It’s possible to see the whole circle of a rainbow – but sky conditions have to be just right. Plus you have to be up high!
| Full circle rainbow was captured over Cottesloe Beach near Perth, Australia in 2013 by Colin Leonhardt of Birdseye View Photography. He was in a helicopter flying between a setting sun and a downpour. Used with permission. Order prints of this photo.
As we approach another new moon, astronomer Guy Ottewell shares his profound understanding of lunar cycles and the coming total solar eclipse.
A foretaste of the August 21 eclipse. Detail from a sky chart in The Under-Standing of Eclipses. The Sun is shown on Aug. 15, 17, 19, and 21; the Moon on Aug. 20 and then Aug. 21 when it blots out the Sun. The dashed line is the ecliptic, the solid line is the celestial equator. Illustration via Guy Ottewell's blog. Used with permission.
Will you see the moon Friday morning from the Americas? Not likely. New moon will come on June 24, 2017 at 02:31 UTC.
Martin-Marthadinata-Surabaya-Java-Indonesia caught this very slim waning crescent moon - 1% illumination - at 5 a.m. on June 23, 2017 at Savana Bromo, a natural park near Mount Bromo, Indonesia.
The peregrine falcon is the fastest bird – and in fact the fastest animal on Earth – when in its hunting dive. Amazing BBC video here.