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A Complete Auroral Oval from SMILE

ESA, CAS, SMILE, UVI

Explanation: Have you ever seen a complete auroral oval? You can't see one from the ground because it makes too large a circle around one of Earth's magnetic poles. But spacecraft high above the Earth can see them. The featured video from ESA and CAS's robotic SMILE spacecraft shows not only a full auroral oval, but using ultraviolet light, one that occurred during the day. The time-lapse covers about an hour in late July and shows visually how variable and turbulent auroras really are. The points of light on the sides are distant stars that appear to move only because SMILE's camera view shifts as the spacecraft orbits the Earth. A goal of SMILE is to better understand how the Sun's wind interacts with the Earth's magnetosphere -- and so better understand how to protect astronauts, spacecraft, and ground-based electrical grids from solar storms.

Tomorrow's picture: a supernova's pearls

NASA Astronomy Pictures Archive (Past 30 Days)

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A Complete Auroral Oval from SMILE

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Praise and Gratitude be to Allah, The Lord of All Worlds. And Prayers and peace and greetings upon the most noble of the prophets and messengers Mohammad (sala lah alyh w aleh): Allah says in the Holy Koran (It is He who made the sun a shining light and the moon a derived light and determined for it phases - that you may know the number of years and account) ). Muslims has taken care of astronomy wide attention because of the close relationship of this science in the care of worship , including: knowledge of the time and direction of Qibla , especially after the overlap of Islamic civilization with other civilizations in the first era of Islam were Muslims gives scrutiny of things, and checked the things.

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