Samuel Sanders

Sam Sanders is the author of Your Next Big Idea, a book about entrepreneurial creativity. He teaches at the University of the District of Columbia and is working on a forthcoming book on how play can be used to reduce conflict diplomatically.

Venus, seen in three views as it approaches a conjunction with Earth and the sun, won the planets, comets and asteroids category.

See 11 Breathtaking Space Images From the Astronomy Photographer of the Year Contest

From a solar eclipse to a dolphin-like nebula, these winning shots by astrophotographers from around the world depict the cosmos in sharp detail

This rare leucistic green sea turtle was discovered among nests, supported by local conservation efforts, in Papua New Guinea’s Conflict Islands.

See 15 Stunning Images From the Ocean Photographer of the Year Awards

The winning and highly commended underwater photography spotlights breathtaking animal behavior, conservation needs and the otherworldly environment of Earth's oceans

An abandoned house in the Namib Desert with the Milky Way rising above it.

See Ten Awe-Inspiring Images From the Astronomy Photographer of the Year Contest

Auroras, nebulas and stars take the spotlight in this space-themed competition, alongside shots of our own sun and moon

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