Picture of the day for April 25, 2018

Anzac Parade from the Australian War Memorial in Canberra, Australian Capital Territory. In the distance is Old Parliament House, and behind that is the new Parliament House. Today is ANZAC Day, the day of recognition of Australians and New Zealanders who served their country.. Learn more.

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Picture of the day for April 21, 2018

A port security boat assigned to Martime Expeditionary Squadron (MSRON) 1 patrols the waters near Kuwait Naval Base. MSRON-1 is deployed supporting maritime security operations and port security operations in the U.S. 5th Fleet area of responsibility.. Learn more.

Picture of the day for April 20, 2018

A tape head cleaner cassette made of clear hard plastic. The plastic is birefringent and demonstrates internal stress as coloured patterns (photoelasticity) when photographed using cross polarisation. The polarising light source (an LCD monitor) has been rotated such that the polarising filter on the lens is oppositely oriented and so cuts out all the direct light, leaving a black background.. Learn more.