31 Oct 2017
31 Oct 2017

Saturn, light on the north pole

Reflected sunlight is the source of the illumination for visible wavelength images such as the one above.  However, at longer infrared wavelengths, direct thermal emission from objects dominates over reflected sunlight.  This enabled instruments that can detect infrared radiation to observe the pole even in the dark days of winter when Cassini first arrived at Saturn and Saturn’s northern hemisphere was shrouded in shadow. 

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Source: ASI news

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31 Oct 2017
30 Oct 2017
30 Oct 2017

Melting snow aids absorption of carbon dioxide

It appears that something good can come from something bad. Although rising global temperatures are causing seasonal snow cover to melt earlier in the spring, this allows for the snow-free boreal forests to absorb more carbon dioxide from our atmosphere.

Source: ESA news

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30 Oct 2017

A hole in space


Space Science Image of the Week: This spooky sight, resembling fog swirling around a bottomless hole, was captured by the Hubble Space Telescope
Source: ESA news

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30 Oct 2017
30 Oct 2017
30 Oct 2017
30 Oct 2017

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