Header Image: The Sun sets during Chicagohenge as a CTA train in Chicago, Illinois travels towards it. Image Credit: @cdats It’s a great month for planet viewing and observing the Earth-and-sky occurrence known as “Chicagohenge”, in September 2020. Start your planet viewing during evening twilight by looking low in the southern skies to see the […]

Header Image: Looking through a telescope at the Adler Planetarium. Editor’s Note: This blog was originally published in August 2020 and was updated in August 2024 with more current information. One question we often get at the Adler is: “I’m a beginner. What’s the best telescope for me?”  The really short answer is, “The best […]

Header Image: In this 30 second exposure, a meteor streaks across the sky during the annual Perseid meteor shower Friday, Aug. 12, 2016 in Spruce Knob, West Virginia. Photo Credit: NASA/Bill Ingalls Hello stargazers! One of the best annual meteor showers of the year occurs this month, August 2020. The Perseid meteor shower is expected […]

Header Image: Look Up to see Jupiter and Saturn are among the stars of Sagittarius the Archer throughout July 2020. With clear skies, a clear view to the eastern horizon, and good timing, you may be able to see all five naked-eye visible planets this month, July 2020. The brilliant planet Jupiter starts the show, […]

Header Image: This celestial globe from the Adler Planetarium’s collection shows the 88 constellations and their corresponding boundaries—which are the light blue lines on the surface of this globe—defined by the International Astronomical Union (IAU).  On January 10, 2016, I was among the millions of music fans who staggered at the news that David Bowie […]

This year’s summer solstice occurs on the 20th, at 4:44 p.m. Central Daylight Time. On that date the Sun rises just before 5:15 a.m. and doesn’t set until shortly after 8:30 p.m. Between those times, the Sun gets very high in the sky. Keep in mind this takes place in the Northern Hemisphere; those in […]

What’s better than the near approach of a comet? How about the near approach of two comets? That’s what we’re expecting during the month of May, 2020! Comet C/2019 Y4, also known as Comet ATLAS, was discovered late last December. It will come closest to Earth on May 23rd, at a distance of about 72 […]

Happy April, stargazers! The closest supermoon of the year takes place this month, April 2020. Supermoon is a nickname that describes a Full Moon that occurs within 10% of its closest approach to Earth. Astronomers refer to supermoons as a perigean Full Moon. The April 7th Full Moon is just under 222,000 miles from Earth. […]

The three naked-eye-visible planets outside Earth’s orbit will appear less than 20 degrees apart in the sky this month, March 2020. The planets Mars, Jupiter, and Saturn can be seen low in the southeast just as morning-twilight begins to lighten the sky. Jupiter is the brightest of the three, and it serves as a guidepost […]

Header Image: Moon rising above the Adler Planetarium. Image Credit: Chris Smith Update: This blog is revised each year with upcoming date of supermoons. In 2023, four supermoons will occur! But what is a supermoon exactly? And why is it so “super”? What Is a Supermoon? Supermoon is a nickname that describes a Full Moon […]