JWST Sees No Atmosphere on "Earthlike" TRAPPIST-1 Exoplanet
TRAPPIST-1b is probably an airless rock, but the same may not be true for its six Earth-sized siblings.....»»
Study raises questions about validity of standard model of solar flares
Solar flares are extremely intense events that occur in the sun's atmosphere, lasting anywhere from a few minutes to several hours. According to the standard flare model, the energy that triggers these explosions is transported by accelerated electro.....»»
High-resolution images of the sun show how flares impact the solar atmosphere
Solar flares are a fascinating thing and have a profound effect on what astronomers refer to as "space weather." These events vary with the sun's 11-year solar cycle, releasing immense amounts of radiation across the electromagnetic spectrum (from ex.....»»
Citizen science collaboration yields precise data on exoplanet WASP-77 A b
A planet swings in front of its star, dimming the starlight we see. Events like these, called transits, provide us with bounties of information about exoplanets—planets around stars other than the sun. But predicting when these special events occur.....»»
Scientists scan TRAPPIST-1 for technosignatures
If you are going to look for intelligent life beyond Earth, there are few better candidates than the TRAPPIST-1 star system. It isn't a perfect choice. Red dwarf stars like TRAPPIST-1 are notorious for emitting flares and hard X-rays in their youth,.....»»
Sea surface micro layer: Researchers study boundary between the ocean and the air
The boundary between the ocean and the atmosphere, where the air and sea interact, is known as the sea surface microlayer. Understanding how nutrients, pollutants and organic matter are exchanged between the air and the sea is also vital for better u.....»»
GM sees growth for CarBravo used-vehicle sales platform
About 45 percent of used vehicles sold through CarBravo would not have been certified before, including older vehicles and those from non-GM brands, and they're backed by GM factory warranties......»»
Landmark AI deal sees Hollywood giant Lionsgate provide library for AI training
Runway deal will create a Lionsgate AI video generator, but not everyone is happy. Enlarge (credit: Benj Edwards / Malte Mueller via Getty Images) On Wednesday, AI video synthesis firm Runway and entertainment company Li.....»»
Book Review: A Bold Profile of the James Webb Space Telescope
In Pillars of Creation, Richard Panek gets up close to the JWST.....»»
Project 2025 Would Drastically Cut Support for Carbon Removal
The Heritage Foundation’s plan for a potential Trump second term has little time for schemes to suck carbon dioxide out of the atmosphere......»»
Polaris Dawn crew member describes the dramatic ride home
A member of SpaceX’s Polaris Dawn mission has described what it was like aboard the Crew Dragon as it entered Earth’s atmosphere at high speed last weekend......»»
Astronomers discover new feature in exoplanet distribution that"s between the Neptunian Desert and Savanna
Astronomers have uncovered the "Neptunian Ridge," a newly identified feature in the distribution of exoplanets. This discovery, led by an international team including members of the University of Geneva, The NCCR PlanetS and the Centro de Astrobiolog.....»»
Polaris Dawn’s high-speed journey home captured in photo from ISS
A remarkable photo taken by an astronaut aboard the ISS shows SpaceX’s Polaris Dawn Crew Dragon capsule entering Earth’s atmosphere at high speed on Sunday......»»
So what are we to make of the highly ambitious, private Polaris spaceflight?
They flew high, they walked in space, and finally early on Sunday, they landed. Enlarge / Crew Dragon enters Earth's atmosphere on Sunday morning as recovery boats await. (credit: SpaceX) A white spacecraft, lightly toas.....»»
Exploring ternary metal sulfides as electrocatalysts for carbon dioxide reduction reactions
One of the most promising avenues for actively reducing CO2 levels in the atmosphere is recycling it into valuable chemicals via electrocatalytic CO2 reduction reactions. With a suitable electrocatalyst, this can be achieved under mild conditions and.....»»
Researchers identify novel approach to minimize nitrogen loss in crops
While agriculture producers apply nitrogen fertilizer to supply nutrients to their crops, they can't always keep those nutrients in the soil for maximum efficiency, often losing them into the atmosphere or water supply as nitrates and nitrous oxide......»»
Microbe dietary preferences found to influence effectiveness of carbon sequestration in deep ocean
The movement of carbon dioxide (CO2) from the surface of the ocean, where it is in active contact with the atmosphere, to the deep ocean, where it can be sequestered away for decades, centuries, or longer, depends on a number of seemingly small proce.....»»
NASA"s EZIE mission set for 2025 launch
In 2025, NASA will launch its first mission to image the magnetic fingerprint of intense electrical currents that flow high in our atmosphere when auroras shimmer above Earth's poles......»»
Pollution of the potent warming gas methane soars and people are mostly to blame
The amount and proportion of the powerful heat-trapping gas methane that humans spew into the atmosphere is rising, helping to turbocharge climate change, a new study finds......»»
Unprecedented heat wave on the Tibetan plateau: Study highlights land-atmosphere interactions
Heat waves are generally thought to occur in hot, lowland regions—but what happens when extreme heat strikes the frigid, high-altitude Tibetan Plateau? Is the definition of a heat wave the same at 5,000 meters above sea level as it is in the plains.....»»
New dense sub-Saturn exoplanet discovered
Using the Transiting Exoplanet Survey Satellite (TESS), astronomers from the Physical Research Laboratory (PRL) in Ahmedabad, India and elsewhere, have detected a new sub-Saturn exoplanet with a relatively high density. The finding was reported in a.....»»