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Stories by Caleb A. Scharf

The Real Expanse

Human colonization of space would be terrifyingly hard, and that's the best thing about it

March 19, 2017 — Caleb A. Scharf

Tiny, Tiny TRAPPIST-1

The 7-planet system of TRAPPIST-1 is remarkable in many ways, including its size

February 26, 2017 — Caleb A. Scharf

Why I Love AI

Artificial Intelligence has the potential to show us new ways to think about the natural world

February 21, 2017 — Caleb A. Scharf

NASA's 50 Years of Mars Exploration [Video]

Humans have been visiting and exploring Mars for more than half a century, and NASA has released a video celebrating the agency's remarkable contributions

January 9, 2017 — Caleb A. Scharf

Earthrise Renewed

Forty-eight years ago human eyes first witnessed Earth rising over the moon; today we can all see it in high-definition

December 23, 2016 — Caleb A. Scharf

Spawning Stars

An extraordinary new image shows a protostellar disk fragmenting into multiple stars

November 22, 2016 — Caleb A. Scharf

Radiation, Brains, and Exploring the Universe

New studies indicate that ionizing radiation might cause neurodegenerative disease. The implications could be profound for interplanetary or interstellar species.

October 28, 2016 — Caleb A. Scharf