Science and Space Posters by Ron Guyatt
Doug Perrine captured these stunning photographs in the Maldives. The particular location (Vaadhoo Island) has a concentrated population of bioluminescent phytoplankton. Bioluminescence is a natural chemical reaction which occurs when a micro-organism in the water reacts with oxygen. When washed ashore by the tides, the phytoplankton’s chemical energy is turned into light energy, illuminating the waves.
8 Minutes of the Earth’s Rotation
How I wish our planet’s movement was this apparent while staring at the night sky. It could probably make a lot more people realize just how tiny we are compared to this vast unexplored galaxy above our heads.
This is a stack of 70 pictures with a 5 second exposure each at ISO 3200 and f/2.2.
Photographed by: Paolo Nacpil
The Jellyfish Nebula is an emissions nebula located about 5,000 light years away. Here, it is shown in the lower right flanked by stars Mu and Eta Geminorum, with emissions nebula Sharpless 249 on the upper right.
The Jellyfish Nebula is part of IC 443, a supernova remnant known to harbor a neutron star. The light from the explosion that created this area likely reached Earth over 30,000 years ago. This image maps emissions from oxygen, hydrogen, and sulfur as blue, green, and red.
Image and information from NASA.