* Astronomy

As part of an ongoing effort to raise awareness about the urgent need for action against desertification and land degradation, the UN is calling on all aspiring photographers to participate in its second international photo contest.
The UN Convention to Combat Desertification (UNCCD) is looking for images that artistically highlight either the efforts of people trying to conserve soil, land or water in drylands or the relationship between people and dryland ecosystems.

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