How the Universe Works
We've all heard of the Death Star but the universe has its own gallery of killer stars worthy of any sci-fi film. From assassin supernovas that vaporize planets and sterilize entire regions of the galaxy to vampire stars that drain the life force from their neighbors, we're counting down NASA's top six most-wanted stars.Start: 2026-10-24-142600
end: 2026-10-24-151400
How the Universe Works
The New Horizons probe sped past the dwarf planet Pluto in 2015 and captured the first-ever closeup images of the mysterious world. While scientists expected the planet to be gray and heavily cratered, they were surprised to find mountain ranges, active glaciers and an atmosphere streaked with organic chemistry. The geologically alive planet has many secrets hiding below, too -- a warm internal ocean of liquid water that could nurture life nearly four-billion miles from the sun.Start: 2026-10-24-151400
end: 2026-10-24-160200
How the Universe Works
The two Voyager spacecraft have traveled farther than any human-made object in history, and as they reach interstellar space, experts explore their most astonishing discoveries and how their extended operation has transformed.Start: 2026-10-24-160200
end: 2026-10-24-165000
How the Universe Works
Dark Matter is thought to be the cosmic glue that holds the universe together, yet the search for it continues to eluded scientists today; now, physicists have developed dozens of theories to determine if this mysterious substance could actually exist.Start: 2026-10-24-165000
end: 2026-10-24-174000
