Jack McDevitt (born 1935) is an American science fiction author whose novels frequently deal with attempts to make contact with alien races, and with archaeology or xenoarchaeology.
McDevitt's first published story was "The Emerson Effect" in The Twilight Zone Magazine in 1981. Two years later, he published his first novel, The Hercules Text, about the discovery of an intelligently conceived signal whose repercussions threaten human civilization. This novel set the tone for many of McDevitt's following novels, which focused on making first contact. Frequently this theme is mixed with both trepidation before the unknown and a sense of wonder at the universe.
With The Engines of God (1994), McDevitt introduced the idea of a universe that was once teeming with intelligent life, but contains only their abandoned artifacts by the time humans arrive on the scene. Although it was initially written as a standalone novel, the main character of The Engines of God, pilot Priscilla Hutchins, has since appeared in five more books, Deepsix (2001), Chindi (2002), Omega (2003), Odyssey (2006), and Cauldron (2007). The mystery surrounding the destructive "Omega Clouds" (which are introduced in The Engines of God) is left unexplored until Omega.
McDevitt's novels frequently raise questions which he does not attempt to answer. He prefers to leave ambiguities to puzzle and intrigue his readers: "Some things are best left to the reader's very able imagination."
Source: Wikipedia, "Jack McDevitt", available under the CC-BY-SA License.