Emerging out of the Western Australian outback MWA is a remarkable telescope for radio astronomy where more than 2000 antennas are spread across 3 square kilometers, in 128 groups of dual-polarisation dipole antennas. — John Goldsmith

The pictures were snapped with the two infrared channels that still work at Spitzer's still-quite-chilly temperature of 30 Kelvin (about minus 406 degrees Fahrenheit). The two infrared channels are part of Spitzer's infrared array camera: 3.6-micron light is blue and 4.5-micron light is orange.