Is there life beyond Earth?

Caleb Scharf works in the fields of exoplanetary science and astrobiology, and writes extensively about science for a popular audience. Exoplanetary science is devoted to the discovery and characterization of planets around other stars, and understanding the formation, histories, and properties of these planets. One ultimate goal of this research is to find planets that could harbor recognizable life, and to detect the presence of that life—an effort that falls under the banner of astrobiology.


Latest Book

  • Scharf and Miller take readers on a spectacular journey, starting in the farthest reaches of the universe and ending in the deepest depths of the atom … Miller’s stunning illustrations pair perfectly with Scharf’s compelling writing, which introduces complex ideas using everyday language and lucid metaphors. ... A superb composite of scientific knowledge that will no doubt inspire readers of all ages to learn more about our enigmatic universe.
    Kirkus Reviews
  • A fantastic journey from the fringes of the visible universe to the heart of the atom. … [A] book of wonders.
    Publishers Weekly
  • This brilliant author-illustrator collaboration is a worthy, must-have successor to the title that inspired it, the classic Powers of Ten.
    Gilbert Taylor, Booklist

Featured Items

Is Physical Law an Alien Intelligence?

Alien life could be so advanced it becomes indistinguishable from physics.

- Nautilus

Where Do Minds Belong?

Intelligence could have been moving back and forth between biological beings and machine receptacles for aeons.

– Aeon

Life Beyond the Pale Blue Dot

Our own oasis of life in the cosmos is blue, but will others be?

– Nautilus

A Universe Full of Planets

The phrase “scientific revolution” tends to get overused. But there is one happening right now that could arguably alter the entire trajectory of human existence.

– The New York Times