a freeze frame from deep space : 無料・フリー素材/写真
a freeze frame from deep space / jurvetson
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
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| 説明 | The latest arrival at work: the largest section of Tassédet 004. Just shy of 12kg, it took a custom rig to prepare and polish.It’s one of the finest impact-melt meteorites, with metal veins flowing around and through rounded stones older than Earth and gas bubbles frozen in place throughout. This meteorite is the result of a powerful collision in interplanetary space at cosmic velocity (> 11,000 MPH), melting the portion of the asteroid from where it originated — and launching it into an Earth-crossing orbit to eventually land in the African nation of Niger.I think of it as a heavy metal-rich snapshot of a cataclysmic impact in interplanetary space frozen in time.The chaotic turbulence during and after the impact causes the hot impact melt to mix with cold rock clasts. The clasts cool the melt, and the melt heats the clasts sometimes to the point where their exteriors melt. This is the only mechanism that leads to the rare, rounded clasts in impact breccias. — from WUSTLThe current theory is that this H5-melt-breccia came from asteroid 6 Hebe. 11,640 g and 630 x 520 x 10 mm. |
| 撮影日 | 2023-09-26 16:50:30 |
| 撮影者 | jurvetson , Los Altos, USA |
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| カメラ | iPhone 14 Pro Max , Apple |
| 露出 | 0.017 sec (1/60) |
| 開放F値 | f/1.8 |