Since it explored Pluto in 2015, the New Horizons spacecraft has been zooming toward NASA's most distant target yet. Join the mission team as the probe attempts to fly by Ultima Thule, an object 4 billion miles from Earth.

For over a decade, the Cassini space probe has been sending us dazzling images of Saturn's breathtaking rings and mysterious moons. Now NOVA takes you on a suspenseful ride during Cassini's final hours as it dives into Saturn's atmosphere.

Looks at the scientists trying to understand 2011's tornado outbreak in an effort to improve forecasting and prediction.

Follow along as NASA launches the Mars 2020 Mission, perhaps the most ambitious hunt yet for signs of ancient life on Mars. In February 2021, the spacecraft blazes into the Martian atmosphere at some 12,000 miles per hour and lowers the Perseverance Rover into the rocky Jezero Crater, home to a dried-up river delta scientists think could have harbored life. Perseverance will comb the area for signs of life and collect samples for possible return to...

NOVA's expert team looks for the signature of a volcanic eruption big enough to have blasted a huge cloud of ash and sulfuric acid into the atmosphere. Killer Volcanoes spotlights the search for the mystery volcano that plunged the globe into a deep freeze and inflicted famine on medieval Europe.

Takes viewers into the world of the largest and least known member of the weasel family, to reveal who the wolverine truly is.

In 1943, Hitler hatches a diabolical weapon: a bank of "superguns" housed in a massive underground complex in Nazi-occupied northern France. Together, the guns would be able to pump 600 high explosive shells 100 miles to London each hour, spelling doom for the Allies. Engineers, archaeologists, and WWII historians investigate this fearsome weapon and two audacious missions designed to destroy it.

Dive into the devastation wrought by Hurricanes Harvey, Irma, and Maria. How can scientists better predict these storms, and what does the 2017 season tell us about the likelihood of similar storms in the future?