Eclectic Perambulations in the Noosphere
by Anna Morris
"This high definition photo of the North American and Pelican Nebula came from a series of images taken by Anna Morris between May 21, 2011 to August 21, 2011. The two nebulae are parts of the same interstellar cloud of ionized hydrogen (H II region)"
.
by Herbert Raab
"The photo above shows a jaunty rainbow stretching over a cornfield near Piberbach, Austria. My shadow clearly shows the direction of the antisolar point -- the only direction where rainbows can be observed. Note that the fainter secondary bow is also visible (at left). This bow is caused by two internal reflection of sunlight in raindrops. Since some light is lost with each additional reflection, secondary bows are only 43 percent as bright as the primary bow."