Helical Tapestries

Space pics courtesy of the Hubble/ESA image program! (http://www.spacetelescope.org/images/)

Inside City Hall in London. It looks strange on the outside and strange on the inside.

DNA molecule. Computer illustration of unravelled double stranded DNA (deoxyribonucleic acid) molecules. DNA is composed of two strands twisted into a double helix. Each strand consists of a sugar-phosphate backbone attached to nucleotide bases. There are four bases: adenine, cytosine, guanine and thymine, which are joined together by hydrogen bonds. DNA contains sections called genes that encode the body's genetic information.

Not looking forward to the alien probe

DNA molecule. Computer artwork representing the structure of DNA (deoxyribonucleic acid), which is composed of two strands twisted into a double helix. The molecular structure of the two sugar-phosphate strands can be seen at left, and at centre are the bases (red and white beads), which connect the two strands. DNA contains sections called genes, which encode the body's genetic information.

Lyme disease bacteria. Coloured scanning electron micrograph (SEM) of Borrelia burgdorferi bacteria, the cause of Lyme disease. These spirochaete (spiral-shaped) bacteria are passed to humans through the bites of infected Ixodes sp. ticks. Symptoms of Lyme disease include skin lesions, muscle pain, neurological and cardiac abnormalities, and arthritis. Treatments include antibiotic and corticosteroid drugs.