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Season guide

NOVA: Season 18

19 episodes Premiered Jan 8, 1991 Updated Sep 25, 2026
Previously on NOVA

Season 18 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ Directly follows the overarching narrative developments of NOVA Season 17.
  • ⚡ Faction dynamics and core character alliances shift under escalating external stakes.
  • ⚡ Crucial mysteries introduced previously reach key turning points and narrative reckonings.
  • ⚡ Sets up serialized story arcs that build directly toward the climactic season finale.
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Season 18 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 18 Progress Shield

Future titles & synopses blurred. Tap "Reveal" on any card to peek.
Binge Efficiency Engine

Season 18: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

21%
79%
Mytharc (4): Crucial lore & season climaxes
Core (15): Character development & subplots
Side Quest (0): Standalone / filler
S18·E1 Mytharc

Return to Mt. St. Helens

Jan 8, 1991 · 55 min

NOVA returns to Mount St. Helens a decade after its cataclysmic eruption to learn how nature is recovering from the disaster.

S18·E2 Core

ConFusion in a Jar

Apr 30, 1991 · 55 min

An experiment that could mean limitless supplies of energy sets the scientific world on its head. NOVA covers the cold fusion controversy.

S18·E3 Core

The Hunt for China's Dinosaurs (1)

Feb 5, 1991 · 55 min

NOVA covers the most elaborate expedition ever undertaken in the search for dinosaurs—to China's Gobi desert. Paleontologists brave sandstorms, heat and worse to find their fossils

S18·E4 Core

Case of the Flying Dinosaur

Feb 12, 1991 · 55 min

Are dinosaurs still among us? NOVA looks at the contentious question of whether present-day birds are dinosaurs. Over the years, new fossil discoveries keep amending the answer.

S18·E5 Core

T. rex Exposed

Feb 19, 1991 · 55 min

Tyrannosaurus rex, the terrifying kind of the dinos, recently turned up in a nearly complete skeleton in Montana. NOVA follows the dig to extract the bones and looks at the science

S18·E6 Core

The Russian Right Stuff: The Invisible Spaceman

Feb 26, 1991 · 55 min

In the first program of a three-part miniseries on the Soviet space program, NOVA profiles the mysterious genius behind the world's first satellite, the first man to orbit the eart

S18·E8 Core

The Russian Right Stuff: The Mission

Feb 28, 1991 · 55 min

In an unprecedented insider's look, NOVA covers the training, flight and recovery of a cosmonaut crew that visits the Soviet space station Mir. Unexpected emergencies show that spa

S18·E9 Core

Swimming With Whales

Mar 5, 1991 · 55 min

Gregory Peck narrates a scientific voyage around Vancouver Island in search of whales. Humpbacks, Killers, Grays and other whale species make their appearance in spectacular, never

S18·E10 Core

The Chip vs. the Chess Master

Mar 26, 1991 · 55 min

Will machines be able to beat us at our own game? The computer chess champ matches wits with the human world titleholder.

S18·E11 Core

Sex, Lies and Toupee Tape

Oct 1, 1991 · 55 min

NOVA covers the causes and attempted cures of baldness. Some men take pride in their bald heads; others will go to great lengths to cover up. Alan "Douglas Brackman" Rachins of NBC

S18·E12 Core

So You Want to Be a Doctor?

Oct 9, 1991 · 55 min

In a two-hour special, NOVA follows seven aspiring doctors through four years of medical school. The first examination, the anatomy lab, the first death, the first baby-it's all pa

S18·E13 Core

Secrets of the Dead Sea Scrolls

Oct 15, 1991 · 55 min

Forty years after they were discovered, the Dead Sea Scrolls have yet to be published in their entirety. NOVA looks at the laborious-some say scandalous-process of compiling and re

S18·E14 Core

Suicide Mission to Chernobyl

Oct 22, 1991 · 55 min

NOVA accompanies Soviet scientists on a deadly mission inside the sarcophagus-the massive structure that entombs the Chernobyl nuclear reactor. Will there be another deadly explosi

S18·E15 Core

Taller Than Everest?

Nov 5, 1991 · 55 min

The tallest mountain in the world? Think again—cartographers had to when satellite date revealed a peak called "K2" might be the real champ. Which is the world's tallest mountain?

S18·E16 Core

Fastest Planes in the Sky

Nov 12, 1991 · 55 min

The fastest machines in the sky are going to be slow stuff when the latest speed demons on the drawing board take to the air. NOVA looks at the intoxicating lure to fly even faster

S18·E17 Core

Avoiding the Surgeon's Knife

Dec 3, 1991 · 55 min

NOVA follows the efforts of four participants in a celebrated California study to unblock arteries without using drugs or surgery before their heart disease becomes fatal. A studio

S18·E18 Mytharc

Skyscraper! A NOVA Special

Dec 10, 1991 · 55 min

This 80-minute NOVA pledge special chronicles the building of the Worldwide Plaza, 47-story office tower in midtown Manhattan, from a hole in the ground to a 770-foot skyscraper.

S18·E19 Mytharc

The Fine Art of Faking It

Dec 17, 1991 · 55 min

The spectacular eclipse of 1991 passed over major observatories on the island of Hawaii. NOVA was there for 6 1/2 minutes of frenetic research that revealed new secrets about our s

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