15/02/2017

OSIRIS-REx takes closer image of Jupiter

During Earth-Trojan asteroid search operations, the PolyCam imager aboard NASA's OSIRIS-REx spacecraft captured this image of Jupiter (center) and three of its moons, Callisto (left), Io, and Ganymede.

Laissez-faire is not good enough for reforestation

If degraded and logged areas of tropical forests are left to nature, the populations of certain endangered tree species are not able to recover. This applies in particular to trees with large fruit where the seeds are distributed ...

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