Join us at the Heide Observatory for a Comet Watch as we observe Comet C/2025 R3 (PANSTARRS), a distant icy visitor from the outer solar system making a rare pass through the inner night sky. During this guided observing session, guests will learn what comets are made of, where they come from, and why their […]
Enjoy a relaxing evening at Wednesday Under the Stars, hosted at the picturesque Heide Observatory. Settle into a zero-gravity chair with your favorite beverage and embark on an unforgettable journey through the night sky as our expert guides use laser pointers to highlight stars, planets, constellations, and galaxies above. Listen to the captivating stories behind […]
Experience the awe-inspiring Through the Lens event at The Heide Observatory, where celestial wonders come to life as you peer through our powerful 17-inch telescope to observe binary stars, distant planets, and shimmering galaxies. While awaiting your turn inside the dome, join our knowledgeable guides outdoors for a laser-assisted sky tour, connecting what you see […]
Join us for Small Eyes Under the Skies at The Heide Observatory, a family-friendly astronomy adventure that begins with an interactive walk through a scale model of our solar system across the meadow and concludes with a telescope viewing of planets and other celestial wonders. Events are weather permitting and will be rescheduled if cloud […]
Wednesday, April 22 (8:00 pm - 10:00 pm) Join us at the Heide Observatory for the Lyrid Lightshow, a classic spring meteor shower known for fast-moving meteors and the occasional bright fireball. The Lyrids originate from debris left behind by Comet C/1861 G1 (Thatcher), which Earth passes through each April as it orbits the Sun. […]
Wednesday, April 22 (10:15 pm - 12:15 am) Join us at the Heide Observatory for the Lyrid Lightshow, a classic spring meteor shower known for fast-moving meteors and the occasional bright fireball. The Lyrids originate from debris left behind by Comet C/1861 G1 (Thatcher), which Earth passes through each April as it orbits the Sun. […]
Experience the awe-inspiring Through the Lens event at The Heide Observatory, where celestial wonders come to life as you peer through our powerful 17-inch telescope to observe binary stars, distant planets, and shimmering galaxies. While awaiting your turn inside the dome, join our knowledgeable guides outdoors for a laser-assisted sky tour, connecting what you see […]
Help us celebrate Arbor Day and Earth Week at our Arboretum Cleanup Volunteer Day on Friday, April 24 at 10 am! For more info, please email Nicole, our Conservation Land Manager at nicole@hawthornhollow.org!
Join us for Small Eyes Under the Skies at The Heide Observatory, a family-friendly astronomy adventure that begins with an interactive walk through a scale model of our solar system across the meadow and concludes with a telescope viewing of planets and other celestial wonders. Events are weather permitting and will be rescheduled if cloud […]
Rescheduled for 4/26/2026 due to flooding. Celebrate Earth Week with a family-friendly 3.5k hike through the heart of Hawthorn Hollow Nature Sanctuary (including NEW trails)! Explore a rich variety of native ecosystems, from open prairie and wetlands to conifer and hardwood forests, while stamping your very own Habitat Passport along the way. Every participant receives […]