Catch the waxing gibbous Moon tonight at twilight! 🌕️ Look east-southeast around 5:00PM, then again 60-90 minutes later to spot the Pleiades star cluster nearby. ✨️ (Source: adlerplanetarium.org)
4 months ago, Lisa Swaney
Catch the waxing gibbous Moon tonight at twilight! 🌕️ Look east-southeast around 5:00PM, then again 60-90 minutes later to spot the Pleiades star cluster nearby. ✨️ (Source: adlerplanetarium.org)
Check out this cool article! Feel free to comment how many of the 🔟 that you have seen with your own eyes! SOURCE: earthsky.org
https://earthsky.org/astronomy-essentials/what-are-the-brightest-objects-in-our-solar-system/
4 months ago, Lisa Swaney
It's hard to believe that this is the last week in January!

Check out our schedule for this week and hopefully we'll see you under the dome soon!
#wherethestarshangout
4 months ago, Lisa Swaney
It's hard to believe that this is the last week in January! Check out our schedule for this week and hopefully we'll see you under the dome soon! #wherethestarshangout
Take a peek at Saturn near the waxing crescent moon tonight! It's always a treat seeing a planet in our evening skies! SOURCE: adlerplanetarium.org
4 months ago, Lisa Swaney
Take a peek at Saturn near the waxing crescent moon tonight! It's always a treat seeing a planet in our evening skies! SOURCE: adlerplanetarium.org
Retzer's Wild Winter Night is 3 weeks away!

Don't forget that we'll be featuring planetarium shows AND Michelle Thaller for another fascinating presentation "Black Holes: Monsters & Myths." Grab your tickets for Wild Winter Night ahead of time by going to waukeshacounty.gov!
4 months ago, Lisa Swaney
Retzer's Wild Winter Night is just over three weeks away! Don't forget that we'll be featuring planetarium shows AND Michelle Thaller is returning for another fascinating presentation "Black Holes: Monsters & Myths." Grab your tickets for Wild Winter Night ahead of time by going to waukeshacounty.gov! #wherethestarshangout
Since the Artemis mission will be heading back to the moon early this year, this "Thoughtful Thursday" seems pretty fitting.

#wherethestarshangout
4 months ago, Lisa Swaney
Since the Artemis mission will be heading back to the moon early this year, this "Thoughtful Thursday" seems pretty fitting. #wherethestarshangout
Join us for an excellent show today! We'll be featuring ""Cleopatra's Universe"" at 11am. Grab your tickets at the door or purchase them ahead of time at ticketleap.events/events/hdplanetarium to save your seats!

#wherethestarshangout
4 months ago, Lisa Swaney
Join us for an excellent show today! We'll be featuring ""Cleopatra's Universe"" at 11am. Grab your tickets at the door or purchase them ahead of time at ticketleap.events/events/hdplanetarium to save your seats! #wherethestarshangout
The Retzer Nature Center building is closed today in observance of Martin Luther King Jr Day.

Here are some wise words from MLK for your Monday morning...

#wherethestarshangout
4 months ago, Lisa Swaney
The Retzer Nature Center building is closed today in observance of Martin Luther King Jr Day. Here are some wise words from MLK for your Monday morning... #wherethestarshangout
Here's the schedule for this week! Hope to see you under the dome! #wherethestarshangout
4 months ago, Lisa Swaney
Here's the schedule for this week! Hope to see you under the dome! #wherethestarshangout
We're celebrating Winter JanBoree at the planetarium today! From 11am-2pm, we'll feature the show ""Aurora: Lights of Wonder."" It will run every 45 minutes & is FREE. The planetarium is one of many locations that has special activities scheduled throughout the day.
4 months ago, Lisa Swaney
We're celebrating Winter JanBoree at the Horwitz-DeRemer Planetarium today! From 11am-2pm, we'll feature the show ""Aurora: Lights of Wonder."" It will run every 45 minutes and is FREE for visitors. The planetarium is one of many locations that has special activities scheduled throughout the day (and over the next week) so hopefully you are able to enjoy some of them around the Waukesha area! #wherethestarshangout
Happy Friday, all! Do you have plans this weekend?

Because, the moon reaches the new moon phase officially Sunday! Therefore, if you can, and the weather cooperates, it would be an ideal few nights for stargazing!

#wherethestarshangout
4 months ago, Lisa Swaney
Happy Friday, all! Do you have plans this weekend? Because, the moon reaches the new moon phase officially Sunday! Therefore, if you can, and the weather cooperates, it would be an ideal few nights for stargazing! #wherethestarshangout
⏰ LAST CHANCE! Voting ends TODAY for Milwaukee Magazine’s Best of the Burbs!
Please vote for Horwitz-DeRemer Planetarium as the top attraction 💫
👉 vote.milwaukeemag.com → Recreation & Outdoors → Day Outing → Vote!
#WhereTheStarsHangOut #MilwaukeeMag
4 months ago, Lisa Swaney
⏰ LAST CHANCE! Voting ends TODAY for Milwaukee Magazine’s Best of the Burbs! Please vote for Horwitz-DeRemer Planetarium as the top attraction 💫 👉 vote.milwaukeemag.com → Recreation & Outdoors → Day Outing → Vote! #WhereTheStarsHangOut #MilwaukeeMag
What to do today? Join us at Horwitz-DeRemer Planetarium at 11am for a show + live star talk! #wherethestarshangout
4 months ago, Lisa Swaney
What to do today? Join us at Horwitz-DeRemer Planetarium at 11am for a show + live star talk! #wherethestarshangout
Thank you to everyone who contributed or shared our Giving Tuesday campaign last month. We're thrilled to share that we raised nearly $2,500 that will be matched by the FRIENDS of the Horwitz-DeRemer Planetarium!

#givingtuesday #wherethestarshangout
4 months ago, Lisa Swaney
Thank you to everyone who contributed or shared our Giving Tuesday campaign last month. We're thrilled to share that we raised nearly $2,500 that will be matched by the FRIENDS of the Horwitz-DeRemer Planetarium! #givingtuesday #wherethestarshangout
⏰ 4️⃣ days left to vote!
The Horwitz-DeRemer Planetarium is nominated for Milwaukee Magazine’s Best of the Burbs 🌟

Vote daily:
➡️ vote.milwaukeemag.com
➡️ Recreation & Outdoors → Day Outing
➡️ Horwitz-DeRemer Planetarium

Thank you for the support!
#wherethestarshangout ✨
4 months ago, Lisa Swaney
⏰ 4️⃣ days left to vote! The Horwitz-DeRemer Planetarium is nominated for Milwaukee Magazine’s Best of the Burbs 🌟 Vote daily: ➡️ vote.milwaukeemag.com ➡️ Recreation & Outdoors → Day Outing ➡️ Horwitz-DeRemer Planetarium Thank you for the support! #wherethestarshangout ✨
Happy first full week of January!

Check out our happenings this week. And, we'll be participating in Waukesha JanBoree this Saturday, offering FREE planetarium showings to ""Aurora: Lights of Wonder."" Join us if you can!

#wherethestarshangout
4 months ago, Lisa Swaney
Happy first full week of January! Check out our happenings this week. And, we'll be participating in Waukesha JanBoree this Saturday, offering FREE planetarium showings to ""Aurora: Lights of Wonder."" Join us if you can! #wherethestarshangout
Looking for a family-friendly activity today? Come over to the Horwitz-DeRemer Planetarium!

11:00am- Defying Gravity
1:00pm- Messengers of Time & Space

Tickets are $5 & can be purchased at hdplanetarium.ticketleap.com. We highly suggest purchasing tickets ahead of time.

4 months ago, Lisa Swaney
"Looking for a family-friendly activity today? Come over to the Horwitz-DeRemer Planetarium! At 11:00am, we'll feature ""Defying Gravity."" Later at 1:00pm, come check out the ""new-to-us"" show ""Messengers of Time & Space."" Tickets are $5.00 per person and can be purchased at hdplanetarium.ticketleap.com. We always highly suggest purchasing tickets ahead of time. But, walk-ins are welcome, subject to availability. #wherethestarshangout"""
The biggest planet takes the spotlight! 🌕
On Jan 10, Jupiter reaches opposition—opposite the Sun and at its brightest (mag –2.7). Its disk spans ~47", making it an easy target for stargazers. 🔭✨
4 months ago, Lisa Swaney
The biggest planet takes the spotlight! 🌕 On Jan 10, Jupiter reaches opposition—opposite the Sun and at its brightest (mag –2.7). Its disk spans ~47", making it an easy target for stargazers. 🔭✨

⏰ Voting closes in 6 days! Please vote for the Horwitz-DeRemer Planetarium in Milwaukee Magazine’s Best of the Burbs ⭐️
👉 vote.milwaukeemag.com
👉 Recreation & Outdoors
👉 Category: Day Outing
👉 Select Horwitz-DeRemer Planetarium
👉 Click Vote!

4 months ago, Lisa Swaney
⏰ Voting closes in 6 days! Please vote for the Horwitz-DeRemer Planetarium in Milwaukee Magazine’s Best of the Burbs ⭐️ It’s quick & easy: 👉 vote.milwaukeemag.com 👉 Recreation & Outdoors 👉 Category: Day Outing 👉 Select Horwitz-DeRemer Planetarium 👉 Click Vote! You can vote daily—spread the word! Thank you for your support ✨
Join us for Wild Winter Night!
February 13, 2026 at Retzer Nature Center
$6/person
Free for Ages 2 & Under, Friends of Retzer Members and Friends of the Horwitz-DeRemer Planetarium Members; however, all must register.
• Self-guided hike by candlelight from 6:00 pm - 9:00 pm (Snowshoes will be available if conditions allow; rental fee included with registration)
• View the night sky with telescopes
• Mama D’s Coffee will be selling warm beverages and sweets in the Community Room
• “Cosmic Questions: Answers & Mysteries” Planetarium Show (6:45pm & 7:30pm)
• Presentation by Michelle Thaller (6:15pm and 8:15pm), former Assistant Director for Science Communication at NASA Goddard Space Flight Center
• Enjoy stories around the indoor "fire" and outside around the real fire

Register Here: https://bit.ly/2026WWN
5 months ago, Lisa Swaney
Join us for Wild Winter Night! February 13, 2026 at Retzer Nature Center $6/person Free for Ages 2 & Under, Friends of Retzer Members and Friends of the Horwitz-DeRemer Planetarium Members; however, all must register. • Self-guided hike by candlelight from 6:00 pm - 9:00 pm (Snowshoes will be available if conditions allow; rental fee included with registration) • View the night sky with telescopes • Mama D’s Coffee will be selling warm beverages and sweets in the Community Room • “Cosmic Questions: Answers & Mysteries” Planetarium Show (6:45pm & 7:30pm) • Presentation by Michelle Thaller (6:15pm and 8:15pm), former Assistant Director for Science Communication at NASA Goddard Space Flight Center • Enjoy stories around the indoor "fire" and outside around the real fire Register Here: https://bit.ly/2026WWN