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Water Evidence

All articles tagged with #water evidence

space1 day ago•3 min saved

Lucy’s Close Encounter Reveals a Water-Rich Fragment from a Violent Ancient Collision

NASA’s Lucy spacecraft captured Donaldjohanson during a 2025 flyby, revealing a peanut-shaped, cratered asteroid about 8 km by 3.5 km that likely formed when a 80 km parent body shattered ~155 million years ago, placing it in the Erigone family. Its two-lobed shape, crater pattern, and recent surface-reset hints (smaller craters erased) support a violent origin with seismic reshaping, while iron-bearing phyllosilicates indicate past liquid water. The findings help constrain how near-Earth asteroids and the solar system evolved, and Lucy heads to the Trojan asteroids in 2027.

via Gizmodo|

#donaldjohanson #erigone-family #lucy-mission

science11 months ago•6 min saved

Ancient Riverbeds Reveal Mars' Long-Lived Wet Past

Scientists have discovered over 15,000 kilometers of fossilized riverbeds on Mars, indicating that the planet once had a warm, wet climate with rain-fed water flow, challenging previous views of Mars as cold and dry.

via SciTechDaily|

#ancient-rivers #mars #noachis-terra

science1 year ago•3 min saved

China's Rover Finds Evidence of Ancient Ocean on Mars

China's Zhurong rover has discovered evidence of a 3.5 billion-year-old ocean in Mars' Utopia Planitia, supporting theories of a watery past. The rover identified features like pitted cones and sedimentary deposits indicative of water activity. This finding suggests Mars' northern hemisphere once hosted an ocean that gradually receded, providing insights into the planet's early climate and geological history.

via Interesting Engineering|

#ancient-ocean #mars #science

science2 years ago•4 min saved

Perseverance Rover Discovers Mysterious 'Popcorn Rocks' on Mars

NASA's Perseverance Rover has discovered unusual 'popcorn rocks' in the Bright Angel region of Mars' Jezero Crater, suggesting past water flow. These rocks, characterized by their popcorn-like textures and mineral veins, provide further evidence of ancient water activity. Perseverance's mission focuses on finding signs of ancient life and understanding past environments that could have supported life. The rover's journey to Bright Angel was challenging due to boulder fields, but it successfully navigated through and is now analyzing the unique rocks to determine their mineral composition.

via ScienceAlert|

#jezero-crater #mars #nasa