© 2025 New England Public Media

FCC public inspection files:
WGBY • WFCR • WNNZ • WNNU • WNNZ-FM • WNNI

For assistance accessing our public files, please contact hello@nepm.org or call 413-781-2801.
PBS, NPR and local perspective for western Mass.
Donate
Play Live Radio
Next Up:
0:00
0:00
0:00 0:00
Available On Air Stations
Access to this video is a benefit to members
Sign In
Learn More
NOVA

What Are UFOs?

Season 52 Episode 1 | 53m 43s

After decades in the shadows, UFOs are being studied seriously. Are they weather balloons, optical illusions, secret military technology? Or something else? Follow scientists as they try to unravel the mystery of the strangest objects in our skies.

Aired: 01/21/25 | Expires: 02/19/25
National Corporate funding for NOVA is provided by Carlisle Companies. Major funding for NOVA is provided by the NOVA Science Trust, the Corporation for Public Broadcasting, and PBS viewers.
Extra
Watch • 0:30
NOVA
Human: Building Empires Preview
Discover how two revolutionary ancient inventions changed the course of humanity forever.
Preview: S52 E16 | 0:30
Watch • 0:30
NOVA
Human: Into the Americas Preview
Follow ancient humans’ journey into an icy and perilous new land.
Preview: S52 E15 | 0:30
Watch • 0:30
Independent Lens
Trailer | Cracking the Code: Phil Sharp and the Biotech Revolution
Phil Sharp’s RNA breakthrough sparked a revolution in science, health, and biotech.
Preview: S27 E1 | 0:30
Watch • 0:30
NOVA
Human: Neanderthal Encounters Preview
Discover how Homo sapiens outlasted Neanderthals – and how they helped make us who we are today.
Preview: S52 E14 | 0:30
Watch • 1:38
American Experience
Trailer | Hard Hat Riot
Watch a preview of Hard Hat Riot.
Preview: S37 E5 | 1:38
Watch • 0:30
NOVA
Human: Journeys Preview
Follow Homo sapiens as they venture out of Africa and spread farther than any other human species.
Preview: S52 E13 | 0:30
Watch • 1:01
Antiques Roadshow
Appraisal: Gustav Stickley Desk, ca. 1910
Appraisal: Gustav Stickley Desk, ca. 1910
Clip: S29 E17 | 1:01
Watch • 0:30
NOVA
Human: Origins Preview
Trace the remarkable origin story of Homo sapiens and the crucial moments that shaped our species.
Preview: S52 E12 | 0:30
Watch • 15:10
Independent Lens
Do No Harm
One woman’s journey from heroin addiction to healing, recovery, and hope.
Special: 15:10
Watch • 1:10
Great Performances
Elza van den Heever and Gerhard Siegel in "Salome"
Salome (Elza van den Heever) and Herod (Gerhard Siegel) sing an excerpt from the opera.
Clip: S52 E24 | 1:10
Latest Episodes
All
  • All
  • NOVA Season 52
  • NOVA Season 51
  • NOVA Season 50
  • NOVA Season 49
  • NOVA Season 48
  • NOVA Season 47
  • NOVA Season 46
  • NOVA Season 45
  • NOVA Season 44
  • NOVA Season 43
  • NOVA Season 42
  • NOVA Season 41
  • NOVA Season 40
  • NOVA Season 39
  • NOVA Season 38
  • NOVA Season 37
  • NOVA Season 36
  • NOVA Season 35
  • NOVA Season 34
  • NOVA Season 33
  • NOVA Season 32
  • NOVA Season 31
  • NOVA Season 30
  • NOVA Season 28
  • NOVA Season 27
  • NOVA Season 23
NOVA
Human: Building Empires
Discover how two revolutionary ancient inventions changed the course of humanity forever.
Episode: S52 E16
NOVA
Human: Into the Americas
Follow ancient humans’ journey into an icy and perilous new land.
Episode: S52 E15
NOVA
Human: Neanderthal Encounters
Discover how Homo sapiens outlasted Neanderthals – and how they helped make us who we are today.
Episode: S52 E14
NOVA
Human: Journeys
Follow Homo sapiens as they venture out of Africa and spread farther than any other human species.
Episode: S52 E13
NOVA
Human: Origins
Trace the remarkable origin story of Homo sapiens and the crucial moments that shaped our species.
Episode: S52 E12
Watch • 53:27
NOVA
Ultimate Crash Test: Impact
Forensic science is put to the test after the first-ever staged multi-vehicle pileup.
Episode: S52 E11 | 53:27
Watch • 53:29
NOVA
Ultimate Crash Test: Countdown
A first-of-its-kind experiment aims to stage a multi-vehicle pileup to gain new data on car safety.
Episode: S52 E10 | 53:29
Watch • 1:36:42
NOVA
Critical Condition: Health in Black America
After centuries of pseudoscience, researchers examine the causes of racial health disparities.
Episode: S52 E9 | 1:36:42
Watch • 53:41
NOVA
Secrets of the Forest
Follow scientists in a quest to understand how complex forest ecosystems can help cool our planet.
Episode: S52 E8 | 53:41
Watch • 53:39
NOVA
Revolutionary War Weapons
Explore key military technologies in the American colonies’ fight for freedom.
Episode: S52 E7 | 53:39