WhyCosmo

 The JWST (James Webb Space Telescope) has made a groundbreaking discovery by detecting the smell of rotten eggs on a nearby exoplanet, HD 189733. This "hot Jupiter," located just 13 times closer to its host star than Mercury, reveals an atmosphere filled with hydrogen sulfide, a compound responsible for the rotten odor. The JWST's spectral analysis identified hydrogen sulfide and various other sulfur compounds. These findings are significant as sulfur is considered a building block of life, making it a prime target in the searching for habitable place. Despite its sterile conditions, temperatures soaring above 900°C, and 8,000 kph winds, HD 189733 offers valuable insights into exoplanet atmospheres. The study, led by Guangwei Fu of John Hopkins University, highlighted the absence of methane in HD 189733's atmosphere, contrary to previous reports. Additionally, the exoplanet was found to have metals in its atmosphere, similar to stars. The JWST continues to be a power...

  In an incredible discovery, NASA's Juno spacecraft has captured an astonishing image of Jupiter's moon, Europa , showcasing apparent movement in its icy crust. This extraordinary sighting has sent ripples through the scientific community, sparking curiosity and excitement about what lies beneath Europa's frozen exterior. Europa's icy shell appears to be moving.   (Image credit: NASA/JPL-Caltech/SwRI) What is it?: Europa, Jupiter's fourth-largest moon. Location: About 417,000 miles (671,000 kilometers) from Jupiter and 500 million miles (805 million km) from the sun. It was shared on May 19, 2024. Why it's so special: Slightly smaller than Earth's moon, Europa exhibits characteristics more akin to a planet. It boasts a magnetic field, a tenuous oxygen atmosphere, and a liquid iron core. Beneath its 11-mile (18 km) thick icy shell lies a vast salty ocean, making Europa a leading contender in discovering extraterrestrial life. Recent imagery from Juno, ...

  NASA's Voyager 1, the most distant spacecraft from Earth, is again sending back scientific data after resolving a computer issue. This remarkable comeback has rekindled excitement about the spacecraft's ongoing mission in interstellar space. Science Resumes on Voyager 1 Voyager 1's four main instruments, offline since a computer malfunction in November, are operational. The Jet Propulsion Laboratory (JPL) announced that meaningful data transmission resumed in April, and the spacecraft has recently been commanded to continue its study of the interstellar environment. A Journey Through Space Launched in 1977, Voyager 1 has journeyed over 15 billion miles (24.14 billion kilometers) from Earth. Its twin, Voyager 2, is also exploring interstellar space, currently more than 12 billion miles (19.31 billion kilometers) away. Voyager 1's mission has provided groundbreaking discoveries, including a thin ring around Jupiter and several moons of Saturn. Overcoming Challenges The...