Astronomy Fact of the Day: December 4, 2018

On this date in 1996 the Mars Pathfinder mission launched. This mission included the first rover to explore the surface of Mars which was named Sojourner. Learn more about the Pathfinder Mission.

Astronomy Fact of the Day: December 3, 2018

Pioneer 10 achieved the first flyby of the planet Jupiter on this date in 1973. Since this mission there have been 8 other spacecraft that flew by or orbited Jupiter. Learn more about Jupiter.

Astronomy Fact Of The Day: December 2, 2018

Today near earth asteroid 2018 TG6 will fly by Earth. Its closest approach will be about 4 times the distance to the moon. This 12 meter asteroid poses no threat to Earth. Learn more about tracking small solar system bodies.

Astronomy Fact of the Day: November 29, 2018

Tonight the moon will rise just before midnight. Using binoculars look to the moon’s southern highlands and you will find Crater Clavius. This was site of a fictional moon base in 2001: A Space Odyssey. Learn more about Crater Clavius.

Astronomy Fact of the Day: November 28, 2018

Image Credit : Till Credner, CC BY-SA 3.0 Looking north at 8pm you will find the house-shaped constellation Cepheus. On the southern edge of Cepheus you can find the star Mu Cephei. This red supergiant is about 1,650 times the size of the sun. Learn more about the constellation of Cepheus.

Night Sky Update For The Week of November 27, 2018

This is the Saint Louis Science Center’s NIGHT SKY UPDATE for the week of Tuesday, November 27. 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: November 27, 2018

The moon rises tonight at 9:28pm. Using binoculars you will find a lunar escarpment called Rupes Altai on the southern half of the terminator. This cliff is about 256 miles long. Learn more about Rupes Altai