In about an hour, “Hectostar” had written itself. Here it is. Enjoy.
For seven and a half hours on May 9, Mercury will slowly transit all the way across the face of the sun, although, we in Colorado won’t see the entire event.
The Spring Diamond asterism, also called the Virgin’s Diamond, is marked at its corners by four of the brightest stars sparkling in the spring sky: Arcturus, Spica, Cor Caroli, and Denebola.
The one naked-eye planet most folks probably have never seen is the planet Mercury. Mercury is not only the closest planet to the sun, but it also became the solar system’s smallest planet after Pluto was demoted to dwarf planet status in 2006.
Though the Southern Cross is the tiniest of our 88 official constellations, its reputation is far larger than its actual size, even though most people living in the Northern Hemisphere have never seen it.
This week, I am on the Big Island of Hawaii with 19 other members of the SKY Club, the student astronomy club at Colorado Mountain College.
One of the sure signs that spring has arrived is the return of the Big Dipper to our early evening sky.
Have you ever wondered why the date of Easter Sunday hops around like a bunny rabbit from year to year?
After being treated to four spectacular total lunar eclipses in 2014-15, lunar eclipse watchers will have to settle for a very slight lunar eclipse in 2016.
The celestial Unicorn — Monoceros— is a relative newcomer to the sky, first appearing on a star chart in 1624.
In our solar system, Jupiter is the undisputed king of the planets.
Have you ever wondered why the month of February has only 28 days most years, but occasionally has 29 days, as it does this year? 2016 is a leap year, and it’s time to take up the slack in the calendar.
Want to learn your way around the starry winter sky? The Winter Hexagon is a great place to start.
There are 6,000 or so stars visible to the naked eye under ideal conditions, but only Sirius, the famous Dog Star, can claim the title of “The Brightest Star.”
Feb. 2 is Groundhog Day, marking the midpoint of winter. The tradition of this unusual holiday can be traced back for many centuries, though not in the same form we celebrate today.