than Earth’s, inferred from radio-emission measurements. The study highlights how Jupiter’s hydrogen-rich atmosphere and towering, long-lasting storms—including months-long 'stealth' storms—may amplify lightning energy, offering new insights into the gas giant’s weather and atmospheric dynamics.
NASA says the ISS detected a previously unknown atmospheric phenomenon—ripples in the mesosphere about 55 miles up—during Hurricane Helene. The signals, picked up by NASA's Atmospheric Wave Instrument (AWE) and supported by AMTM observations, link ground storms to upper-atmosphere waves with potential implications for satellites and communications.
NASA released a new composite portrait of Saturn created by combining infrared data from the James Webb Space Telescope with visible/ultraviolet data from the Hubble Space Telescope, producing a layered, multi‑wavelength view that reveals Saturn’s atmospheric structure, jets, storms, potential auroral activity, and detailed ring features—showing how merging observations from multiple telescopes yields a fuller understanding of the planet’s dynamic climate and rings.
UIUC researchers using a Plasmatron X wind tunnel found that heat-shield ablation depends on atmospheric composition: in oxygen-rich environments ablation erodes the surface steadily, but when oxygen is absent the process becomes unsteady with intermittent, sometimes violent particle bursts. This “breathing” behavior affects shield performance and has implications for future missions like Dragonfly to Titan, whose nitrogen–methane atmosphere differs from Earth’s.
Fatal Frame II: Crimson Butterfly Remake on Switch 2 modernizes the PS2 classic with an over-the-shoulder camera, new locations, and side stories that deepen the lore, delivering strong atmosphere and tense, photography-based combat. However, sluggish enemy encounters, a weak-feeling camera early on, and persistent performance issues (notably a capped 30fps and pop-in) can deflate the mood. It’s a solid but uneven remake that fans will appreciate for its mood and ideas, while newcomers may want to explore other modern horror titles first and temper expectations. Score: 7/10.
Astronauts aboard the ISS use high-speed cameras and the Atmosphere–Space Interactions Monitor to document rare high‑altitude lightning—blue jets, red sprites and ELVES. The observations shed light on how transient luminous events affect radio communications, aviation safety and upper-atmosphere chemistry, and future CubeSats like Light‑1 aim to map gamma-ray flashes and other TLEs for better forecasting.
European researchers using LiDAR traced a SpaceX Falcon 9 first-stage re-entry, finding about 30 kilograms of lithium deposited in the upper atmosphere—ten times the normal daily input—alongside aluminum oxide. The event highlights potential shifts in atmospheric chemistry and pollution from rocket traffic as satellite constellations grow, with implications for ozone chemistry and ground-based astronomy.
NASA’s James Webb Space Telescope captured Uranus’ upper atmosphere for nearly a full rotation, delivering the most detailed 3D view of its ionosphere and how energy moves through the atmosphere, where auroras form under the planet’s unusually tilted magnetic field, and it reinforces ideas about ongoing atmospheric cooling—while highlighting the uncertain outlook for a future Uranus mission.
Researchers warn that the rapid push to satellite mega-constellations—SpaceX and other operators planning up to a million satellites—could cause vast amounts of debris to re-enter and burn up in the upper atmosphere, releasing alumina and other particulates that heat the atmosphere and deplete ozone, with potentially lasting climate impacts. Ground debris and casualty risks rise as more satellites are launched, and a million-satellite scale could significantly alter atmospheric chemistry. The piece calls for global regulation and a defined atmospheric carrying capacity for launches and re-entries, plus full lifecycle environmental assessments, urging SpaceX to take a leadership role.
JWST mapped Uranus's upper atmosphere during a ~15-hour rotation, revealing two bright auroral belts around the planet's magnetic poles and a mid-latitude depletion region, along with a three-dimensional view of ion temperature and density up to about 5,000 km above the cloud tops. The data show Uranus’s highly tilted magnetosphere drives distinctive auroral patterns and that the atmosphere has cooled since the 1990s, offering clues about ice giants and exoplanet atmospheres.
New research links an intense regional dust storm in Mars' northern summer to a surge of water vapor into the upper atmosphere, boosting hydrogen escape and contributing to the planet’s long-term water loss. Observations from the 2022-2023 Martian year show water vapor up to ten times typical levels and hydrogen at the exobase about 2.5 times higher than in previous years, indicating that short, localized events can influence Mars’ climate evolution as much as global storms, challenging earlier emphasis on southern summer dynamics.