Mrs. Holz' Earth Science

Mrs. Holz' Earth Science Earth Science in the News, with a focus on geology, astronomy, and meteorology.

Jill Holz - High School Science Teacher, Instructional Coach, and National Geographic Certified Educator in the suburbs of Minneapolis, Minnesota.

Happy Winter to those in the Northern Hemisphere and Happy Summer to those in the Southern Hemisphere! In Minneapolis, M...
12/21/2025

Happy Winter to those in the Northern Hemisphere and Happy Summer to those in the Southern Hemisphere! In Minneapolis, Minnesota it is the day with the least amount of sunlight for the year. But the future looks brighter…

🌑 December Solstice: 12.21.25
Sunrise: 7:48 AM
Sunset: 4:34 PM
Total daylight: 8 hrs 46 mins

Looking ahead -
❤️ Valentine’s Day: 02.14.25
Sunrise: 7:14 AM
Sunset: 5:40 PM
Total daylight: 10 hrs 26 mins

⏱️ Valentine’s Day has 1 hour and 40 minutes more daylight than the December Solstice.

Happy ! 🌞✨ This is a day humans have celebrated for thousands of years. In the Northern Hemisphere it marks the longest night of the year; in the Southern Hemisphere, the longest day. Curious why this day still holds such meaning? Read more and watch our video to see what’s happening in the sky, wherever you live on Earth:
https://earthsky.org/astronomy-essentials/everything-you-need-to-know-december-solstice/

📸 Paolo Bardelli.

🌎The Winter Solstice for the Northern Hemisphere in 2025 occurs on Sunday, December 21, 2025, at 9:03am CST.🌍This is the...
12/20/2025

🌎The Winter Solstice for the Northern Hemisphere in 2025 occurs on Sunday, December 21, 2025, at 9:03am CST.🌍

This is the shortest day and longest night as the Earth's tilt is furthest from the Sun, officially beginning the winter season and signaling the gradual return of longer days. This astronomical event also marks the Summer Solstice for the Southern Hemisphere, it's the longest day. ☀️

Date: December 21, 2025 🗓️

Time (CST): 9:03am 🕘

Significance: Marks the first day of astronomical winter, the moment of maximum darkness, and the start of the Sun's northward journey in the sky ☀️

What Happens:
The Sun reaches its southernmost point in the sky, with its rays directly over the Tropic of Capricorn. It is the southernmost sunrise and sunset, and (in the Northern Hemisphere) the shortest day and longest night. The Southern Hemisphere celebrates its longest day and the start of summer. timeanddate.com

Science Resources 👩‍💻
For some of the best information, side notes, and images related to the science of the December Solstice, check out: https://earthsky.org/astronomy-essentials/everything-you-need-to-know-december-solstice/ EarthSky

Traditions 🕯️
December solstice traditions celebrate the rebirth of light with ancient themes of renewal, featuring candle lighting, bonfires, feasting, evergreens, and specific rituals like Yule logs, often connecting to modern Christmas customs, while also including Indigenous storytelling and personal reflection on cycles of nature. People gather for hearty meals, decorate with holly/mistletoe, watch sunrises, and use light (candles, fire) to mark the shortest day and the return of longer days.

Traditions around the World 🗺️
https://www.rd.com/list/winter-solstice-traditions/ Reader's Digest

Common Traditions:
Light & Fire: Lighting candles, lanterns, or bonfires (Yule logs) to welcome the sun's return.

Feasting: Sharing hearty winter meals with roasted foods, spices, and warm drinks, often with loved ones.

Decorations: Using evergreens, holly, mistletoe, and nature's tokens (berries, branches) for indoor decor, as seen in Roman and Celtic traditions.

Reflection: Journaling, meditation, setting intentions, or creating vision boards for the coming year.

Storytelling: Sharing sacred stories, as practiced by some Indigenous cultures like the Ojibwe, or telling cozy winter tales.

Rituals & Activities🎉
Yule Altar: Creating a special space with candles, symbols of light, and meaningful objects.

Sunrise/Sunset Watching: Welcoming the dawn or marking the longest night, sometimes with music or quiet observation.

Nature Crafts: Making wreaths from natural materials or ice lanterns.

Symbolic Acts: Taking a citrus-infused bath, planting bulbs, or making homemade gifts.
Cultural Connections

Pagan/Norse (Yule): Focus on rebirth, the sun god, feasting, and evergreens, influencing modern Christmas.

Celtic/Roman: Use of evergreens, mistletoe, and feasts in winter celebrations.

Indigenous (Ojibwe/Anishinaabe): Winter as a sacred time for storytelling and honoring natural cycles.

Why does the upcoming solstice exert a hold on the human psyche? The 2025 December solstice happens at 15:03 UTC on December 21. That’s 9:03 a.m. Central Standard Time for us in the Americas. What can you look for in the sky that’ll help connect to this special day? Join EarthSky’s Deborah Byr...

12/13/2025

The Geminids is an annual meteor shower that peak December 13-14, 2025. At peak, it can produce 120–150 meteors per hour under ideal conditions! These meteors are slower-moving, bright, and often colorful streaks across our night sky, created by debris from Asteroid 3200 Phaethon. 🌌

For best viewing, hope for clear, dark skies between 10pm and 4am (local time). The constellation Gemini (near the bright stars Castor and Pollux) is the radiant, and it rises in the northeast during the evening and climbs higher after midnight. ☄️

While Gemini is a good place to start, Geminid meteors can appear anywhere in the sky, so the best strategy is to lie back and scan a wide area. The shower is active from December 4-20th, with peak viewing best after midnight when the radiant is highest. 🌌

A small, waning crescent Moon rising late should limit moonlight and improve visibility. Winter nights in the Northern Hemisphere can be cold, but with the potential to see more than two meteors per minute, it may be worth bundling up and looking up! ☄️

Looking for more resources? Check out:

1. NASA Science: Geminids Meteor Shower NASA Science
Learn why the Geminids happen and how to see them.
https://science.nasa.gov/solar-system/meteors-meteorites/geminids/

2. NASA Skywatching: What’s Up This Month NASA - National Aeronautics and Space Administration
Tips on what to look for in the night sky each month.
https://science.nasa.gov/skywatching/

3. American Meteor Society (AMS)
Check meteor shower schedules and tips for watching.
https://www.amsmeteors.org/

4. International Meteor Organization (IMO)
Global meteor data and yearly shower predictions.
https://www.imo.net/

5. Time and Date: Geminid Meteor Shower timeanddate.com
Find the best time and direction to see meteors.
https://www.timeanddate.com/astronomy/meteor-shower/geminid.html

6. National Geographic: Geminids Explained National Geographic
Simple explanation of the Geminid meteor shower.
https://www.nationalgeographic.com/science/article/geminids-meteor-shower-phaethon-asteroid

7. StarDate Online StarDate
Fun astronomy tips and ideas for watching the sky.
https://stardate.org/















🚨 Sky Watch Alert! 🚨The Perseid Meteor Shower is back! 🌠WHO: Northern Hemisphere stargazersWHAT: One of the best meteor ...
08/09/2025

🚨 Sky Watch Alert! 🚨
The Perseid Meteor Shower is back! 🌠
WHO: Northern Hemisphere stargazers
WHAT: One of the best meteor showers of the year - The Perseids! 💫
WHERE: Anywhere with dark skies (avoid city lights and clouds!) 🌌
WHEN: Aug 11–12, 2025 (best after midnight) 🕛
WHY: Earth is passing through debris from Comet Swift–Tuttle 🪐

⚠️ BUT… This year’s show comes with a major spoiler: the Moon. 🌕 On peak night, it’ll be 89% full (Waning Gibbous) and right near the constellation Perseus, flooding the sky with light. Faint meteors? Mostly gone. Bright Perseid fireballs? Still possible…. and worth watching for.

💡 Tip: Face away from the moon, watch after 11 p.m., and enjoy any meteors that blaze through. 2025 = low quantity, but maybe high quality. 🌌

📅 Mark your calendar for August 2026: New Moon + Perseids = epic skies. 🌑✨

For more details, visit:
LiveScience https://www.livescience.com/space/meteoroids/perseid-meteor-shower-2025-how-to-see-shooting-stars-despite-the-full-moon

Space.com https://www.space.com/stargazing/meteor-showers/will-the-bright-moon-ruin-the-perseid-meteor-shower-2025-or-is-it-still-worth-watching

One of the most prolific meteor showers of the year will peak overnight on Aug. 12-13, but a bright moon will reduce its visual impact.

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