Mueller Planetarium is showcasing two new shows — an exploration of the lifecycle of stars and a night sky adventure with Big Bird and Elmo — as part of its winter schedule.

The new schedule, which started Dec. 11, includes “Astralis” and “One World, One Sky: Big Bird’s Adventure.” Both shows play on Saturdays and Sundays, with “One World, One Sky” at 2 p.m., followed by “Astralis” at 3 p.m. The winter schedule also includes “A Starry Tale” at 7 p.m. on Thursdays.

“One World, One Sky” follows Big Bird and Elmo as they explore the night sky with Hu Hu Zhu, a Muppet from Zhima Jie, the Chinese co-production of Sesame Street. Together, they take an imaginary trip from Sesame Street to the moon where they discover how different it is from Earth. Running time is 25 minutes.

“Astralis” presents the visually enchanting life cycle of stars with an easily understandable narration. From the birth of a star in a stellar nursery to its journey towards a black hole or supernova, discover the phenomenon of a star’s existence. The show is followed by a presentation of the current night sky. Running time is 25 minutes.

“A Starry Tale” presents with computer graphics the legend of Astraea, the goddess of justice, who is closely tied with the constellation Libra, the scales. The show explores the world of mythology and human thought handed down from ancient times to the future. Running time is 35 minutes.

The schedule is subject to change. For more information about fulldome shows, go to the planetarium’s website or call 402-472-2641.

The University of Nebraska State Museum of Natural History in Morrill Hall and Mueller Planetarium are south of 14th and Vine streets. Parking is free in front of the museum. Planetarium tickets include museum admission and can be purchased at the museum’s front desk the day of the show. Admission is $10 for adults (19 and older) and $6 for children. Admission to the museum is free for UNL faculty, staff, students and immediate family members (with a valid NCard). Admission to planetarium shows for faculty, staff, students and family is $4 each.

For more information on the museum, go to http://www.museum.unl.edu.