Adler Planetarium

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Welcome to the Adler's Blogs! Adler Transmissions provides you with the latest news and views from Adler's astronomers, curators, partners, and programming staff. From Earth to distant planets and beyond, This Week in Space discusses the latest discoveries and accomplisments in science, space, and technology.

See A Comet!

The last time Comet Lovejoy visited our area of the solar system was 11,000 years ago, near the end of the last Ice Age. 


Partial Solar Eclipse

The world is a wondrous and amazing place, even if you aren't paying that close attention. But if you do have a little desire to see something out of the ordinary, then a little planning can go a long way to give you a spectacle worth seeing.


Chicagohenge: When All Roads Lead to the Sun

The coming and goings of the seasons produce changes that we all recognize. The arrival of fall brings cooler temperatures and the riotous colors of autumn.


Planning for the 2017 Solar Eclipse

Have you made your hotel reservations yet? Because in three years, on August 21, 2017, you will have the chance to witness one of the most awesome spectacles of Nature --- a total eclipse of the Sun. 


Watch for Falling Stars!

On any given night, the sky is alive with light --- the Moon, planets, and the stars. If you stare at the sky long enough, you will see a "shooting star" --- a brief streak of light, blazing a trail across the sky.


To See the Cosmos Anew

We all have heroes in our lives - parents, relatives, teachers.  These are the people who watch over our shoulders every day, giving us encouragement, gentle criticism, and watching to make sure that we get up and dust off our chaps each time we get thrown off the horse.


Remembering John Dobson

When I was a boy growing up, I longed to look at the stars through a telescope. I'd lay out in my backyard, staring up at the stars and Moon, and wonder what they would look like up close.


The Perilous Journey of Comet ISON

The vast dark past Pluto is a deep freeze filled with a trillion fragments of ice and rock, the left-over detritus from the formation of the Sun and planets.


Tracking the Sun

The Sun is in constant motion in the sky. We see it every day rising in the east, soaring overhead, and sinking slowly in the west.  This daily motion is a consequence of the Earth spinning on its axis.


Marking Time in the Modern World

The sky is filled with a clockwork of motions that ticks off the seconds, days, and aeons as precisely and regularly as the finest timepiece humans have ever made. The motions in the sky are a combination of the Earth’s orbital motion around the Sun, the spin of the Earth on its axis, and the fact that the North Pole of the Earth is not pointing straight up from its orbit.