Astronomy Fact of the Day: December 15, 2018

Today in 1970 the Soviet mission Venera 7 landed on Venus. It first took atmospheric readings before landing on the surface. This mission confirmed that humans could not survive on Venus. Learn more about Venus.

Astronomy Fact of the Day: December 14, 2018

On this date in 1546, Tycho Brahe was born. The observations made by this astronomer helped support a sun centered model of the solar system. During his life Brahe cataloged over 1000 stars. Learn more about Tycho Brahe.

McDonnell Planetarium bow tradition began as 1966 prank

For many St. Louisans, the big red bow and ribbon going up around the James S. McDonnell Planetarium symbolizes the official start of the holiday season. What many people don’t know about this tradition is that it actually began as a prank. On December 17, 1966, 15 to 20 students from the Washington University in… Continue reading

Astronomy Fact of the Day: December 13, 2018

Image by: Asim Patel [CC BY-SA 3.0], from Wikimedia Commons The Geminid meteor shower peaks tomorrow. This is one of the best meteor showers each year producing roughly 120 meteors per hour at their peak. Your best chance to see them will be tonight into tomorrow morning. Learn more about the Geminids.

Night Sky Update For The Week of December 11, 2018

This is the Saint Louis Science Center’s NIGHT SKY UPDATE for the week of Tuesday, December 11. Times are given as local St. Louis time in Central Standard Time due to the time change coming this Sunday. For definitions of terminology used in the night sky update, click the highlighted text. Information updated weekly or… Continue reading

Astronomy Fact of the Day: December 10, 2018

Believe it or not the Earth is closer to the sun during the winter season but because of the tilt of Earth’s axis we receive less direct sunlight making it cold in the northern hemisphere. Learn about Axial Tilt.