Discover is an American general audience science magazine launched in October 1980 by Time Inc. It is currently owned by LabX Media Group.

Discover was created primarily through the efforts of Time magazine editor Leon Jaroff. He noticed that magazine sales jumped every time the cover featured a science topic. Jaroff interpreted this as a considerable public interest in science, and in 1971, he began agitating for the creation of a science-oriented magazine. This was difficult, as a former colleague noted, because "Selling science to people who graduated to be managers was very difficult".

Jaroff's persistence finally paid off, and Discover magazine published its first edition in 1980. Discover was originally launched into a burgeoning market for science magazines aimed at educated non-professionals, intended to be easier to read than Scientific American but more detailed and science-oriented than Popular Science. Shortly after its launch, the American Association for the Advancement of Science (AAAS) launched a similar magazine called Science 80 (not to be confused with its flagship academic journal, Science), and both Science News and Science Digest changed their formats to follow the new trend.

During this period, Discover featured fairly in-depth science reporting on "hard science" and avoided fringe topics like extraterrestrial intelligence. Most issues contained essays by well-known scientists—such as Stephen Jay Gould, Jared Diamond, and Stephen Hawking. Another common article was a biography, often linked with mentions of other scientists working in the field. The "Skeptical Eye" column sought to uncover pop-science scams, and was the medium where James Randi released the results of Project Alpha. Jaroff said that it was the most-read section at its launch.

The sudden appearance of so many magazines in the same market space inevitably led to some falling by the wayside, and Discover was left largely alone in its market space by the mid-1980s; it nevertheless decided to appeal to a wider audience by including articles on psychology and psychiatry. Jaroff told the editor-in-chief that these were not "solid sciences", and was sent back to Discover's parent, Time, Inc. "Skeptical Eye" and other columns disappeared, and articles covered more controversial, speculative topics (like "How the Universe Will End"). The new format was a great success, and the new format remained largely unchanged for the next two decades.

Gilbert Rogin, a Sports Illustrated editor, was brought in 1985 to revive Discover. In 1986, Time purchased the subscription lists of the shuttered magazines Science Digest and Science 86 from their publishers. Circulation for the magazine reached 925,000 by May 1987 with revenue for 1986 being $6.9 million, but annual net loss was $10 million.

In January 1987, Time appointed a new Discover publisher, Bruce A. Barnet, previously publisher of Picture Week test magazine from August 1985 to replace James B. Hayes, who was appointed publisher of Fortune.

The magazine changed hands several times. In 1987, Time, Inc. sold Discover to Family Media, the owners of Health, Golf Illustrated, Homeowner, 1,001 Home Ideas and World Tennis, for $26 million. From January to July 1991, Discover magazine lost 15% of its advertising while still remaining profitable. Family Media closed down while suspending publication of all its magazines and placing them up for sale. Family Media's last Discover issue was August 1991, with a circulation of 1.1 million copies.