25 min Ages 6 and up, Adults The Sun has shone on our world for four and a half billion years. The light that warms our skin today has been felt by every person who has ever lived. It is our nearest star and our planet’s powerhouse, the source of the energy that drives our […]

It’s 10 o’clock: Do you know where your stars are? Let’s do a little scouting.... Each season brings a fresh batch of stars to dazzle our eyes and constellations to tell nighttime stories about. We’ll give you a quick tour of the Summer sky, and tips on how to identify a few of the major […]

(28 minutes) 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 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 […]