Science Channel HD

United States United States

Science Channel HD airs nonfiction programming centered on engineering, natural sciences, space exploration, and technology. Its schedule includes documentary series that examine how things are built, how scientific principles apply to everyday life, and how researchers conduct experiments in fields like physics and biology. The channel also features content on historical inventions, modern manufacturing processes, and the work of engineers and technicians. Some programs focus on extreme weather, geological events, or the mechanics behind vehicles and machinery. The channel’s lineup tends toward factual, observation-based storytelling rather than dramatized reenactments. It is available across the United States through cable and satellite providers.

In addition to its linear broadcast, many episodes and full series can be accessed through on-demand services and streaming platforms that carry the channel’s content. TV guide listings for Science Channel HD vary by provider and region, so specific air times for individual programs depend on the local schedule. The channel does not carry movies, music videos, news, sports, or religious programming; its focus remains on documentary and educational material related to science and technology.

Schedule
What on Earth?
00:00 - 01:00
What on Earth?
Riddle of Sardinia Tower
Series, Science, Documentary
Satellite images capture a triangular castle-like tower located on the Mediterranean island of Sardinia; experts investigate the relics of a declining ancient civilization that may have suffered a celestial catastrophe.
What on Earth?
01:00 - 02:00
What on Earth?
Doomsday Lair of Greece
Series, Science, Documentary
Satellite images capture bizarre structures fenced within a remote mountaintop complex on the Greek island of Kefalonia; experts investigate and discover a network of massive satellites linked to a hidden NATO doomsday communications bunker.
What on Earth?
02:00 - 03:00
What on Earth?
Range of Nazi Evil
Series, Science, Documentary
Satellite images capture dozens of perfectly straight parallel lines hidden in the dense Polish woodlands; experts investigate and uncover a massive WWII military complex once used as a notorious and deadly Nazi weapons training facility.
What on Earth?
03:00 - 04:00
What on Earth?
Circles of the High Kings
Series, Science, Documentary
Satellite images capture two conjoined circular structures embedded in the landscape of Ireland; experts investigate an ancient site linked to legendary figures and the elusive hunt for the Ark of the Covenant.
What on Earth?
04:00 - 05:00
What on Earth?
Mystery of the Welsh Mine
Series, Science, Documentary
Satellite images capture monumental ruins surrounded by bizarre feather-shaped structures on a Welsh mountaintop; experts investigate a hidden tunnel containing the remains of an abandoned slate mine with an exploitative and deadly past.
What on Earth?
05:00 - 06:00
What on Earth?
Secret Soviet Spacecraft
Series, Science, Documentary
Satellite images capture a bizarre industrial complex in the remote desert expanse of Kazakhstan; experts investigate and uncover a massive hangar containing the most expensive spacecraft in the history of Soviet-era space exploration.
What on Earth?
06:00 - 07:00
What on Earth?
Circles of the High Kings
Series, Science, Documentary
Satellite images capture two conjoined circular structures embedded in the landscape of Ireland; experts investigate an ancient site linked to legendary figures and the elusive hunt for the Ark of the Covenant.