In July 2022, NASA’s James Webb Space Telescope released its first images, looking further back in time than ever before to show our universe in stunningly beautiful detail. But that was just the beginning. With tons of new data and spectacular images flooding in, Webb is allowing scientists to peer deep in time to try to answer some of astronomy’s biggest questions. When – and how – did the first stars and galaxies form? And can we see the fingerprints of life in the atmospheres of distant worlds – or even within our own solar system?

NASA's James Webb Space Telescope, from its conception to completion.

NOVA scienceNOW is a News magazine version of the long-running and venerable PBS science program Nova. Premiering on January 25, 2005, the series was originally hosted by Robert Krulwich, who described it as an experiment in coverage of "breaking science, science that's right out of the lab, science that sometimes bumps up against politics, art, culture". At the beginning of season two, Neil deGrasse Tyson replaced Krulwich as the show's host. Tyson announced he would leave the show and was replaced by David Pogue beginning season 6.

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