All Stories

The United States played host to an extraordinary phenomenon known as a total solar eclipse on August 21, 2017. A solar eclipse occurs when the Moon passes between the Sun and the Earth.  Eclipses have occurred throughout history, and some have fascinating stories associated with them. Take the following two tales for example.

If you live in North America or western South America, you have a treat in store for you tonight or early tomorrow morning: a total lunar eclipse! If you live elsewhere in the world, or if it’s cloudy in your location – as it probably will be tonight at our location in Washington, DC – you can still see the eclipse online.  Several websites will host live streams.  Some of their locations will be clouded out, so we recommend that you search for “lunar eclipse live stream” and browse the results.  You can also participate in a live web chat during the eclipse with NASA astronomers.

As our northern hemisphere days begin to lengthen, I like to think about the many ways people have marked the Winter Solstice throughout human history. Like Summer Solstice (the longest day), the equinoxes, and motions of the planets and Moon through the sky, Winter Solstice has long been observed, recorded, and used to construct special buildings. Some of these buildings were erected so long ago that no written record of their use is available today, but they clearly point at cultures that valued the knowledge of precisely when the longest night of the year occurs. Two ancient cultures in the northern hemisphere whose monuments I’ve visited come to mind: Celtic and Anasazi.

If you visit the Public Observatory during its daytime hours in May (1–3pm on Wednesday through Saturday, weather permitting), you can use the 16” telescope to observe an object which looks a lot like the Moon.  Hanging in a blue sky, it shines with yellowish reflected sunlight. 

On the morning of March 2, I got an excited text message from fellow astronomy educator Shelley Witte, telling me that the International Space Station (ISS) and Space Shuttle Discovery would be coming very close to transiting the Sun from our position at the National Air and Space Museum’s Public Observatory at exactly 3:08 pm.

On Saturday, March 19, I was thrilled to participate in the first ever Sun-Earth Day Tweetup organized by the NASA Goddard Spaceflight Center. It was also the first time the Smithsonian officially participated in a Tweetup. The event was a great opportunity to give twitter fans (aka “tweeps”) some face-to-face interaction with our research scientists, curators and educators, and provide some fun hands-on learning that illustrated the Sun-Earth connection.

I was pleasantly surprised when the clouds rolled out and the weather turned out to be favorable for the total lunar eclipse last night!

The Moon is one of the most easily recognized celestial objects and arguably the easiest one to observe. It is simple to view the changing phases from day to day, with your naked eyes. Binoculars or a telescope will reveal countless craters, ancient lava flows, and other intriguing lunar features.

The Public Observatory Project is just over a year old now, and in that time we’ve been  experimenting with the telescope to discover what is visible in the daytime sky and devise ways that our visitors can have the best experience possible.  One of our goals is to use our equipment to take images of the Sun, so that we can share our star’s day-to-day activities with the visiting public as well as those who can’t make it to the Mall to look through our telescopes.