a million miles (EPIC 2015 photobomb) cascading accordion subedition (for LAABF2017).

on february 24, 2015, NASA launched the DSCOVR (Deep Space Climate Observatory) spacecraft to the neutral gravity Lagrange point 1 (L1) between the Earth and the Sun. the spacecraft reached its orbit - about a million miles from Earth - on June 8, 2015. administered by NOAA (National Oceanic and Atmospheric Administration) to observe and provide advanced warning of solar wind activity, the spacecraft also has a camera, NASA’s EPIC (Earth Polychromatic Imaging Camera) camera and telescope, pointed back at Earth. EPIC takes images with 10 different filters (from ultraviolet, through the visible spectrum, to near infrared), and it generates “natural color” images of Earth by combining red, green & blue channel images.

EPIC captured a lunar transit of Earth - our Moon crossing in front of Earth while both are illuminated by the Sun (from the perspective of the spacecraft) - on July 16, 2015 between 3:50pm and 8:45pm. our Moon is tidally locked to Earth (so observers on Earth always see the same side of the Moon). this image shows the far side of the Moon (visible only from space). the Moon moves “over the Pacific Ocean near North America. The North Pole is in the upper left corner of the image, reflecting the orbital tilt of Earth from the vantage point of the spacecraft.” NASA posted a “natural color” animation of this event on August 5 (goo.gl/qHHrcz). “combining three images taken about 30 seconds apart as the Moon moves produces a slight but noticeable camera artifact on the right side of the Moon. because the Moon has moved in relation to the Earth between the time the first (red) and last (green) exposures were made, a thin green offset appears on the right side of the Moon when the three exposures are combined. this natural lunar movement also produces a slight red and blue offset on the left side of the Moon in these unaltered images.”

NASA released an animation of this EPIC photobomb (NASA info) in 2015 and i made in into a cascading accordion. NASA subsequently released the full sized images (here) and i am making a new version of that open edition cascading accordion matching the shape of a related cascading accordion (with 3.5” high by 4.75” wide panels, it flows better than the initial variations of this open edition work).

a million miles (EPIC 2016 photobomb and twirl) cascading accordion (for LAABF2017).

EPIC captured a second lunar transit of Earth on July 5, 2016 between 3:14am and 7:37am, and released a series of 15 images of the transit. NASA now has a searchable database of EPIC images and with this second lunar transit, i wanted to also show one rotation of Earth (24 hours) leading up to or following the transit. however, NASA has no other images from July 5th (and an incomplete set from July 4th). so, i built this cascading accordion with the 15 images of the transit (ending at 7:37am on July 5th, 2016) plus 17 images of the Earth rotating continuing from the nearest approximation i could make (starting at 9:10am on July 6th, 2016 and continuing through to 2:56am on July 7th, 2016) so that the entire cascading accordion shows approximately 24 houra (one full rotation of Earth).

a million miles (EPIC 2015 photobomb) 2017 cascading accordion subedition (for LAABF).

a million miles (EPIC 2016 photobomb and twirl) wip cascading accordion (hoping to release at LAABF2017).