Webb reveals an exoplanet atmosphere as never seen before

Science & Exploration 11/24/2022 637 views 26 likes The NASA/ESA/CSA James Webb Space Telescope just scored another first: a molecular and chemical portrait of a distant world’s skies. While Webb and other space telescopes, including the NASA/ESA Hubble Space Telescope, have previously revealed isolated components of this heated planet’s atmosphere, the new readings provide a … Read more

New Observations Confirm That a Magnetar Has a Solid Surface and No Atmosphere

Can a star have a solid surface? It might sound counterintuitive. But human intuition is a response to our evolution on Earth, where up is up, down is down, and there are three states of matter. Intuition fails when it confronts the cosmos. Magnetars are dead stars with intense magnetic fields, the most intense we … Read more

The Heaviest Element Ever Seen in an Exoplanet’s Atmosphere: Barium

Astronomers have spotted barium in the atmosphere of a distant exoplanet. With its 56 protons, you have to run your finger further down the periodic table than astronomers usually do to find barium. What does finding such a heavy element in an exoplanet atmosphere mean? It means we’re still learning how strange exoplanets can be. … Read more

JWST Finds a Clear, Unambiguous Signal for Carbon Dioxide in an Exoplanet’s Atmosphere

An early – and exciting — science result from the James Webb Space Telescope (JWST) was announced today: the first unambiguous detection of carbon dioxide in the atmosphere of an exoplanet. This is the first detailed evidence for carbon dioxide ever detected in a planet outside our Solar System. An artist’s impression showing what the … Read more

Webb detects carbon dioxide in exoplanet atmosphere

Science & Exploration 25/08/2022 3 views 0 likes The NASA/ESA/CSA James Webb Space Telescope has found definitive evidence for carbon dioxide in the atmosphere of a gas giant planet orbiting a Sun-like star 700 light-years away. The result provides important insights into the composition and formation of the planet, and is indicative of Webb’s ability … Read more

How monsoon winds impact climate change by transporting pollutants into the upper atmosphere

Credit: Unsplash/CC0 Public Domain While the Asian monsoon brings rain that is vital for the agricultural economy of the vast region, it is also known to suck up into the upper atmosphere chemical pollutants that accelerate climate change. Scientists are eagerly awaiting the results of a US-led international project that seeks to confirm earlier findings … Read more

The Moon Could Have Gathered Some of its Water from the Earth’s Atmosphere

Our Moon is a fascinating world that has captivated us since time immemorial. Long before the first telescope was invented, ancient humans used the Moon as a calendar in the sky, with evidence that lunar timekeeping was around as early as 25,000, 30,000, and even 35,000 years before the present. Long before humanity had written … Read more

Astronomers Caught Betelgeuse Just Before it Started Dimming and Might Have Seen a Pressure Wave Rippling Through its Atmosphere

A couple of years ago, Betelgeuse generated much interest when it started dimming. That caught the attention of astronomers worldwide, who tried to understand what was happening. Was it about to go supernova? Evidence showed that dust was the most likely culprit for the red supergiant’s dimming, though there are still questions. A new study … Read more

NASA’s Davinci mission to take the plunge through massive atmosphere of Venus — ScienceDaily

In a recently published paper, NASA scientists and engineers give new details about the agency’s Deep Atmosphere Venus Investigation of Noble gases, Chemistry, and Imaging (DAVINCI) mission, which will descend through the layered Venus atmosphere to the surface of the planet in mid- 2031. DAVINCI is the first mission to study Venus using both spacecraft … Read more

New, extremely reactive chemical discovered in the atmosphere

Researchers discovered a highly reactive chemical that they had long thought was too unstable to last under atmospheric conditions. (Image credit: Roberto Machado Noa/Getty Images)) Millions of tons of a class of extremely reactive chemicals called hydrotrioxides can linger in the atmosphere for several hours, a new study suggests — which could have implications for … Read more