Absorption Spectroscopy

New observations by the Webb space telescope show that the giant exoplanet WASP-107 b has an asymmetric atmosphere between its western and eastern hemispheres. The post Puffy exoplanet WASP-107 b has an asymmetric atmosphere first appeared on EarthSky.

The atmosphere of WASP-107b has east-west asymmetry, meaning its atmosphere is uneven at the edges

In October 2022, astronomers were stunned by what was quickly dubbed the BOAT — the brightest-of-all-time gamma-ray burst (GRB). Now an international science team reports that data from NASA's Fermi Gamma-ray Space Telescope reveals a feature never seen before. "A few minutes after the BOAT erupted, Fermi's Gamma-ray Burst Monitor recorded an unusual energy peak […]

Perfluoroalkyl substances (PFAS), nicknamed "forever chemicals," pose a growing environmental and health threat. Since the invention of Teflon in 1938, PFAS and perfluorinated polymers or PFs have been widely used for their exceptional stability and resistance to water and heat.

A planet relatively close to Earth could be the first ever detected with a potentially life-sustaining liquid ocean outside our Solar System, according to scientists using the James Webb space telescope.

And it's only 48 light-years away.

The bioactivity of most near-infrared II (NIRII) fluorophores are limited, thereby conflicting the achievement of strong fluorescence and high catalytic activities, due to a lack of free electrons in the method.

Passive mode-locked technology utilizes saturable absorbers' nonlinear absorption effect to regulate the cavity's loss and phase to generate mode-locked pulses. Graphene has a unique energy bandgap structure, a low absorption coefficient, a considerable modulation depth, and an ultrawide operating spectral range (300–2,500 nm).

Just because there's no mini-Neptune in our Solar System doesn't mean they're not common.

Hints of water vapor on a world called GJ 486 b could just as well come from the planet's host star

JILA researchers have upgraded a breathalyzer based on Nobel Prize-winning frequency-comb technology and combined it with machine learning to detect SARS-CoV-2 infection with excellent accuracy in 170 volunteer subjects. Their achievement represents the first real-world test of the technology's capability to diagnose disease in exhaled human breath.

Scientists think they've found a way to harvest more electricity from plants, a finding that could ripple out to other renewable energy technologies.

Photosynthesis drives all life on Earth. Complex processes are required for the sunlight-powered conversion of carbon dioxide and water to energy-rich sugar and oxygen. These processes are driven by two protein complexes, photosystems I and II. In photosystem I, sunlight is used with an efficiency of almost 100%. Here a complex network of 288 chlorophylls plays the decisive role.

Researchers have 'hacked' the earliest stages of photosynthesis, the natural machine that powers the vast majority of life on Earth, and discovered new ways to extract energy from the process, a finding that could lead to new ways of generating clean fuel and renewable energy.

Nearly eight years after its historic Pluto flyby, NASA's New Horizons probe is getting ready for another round of observations made from the icy edge of the solar system—and this time, its field of view will range from Uranus and Neptune to the cosmic background far beyond our galaxy.

Astronomers from the Leibniz Institute for Astrophysics Potsdam (AIP) and the Vatican Observatory (VO) teamed up to spectroscopically survey more than 1,000 bright stars that potentially host exoplanets.

Blood glucose monitoring is one of the most-requested Apple Watch features — and Apple just took a big toward making it a reality.

The compound Salen effectively binds to a number of SARS_CoV_2, the virus that causes COVID-19, proteins. The findings pave the way to developing new therapeutics to fight coronavirus.

Researchers have demonstrated that a solid can exhibit an enhanced nonlinear optical phenomenon usually seen only in cold atomic gases.

Astronomers have analyzed the masses and radii of all known small transiting exoplanets around red dwarfs, identifying three populations: rocky, water-rich, and gas-rich.