A bi-weekly short feature on astronomy, produced by members of the Black Canyon Astronomical Society.
Western Slope Skies - Mankind's Mementos on the Moon
Sixty-nine years ago, Humanity first contacted the Moon’s surface with Luna 2, the former Soviet Union’s uncrewed lunar probe. One may wonder what has been left behind over the decades. The answer is well over 200 tons of diverse artifacts. Behind the materials are many stories-- mundane, poignant, controversial, and amusing.
10/25/2024 • 4 minutes, 6 seconds
Western Slope Skies - Chasing Northern Lights in Colorado
Viewing Northern Lights in Colorado is certainly possible, even common at times, such as during high levels of solar activity also known as "Solar Maximum.”
10/11/2024 • 3 minutes, 36 seconds
Western Slope Skies - The Stories of the Stars
Stories, such as the one I’ve just shared and many others around the globe, were used to interpret the stars and celestial objects that people have seen sparkling in the night sky.
9/27/2024 • 3 minutes, 52 seconds
Piazzi’s Flying Star” & Stellar Parallax
Throughout history, a belief in the “fixed” and changeless stars was held by many cultures. But at the beginning of the 19th Century, Italian astronomer Giuseppe Piazzi repeatedly measured the position of a star called 61 Cygni. Piazzi’s work overturned such long-held beliefs and led to research that ultimately allowed astronomers to accurately measure the scale of the Milky Way Galaxy and to learn of our location within it.
9/13/2024 • 3 minutes, 22 seconds
What is solar maximum and what does it mean for us?
The Sun has been ‘in the news’ these days. You may have read about various phenomena associated with the Sun, including sunspots, flares, and auroras or Northern Lights. So why all the interest in the Sun now?
8/30/2024 • 3 minutes, 22 seconds
Western Slope Skies - AstroFest 2024
AstroFest 2024 will feature dark night skies along the entire Gunnison River corridor from Curecanti National Recreation Area (certified Dark Sky in 2021) all the way to Gunnison Gorge National Conservation Area – celebrating their recent certification as a Dark Sky Place.
8/14/2024 • 3 minutes, 22 seconds
Western Slope Skies - Meteor Showers
Every year, right in the middle of August, my cousins and I drag all our sleeping bags andpillows up to their roof and wait for the sky event that goes highly unnoticed every year: the Perseid meteor shower.
8/2/2024 • 3 minutes, 3 seconds
Western Slope Skies: Sundogs and Moonbows
Halos arise from sunlight refraction through microscopic ice crystals, usually aloft in cirrus clouds.
7/19/2024 • 2 minutes, 58 seconds
Western Slope Skies - Discovering Planets Outside Our Solar System
A star begins its life as a cloud of gas and dust. These are called molecular clouds, and they can range between 1,000 to 10 million times the mass of the sun.
7/5/2024 • 3 minutes, 45 seconds
Western Slope Skies - Planetary Alignment versus Conjunction and how Hollywood gets it wrong
A planetary alignment means that 3 or more planets line up in a row, as seen from the Earth, in the same area of the sky, that is, a “parade of planets”. The planets lie ROUGHLY on a line called the ecliptic, the path that the Sun appears to follow against the background of stars as we on Earth orbit the Sun. The parade can be tens of degrees in length.
6/21/2024 • 3 minutes, 20 seconds
Western Slope Skies - How Stars Become White Dwarfs
When a star dies what is left behind is called a stellar remnant. The type of stellar remnant is dependent upon the star’s mass.
6/7/2024 • 3 minutes, 23 seconds
Western Slope Skies - Rings of Saturn
Saturn's rings are one of the most astonishing things to see with your own eyes.
5/24/2024 • 3 minutes, 8 seconds
Western Slope Skies: LAKE CITY’S 2024 STARFEST
This year’s Lake City Star Fest will be held June 7-9. We invite the public to celebrate the incredible starry night skies in our area along with some of Lake City’s rich and colorful cultural heritage.
5/10/2024 • 3 minutes, 13 seconds
Western Slope Skies: The Wonder of a Twinkling Star
While gazing at that mystical point of light, time and space seem to disappear, if only for a moment. Even us older stargazers can still find plenty to wonder about when it comes to twinkling stars.
4/26/2024 • 3 minutes, 38 seconds
Total Solar Eclipse USA! – April 8, 2024
On Monday, April 8, 2024, we’ll be able to see a total solar eclipse from parts of Mexico, the U. S., and Canada. Another such eclipse won’t be visible from the 48 contiguous States for 20 years.
3/29/2024 • 3 minutes, 30 seconds
Western Slope Skies: Coalition
The Coalition, a 501c3 non-profit, is an umbrella organization dedicated to supporting Dark Sky Places.
3/15/2024 • 3 minutes, 21 seconds
The Orion Nebula: A Stellar Nursery
The Sun is a star that provides Earth with the energy that drives most of our diverse and amazing biology. But where and how do stars form?
3/1/2024 • 3 minutes, 32 seconds
Spot Some Earth Satellites!
On clear, dark nights, we can see dozens of satellites with our eyes alone. Most satellites travel within a zone called Low Earth Orbit that ranges in altitude from 150 to 1200 miles.
2/16/2024 • 3 minutes, 18 seconds
The Mystery of the Maunder Minimum
Today, we explore a curious solar phenomenon that occurred from 1645 to 1715.
2/2/2024 • 3 minutes, 9 seconds
Western Slope Skies - Traveling through time with a telescope
What if I told you that you could travel through time with a telescope? No, a telescope cannot take you back to 1955 to fix your parent’s relationship. However, through a telescope, the possibilities to discover events that happened eons ago are opened by gazing at the colossal night sky.
1/19/2024 • 3 minutes, 42 seconds
Western Slope Skies - Dark Matter
In the vast expanse of the cosmos, there exists a mysterious force that challenges the very fabric of our understanding — dark matter. Let's embark on a journey into the cosmic unknown, exploring the enigma that comprises 85% of the universe's mass.
1/5/2024 • 3 minutes, 15 seconds
Western Slope Skies - Presidents, Cows, and Eclipses
Lyndon B. Johnson National Historical Park and the surrounding Hill Country will be offering many events over eclipse weekend.
12/22/2023 • 3 minutes, 37 seconds
Wonders of a Dark, December Sky
In December, it’s tempting to stay inside and avoid the cold night air. But the December night sky is impressive! Find a star chart or planetarium App, then go out on a clear night, at least briefly, to enjoy the spectacle!
12/8/2023 • 3 minutes, 25 seconds
Western Slope Skies - Stars Above, Stars Within
You may fondly remember the classic Eighties science program Cosmos, narrated by the late great astrophysicist Carl Sagan. In the episode “The Shores of the Cosmic Ocean”, he famously uttered “we’re made of star stuff”. We are the products of nucleosynthesis, a set of processes that created the chemical elements, the building blocks of all we see and are.
11/24/2023 • 3 minutes, 34 seconds
Western Slope Skies - Astronomy Highlights for 2024
2024 is almost here, and in astronomy, a lot will be happening.
11/24/2023 • 3 minutes, 39 seconds
Western Slope Skies - Shedding Light on Dark Matter
Dark matter. You’ve probably heard of it, maybe in a Sci-Fi novel or movie, and you’ve probably wondered what it is exactly. Well, welcome to the club. Scientists have been asking themselves this question since its discovery in 1933. Dark matter is an invisible, mysterious substance that makes up 22% of the universe, but we know very little about it.
10/27/2023 • 3 minutes, 44 seconds
Western Slope Skies - Rings in Space
Ring nebulae and the rings of Saturn are among some familiar rings that exist in space. But consider ring galaxies!
10/12/2023 • 4 minutes, 5 seconds
Western Slope Skies - Ring of Fire Solar Eclipse
In a total eclipse, the moon covers the sun completely and the sky darkens as if it were dawn or dusk.
9/29/2023 • 2 minutes, 48 seconds
The Universe Got Bigger
On the night of October 5, 1923, using the 100-inch Hooker telescope on Mt. Wilson, Edwin Hubble captured a photographic plate image of M31, the Andromeda “Nebula”.
9/15/2023 • 3 minutes, 26 seconds
Western Slope Skies - ASTROFEST 2023
This year’s festival will run from September 14 through 16th, to coincide with the September new moon.
9/1/2023 • 3 minutes, 29 seconds
Western Slope Skies - The Hubble Space Telescope
If you’ve been paying attention to the news in the past year you’ve no doubt heard about the James Webb Space Telescope. However, there is another space telescope that still deserves your attention.
8/18/2023 • 3 minutes, 11 seconds
Western Slope Skies - Meteors and Dark Skies
One of the best meteor showers of the year will peak during the second weekend of August, presenting the perfect opportunity to spot shooting stars streaking across the sky.
8/4/2023 • 3 minutes, 45 seconds
Western Slope Skies - Echoes Across a Cosmic Ocean
Recently, scientists announced detection of a persistent gravitational wave background (GWB), continually rippling the cosmos like a calm ocean breeze.
7/21/2023 • 4 minutes, 4 seconds
Western Slope Skies - The Real Hubble
When people hear the name “Edwin Hubble,” they typically think of the Hubble Space Telescope. However, the Hubble Space Telescope was built after Edwin Hubble’s death as a way to honor him.
7/7/2023 • 3 minutes, 26 seconds
Western Slope Skies: Scotobiology
The concept of scotobiology as a science was developed at a conference on light pollution held in Muskoka, Ontario, in 2003. Just as the word “photo” relates to light, “scoto” is the word that relates to “darkness.” Therefore, Scotobiology is the study of the role darkness plays in living organisms.
6/23/2023 • 3 minutes, 10 seconds
Western Slope Skies: The Magic Behind Shooting Stars
Have you ever wished upon a shooting star? For most of us, the novelty of wishing on a shooting star has faded since the days of our childhood.
6/9/2023 • 2 minutes, 48 seconds
Western Slope Skies: Gran Telescopio Canarias
The telescope’s most important discovery to date has been finding the farthest black hole located at the center of a rare type of galaxy.
5/26/2023 • 2 minutes, 48 seconds
Western Slope Skies: NASA DARTS an Asteroid
On September 26, 2022, a NASA spacecraft ran into the asteroid Dimorphos at nearly 15,000 miles per hour. Far from being a multi-million-dollar boondoggle, this collision is precisely what astronomers had planned. The spacecraft was part of the Double Asteroid Redirection Test mission, or DART for short. The goal: to test technology that could potentially divert a large asteroid, should we ever locate one on a collision course with Earth.
5/12/2023 • 3 minutes, 19 seconds
Western Slope Skies: Lake City’s Starry Skies
From June 7-11, we will hold our first ever StarFest to celebrate Lake City’s starry skies and gather other dark sky advocates and interested folks from the western slope, the San Luis Valley, and throughout Colorado to see what more can be done to assure our precious night skies can be enjoyed by future generations. Unfortunately, light pollution is getting worse around the world so taking action is critical to turning things around.
4/28/2023 • 3 minutes, 50 seconds
Western Slope Skies: The Saga of Venusian Exploration
Gleaming naked-eye apparition, Venus has captivated civilization since antiquity, garnering epithets of divine power and beauty-- Chac-Ek (“Great Star”) in Mayan, Jin-xing (“Golden Planet”) in Chinese, Phosphoros (“Lightbringer”) in Greek.
4/14/2023 • 3 minutes, 58 seconds
Western Slope Skies: Lunar Delivery Driver
Back when our beloved western cities were still young and their skies still dark, customers waited weeks or even months for basic household items to reach their local mercantile shelves.
3/17/2023 • 3 minutes, 21 seconds
Western Slope Skies: Charles Messier: Comet Hunter
Imagine being a poor 13-year old boy living in France in 1744 and observing a 6-tailed comet in the daytime. What aspirations might that have generated in a teenager?
3/3/2023 • 3 minutes, 26 seconds
Western Slope Skies: The Winter Milky Way
The name Milky Way means two things: the star-packed photogenic river of stars across sky for one. It also refers to the hundreds of billions of stars that make up our galaxy. No matter where you look in the Western Slope sky, every star is part of our galaxy.
2/17/2023 • 3 minutes, 45 seconds
Western Slope Skies: Comets: Icy, Dusty Visitors from Afar
Comets, once considered portents of doom, have long puzzled us. They move rapidly against the starry background. They grow tails, which may explain why the ancient Greeks called them “hairy stars.” Their brightness and even their exact paths can be hard to predict. So, what are these mysterious visitors that sometimes appear in our sky?
2/3/2023 • 3 minutes, 9 seconds
Western Slope Skies - The Late, Late Show: Getting Personal with the Moon
In the very early hours of November 8, the second total lunar eclipse of 2022 will be visible from Western Colorado.
10/28/2022 • 3 minutes, 49 seconds
Western Slope Skies - NASA’s Juno at Jupiter
This month is a great time to view Jupiter, because this 86,000 mile-wide, giant planet is visible nearly all night long.
10/14/2022 • 3 minutes, 17 seconds
Western Slope Skies - June 10th - Olbers’ Paradox
Olbers’ Paradox - A familiar constellation in the dark night sky.