ESA - mISSione possibile - PROGETTO: Teatro dello Spazio, marionette ‘Chloé sulla Luna’

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PROGETTO: Teatro dello Spazio, marionette ‘Chloé sulla Luna’

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Space Shuttle Discovery sees Earth's Moon

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A rarely seen phenomenon: the Earth's atmosphere bending the light from the full Moon thereby compressing it.

Credits: NASA

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Stunning view of Saturn by Cassini-Huygens 1200 million kilometres from Earth and 15.7 million kilometres from Saturn.

In this narrow-angle camera image from 21 May 2004, the ringed planet displays subtle, multi-hued atmospheric bands, coloured by yet undetermined compounds. Mission scientists hope to determine the exact composition of this material.

Credits: NASA/JPL/Space Science Institute

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On Friday, 12 March 2004, the Sun ejected a spectacular 'eruptive prominence', or mass of relatively cool plasma, into the heliosphere. Relatively cool, because the plasma observed by the Extreme-ultraviolet Imaging Telescope (EIT) on board the Solar and Heliospheric Observatory (SOHO) was only 60 000 - 80 000 degrees Celsius, unlike the 1.5 - 2 million degrees Celsius plasma surrounding it in the Sun's tenuous outer atmosphere, or 'corona'. At the time of this snapshot, taken in the light of singly-ionised helium, the eruptive prominence was over 700 000 km across - over fifty times Earth's diameter - and was moving in excess of 75 000 km per hour.

Credits: ESA/NASA

Puzzle: Essere senza peso Cos’è la gravità?Cos’è l’assenza di peso?