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Tag: AstroFan

The spotty surface of Betelgeuse shown with two, large, bright, star spots. The spots potentially represent enormous convective cells rising from below the supergiant's surface. They are bright because they're hotter than the rest of the surface, but both spots and surface are cooler than the Sun.

Betelgeuse: A Supernova in the Works

Sunday April 5th
Bianca Anderson

Header Image: The spotty surface of Betelgeuse shown with two, large, bright, star spots. The spots potentially represent enormous convective cells rising from below the supergiant’s surface. They are bright because they’re hotter than the rest of the surface, but both spots and surface are cooler than the Sun. Image Credit: Xavier Haubois (Observatoire de […]

Pedestrians walking (during Chicagohenge) across a crosswalk while the Sun sets in the distance with the Willis Tower in view.

AstroFan: Understanding Chicagohenge

Thursday March 12th
Bianca Anderson

Header Image: Chicagohenge as seen from West Adams Street. Image Credit: Tim Hara Greetings fellow Chicagoans! It is almost that time of year when nature and architecture harmoniously come together to create the phenomenon known as Chicagohenge. For those who don’t know, Chicagohenge occurs twice a year and happens when the Sun directly lines up […]

Look Up at the Big Dipper and the Little Dipper.

AstroFan: Tale of the Drinking Gourd

Tuesday February 18th
Bianca Anderson

Arguably, one of the most well-known fixtures of our night sky is the Big Dipper. But did you know that this night-sky staple once served as a beacon to freedom here in America during the time of the Underground Railroad? In the early-to-mid 19th century, countless American slaves used the Big Dipper⁠—aka the Drinking Gourd⁠—as […]

Hubble Deep Field Image

AstroFan: Galaxy Types!

Friday January 24th
Bianca Anderson

Header Caption: This Hubble Deep Field image shows a snapshot of the diverse types of galaxies in our universe. Image Credit: NASA/JPL/STScI Hubble Deep Field Team Did you know that up until the last century, humans believed that our Milky Way was the only galaxy in the known universe? Today, we now know that this […]

This is an image of the Pleiades star cluster. You can see in this image faint clouds of bluish nebulae and dozens of bright stars scattered in the distance.

AstroFan: The Interstellar Medium and Nebulae

Saturday December 28th
Bianca Anderson

Image Caption: An example of nebulae (and the interstellar medium) can be found in this picture of the Pleiades, an open cluster consisting of approximately 3,000 stars at a distance of 400 light-years (120 parsecs) from Earth in the constellation of Taurus. Image Credit: NASA, ESA, AURA/Caltech, Palomar Observatory Even the most novice of stargazers are […]

This image depicts the thick ring of dust that can obscure the energetic processes that occur near a supermassive black hole of an active galactic nuclei.

AstroFan: A Feast Fit For A Black Hole

Friday November 29th
Bianca Anderson

Header Image: An artist’s illustration of a thick ring of dust near the supermassive black hole of an active galactic nuclei. Image Credit: NASA / SOFIA / Lynette Cook Ah yes, it is the day after Thanksgiving, and I bet you’re currently dealing with the inevitable ‘post-feast malaise’. What if I told you that at this very […]

This image depicts a cluster of distorted galaxies. The distorted shapes in the cluster shown here are distant galaxies, from which the light is bent by the gravitational pull of dark matter within the cluster of galaxies.

AstroFan: The Spooky Case of Dark Matter

Sunday October 27th
Bianca Anderson

Header Image: The distorted shapes in the cluster shown here are distant galaxies, from which the light is bent by the gravitational pull of dark matter within the cluster of galaxies. Image Credit: NASA, ESA, M. Postman (STScI), and the CLASH Team Greetings fellow astro-fans! Halloween is almost here, and as you know, it is […]

Image of Comet 67P/Churyumov-Gerasimenko.

AstroFan: The Comet That Came From Afar

Monday September 30th
Bianca Anderson

Header Image: While C/2019 Q4 (Borisov) is too far away for us to get detailed images, it probably looks something like this image taken on March 27, 2016, by the Rosetta spacecraft, 329 km from the nucleus of Comet 67P/Churyumov-Gerasimenko. The image measures 28.7 km across. Image Credit: ESA/Rosetta/NavCam The Day the Adler Met an […]

Volunteers using the web-based Milky Way Project brought star-forming features nicknamed "yellowballs" to the attention of researchers, who later showed that they are a phase of massive star formation. The yellow balls -- which are several hundred to thousands times the size of our solar system -- are pictured here in the center of this image taken by NASA's Spitzer Space Telescope. Infrared light has been assigned different colors; yellow occurs where green and red overlap. The yellow balls represent an intermediary stage of massive star formation that takes place before massive stars carve out cavities in the surrounding gas and dust (seen as green-rimmed bubbles with red interiors in this image). Infrared light of 3.6 microns is blue; 8-micron light is green; and 24-micron light is red.

AstroFan: …And They Were All Yellow!

Monday August 26th
Bianca Anderson

Header Image Credit: NASA/JPL-Caltech “The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies, were made in the interiors of collapsing stars. We are made of starstuff.” ― Carl Sagan Even if you’re just a novice space enthusiast, I’m sure you’ve heard some variation of […]

Artist's Illustration of Enceladus

AstroFan: Over the Moon for Enceladus

Monday July 22nd
Bianca Anderson

Header Image Caption: An artist’s rendition of Enceladus, Saturn’s 6th largest moon. Image Credit: NASA/JPL-Caltech This past weekend, the Adler Planetarium celebrated the 50th anniversary of Apollo 11⁠—a mission that brought us to a whole new world, our Moon.  It’s pretty undeniable that our Moon is spectacular. It’s our only natural satellite, it’s composed of […]

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