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NASA Observes Material Transfer Between Binary Asteroids NASA's DART mission has provided the first direct visual evidence that asteroids in binary systems can exchange surface material. Using images captured before DART intentionally collided with Dimorphos, the moon of the asteroid Didymos, scientists observed faint fan-shaped streaks on Dimorphos' surface. These streaks indicate slow-moving debris, traveling at less than a walking pace, likely spun off from Didymos due to sunlight accelerating its rotation—a process known as the YORP effect. The debris created distinctive patterns on Dimorphos, demonstrating that near-Earth binary asteroids are more dynamic than previously believed. Researchers confirmed these findings by developing image-processing techniques to remove shadows and artifacts, running computer simulations, and conducting laboratory experiments with marbles and sand to replicate the fan-like streaks. The European Space Agency’s Hera mission, arriving at Didymos in December 2026, may provide further insight by observing whether these streaks survived the DART impact or if new patterns have formed. This research improves understanding of asteroid behavior, surface evolution, and may enhance planetary defense strategies for potentially hazardous asteroids.

NASA Observes Material Transfer Between Binary Asteroids

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#asteroids #dartmission #binarysystems

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New number encoding format uses sign bits and logarithms for efficient computer representation
https://adamscherlis.github.io/blog/iterlog-coding/
#numberencoding #computerscience #mathematics #binarysystems #datarepresentation

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