Astronomy Fact of the Day: June 14, 2018

Tonight the moon will reach perigee. This is when the moon is closest to Earth and is what some call supermoon. Perigee occurs every 27.5 days which is the length of an anomalistic month.

Astronomy Fact of the Day: June 12, 2018

Only four spacecraft have visited Saturn. Pioneer 11 and Voyager 1 and 2 flew by Saturn. The Cassini mission stayed in orbit around Saturn studying the ringed planet from 2004 to 2017.

Night Sky Update For The Week of June 12, 2018

This is the Saint Louis Science Center’s NIGHT SKY UPDATE for the week of Tuesday, June 12. All times are given as local St. Louis time (Central Daylight Time). For definitions of terminology used in the night sky update, click the highlighted text. Information updated weekly or as needed. Join us for our next star… Continue reading

Astronomy Fact of the Day: June 09, 2018

Tonight Saturn rises at 9:34pm. By 11pm you will also find the famous Teapot asterism just below Saturn in the southeast. This pattern of stars helps us identify the constellation Sagittarius.

Astronomy Fact of the Day: June 07, 2018

Did you know that Earth’s atmosphere contains 78% Nitrogen gas and 21% Oxygen gas. The atmosphere of Venus contains over 90% carbon dioxide gas and less than 5% Nitrogen gas. Venus is visible in the west around 9:00 tonight.