The Pajarito Environmental Education Center (PEEC) will present "Unveiling The Invisible Universe", 2-2:30 p.m. on Saturday. Aug. 9 in the Planetarium at the Nature Center, 2600 Canyon Road.

This program is aimed at children 8+. Planetarium programs not recommended for children 4 and under. Admission: $8/adult, $6/child, $20/family.

For thousands of years humans observed the light coming from the night sky with their eyes. In the beginning of the 17th century, the invention of the telescope by Galileo revolutionized our knowledge of the Universe.

Finally, in the 20th century with the advent of rockets, it became possible to go above the earth's atmosphere and observe X-ray and gamma ray radiation, which are the marks of the hot and violent Universe.

But it is not only light that can give us information about the cosmos. Neutrinos and cosmic rays also provide vital information. Finally, the detection by the LIGO experiment of gravitational waves from two merging black holes opened a new window in astrophysics.