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Home > All Images > 2002 > September

September Gallery

Choose from 1,208 pictures in our September collection for your Wall Art or Photo Gift. All professionally made for Quick Shipping.


September Featured September Print

September

© NASA/SCIENCE PHOTO LIBRARY

1968, Apollo 8, Apollo Program, Astronomy, Earth, Earthrise, Landings, Manned Spaceflight, Mono Chrome, Moon, Programme, Rise, Rising, Space, Space Flight, Space Race

Microcystis blue-green alga Featured September Print

Microcystis blue-green alga

Blue-green algae. Coloured transmission electron micrograph of a single cell of the blue-green algae Microcystis aeruginosa (also known as Anacystis cyanea). Blue-green algae (cyanobacteria) are primitive algae; in structure they are related to bacteria. They are prokaryotes containing no membrane-bound nucleus; instead, as in bacteria, nuclear material is dispersed throughout the cell. Photosynthetic lamellae (thread-like structures, outer part of cell) are the primitive chloroplasts. M.aeruginosa cells are found in colonies; they bloom in late summer and may liberate a toxin that kills plankton, fish and birds. Magnification: x16, 320 at 6x6cm size

© A.B. DOWSETT/SCIENCE PHOTO LIBRARY