NASA’s Perseverance Rover Spots Megaripples, Proof Mars’ Soil Is Still Shifting

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2 months ago

August 31, 2025

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NASA’s Perseverance rover has discovered striking megaripples — giant Martian sand waves — at a site called Kerrlaguna in Jezero Crater. These formations, about a meter tall, are larger than Earth’s beach ripples but smaller than the biggest dunes. Scientists say they formed when Mars had a thicker atmosphere and stronger winds, and many now appear frozen in t…

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Astronomers Spot Signs of Baby Planets in a Star’s Mysterious Disk

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3 hours ago

November 7, 2025

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Astronomers using Keck Observatory have imaged the dusty disk around HD 34282, a young star about 400 light-years away, revealing bright clumps and a 40 AU gap—clear signs of planet formation. The system provides a rare glimpse into early planetary birth, helping refine models of how gas and dust evolve into new worlds.

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NASA’s James Webb Space Telescope Telescope Challenges Old Theories on Mini-Neptune Worlds

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4 hours ago

November 7, 2025

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New models suggest mini-Neptunes—planets smaller than Neptune with thick gas envelopes—may have solid rocky surfaces instead of molten magma. Data from NASA’s JWST revealed high-pressure atmospheres capable of compressing molten rock into solid crusts. This discovery challenges earlier assumptions and offers key insights into exoplanet composition and planetary …

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Mystery Deepens as Interstellar Comet 3I/ATLAS Brightens Unexpectedly Near the Sun

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1 day ago

November 6, 2025

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Interstellar comet 3I/ATLAS defied expectations during its 2025 solar flyby, brightening far faster than predicted. Observatories worldwide recorded a blue coma rich in exotic gases, suggesting unique chemistry from another star system. Scientists are investigating whether its unusual composition or speed caused the outburst, marking a new interstellar mystery.