From the unconventional and awe-inspiring to the hilarious and heartwarming, here's a look at some of the most interesting photos, videos and stories that have our newsroom talking today. What's capturing your attention, filling your inbox and cluttering your Facebook/Twitter feed? Tweet us the stories you're talking about using #InstantIndex, or email us at ABC.WorldNews@abc.com, and they could appear on "World News."
Michael Phelps to Compete in Arizona Michael Phelps is coming out of retirement to compete next week in Arizona. The move is sparking speculation that Phelps is putting his toe in the water to compete in the 2016 Summer Olympics in Rio de Janiero.
Don't Miss Rare 'Blood Moon' Lunar Eclipse Turn your gaze to the stars tonight for an eerie and spectacular view of the "blood moon." At 12:53 a.m. ET, the Earth will begin to position itself between the sun and the moon for the first of a series of four total eclipses to conclude in September 2015. The phenomenon is known as a tetrad, in which the moon is completely covered by the earth's umbral shadow for four eclipses in a row, as opposed to only partial eclipses that fall in the outer penumbra. But rather than succumbing to complete darkness, the moon will glow red as it receives the refracted light that spills over the Earth's circumference. The series is a rare occurrence in history, with large spans of time, such as the 300 years between 1600 and 1900, witnessing none. But the 21st century will be more promising, according to Fred Espenak, who works for NASA's Goddard Space Flight Center and specializes in eclipse predictions.