Space
Proba‑3 witnessed a double eclipse – what it means for solar research
ESA’s Proba‑3 captured a rare double eclipse, combining a natural Moon shadow with its artificial eclipse, offering unique solar data.
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CosmicBear — a science and technology website covering space, astronomy, scientific discoveries, research, and fascinating facts about our universe and the world around us.
Why Mars’s South‑Pole Cliffs Appear Purple: The Science Behind the Swirls
Mars Express’s HRSC camera captured purple‑tinged cliffs near the south pole. Learn how volcanic minerals, CO₂ frost, dust and light create the striking colours.
Space
How ESA’s Proba‑3, Solar Orbiter, and a Musical Simulation Illuminate the 2026 Solar Eclipse
ESA uses artificial eclipses, Solar Orbiter data, and a musical simulation to study the 12 Aug 2026 total solar eclipse and improve space‑weather forecasts.
Webb Finds Brown Dwarfs Only Twice Jupiter’s Mass – A New Bottom for Star Formation
Webb’s latest deep view of IC 348 reveals brown dwarfs just twice Jupiter’s mass, challenging star‑formation models and hinting at planet‑forming disks.
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What JWST Reveals About the Atmospheres of Distant Worlds.The James Webb Space Telescope (JWST) has begun to study the light that passes through the atmospheres of planets orbiting other stars. By measuring how the light changes at different wavelengths, scientists can identify gases such as water vapor, methane, and carbon dioxide. In a recent survey of 20 exoplanets, JWST detected water vapor in the atmosphere of a planet about 1.5 times the size of Earth. The planet orbits a star 200 light‑years away, and its atmosphere shows a temperature profile that suggests it could host liquid water on its surface. The data also reveal that many hot Jupiters—large planets that orbit very close to their stars—have clouds made of silicate particles. These clouds absorb and scatter light, making the planets appear brighter in the infrared. Scientists use computer models to match the observed spectra with possible atmospheric compositions. The models help determine the planet’s pressure, temperature, and the presence of chemical reactions. These findings show that JWST can probe the chemistry of exoplanet atmospheres with unprecedented detail. The results will guide future missions that aim to find Earth‑like planets and assess their habitability. The information provided is general and not professional advice. Consult a qualified professional for specific guidance.