Image of the Week

Reid Wiseman first spacewalk Expedition 41

Astronaut Reid Wiseman completes first spacewalk for Expedition 41

Saddleback Poisonous Caterpillar

Saddleback Caterpillar

Labaune-Crocus-pollen-and-stigmate

Close-up of crocus pollen and stigmate

Benthic-fish-egg-cluster

Benthic fish egg cluster

Rare-banded-transverse-aeolian-ridges-Mars

Rare banded transverse aeolian ridges on Mars

bridge-of-living-ants

Bridge of living ants

Hubble-Monkey-Head-Nebula

Monkey Head Nebula

Liver-Progenitor-Cells

Liver progenitor cells grown from adult stem cells

Vitamin-C-kaleidoscope

Vitamin C kaleidoscope

Fungus-among-us-Art-of-Science-James-S-Waters

Fungus among us

nebulae-trio

Spectacular nebulae trio

bacterial-supernova-Koch-Institute-Image-Awards

Bacterial supernova