by Joseph A'Hearn | Jun 23, 2016 | Astronomy, News, Observational Astronomy, Outreach
NASA and the US Agency for International Development (USAID) have teamed up and have brought the world an initiative called SERVIR. Using satellite images of the Earth and other technology, SERVIR works with organizations in developing countries to forecast climate...
by Joseph A'Hearn | Jun 9, 2016 | Astronomy, Observational Astronomy, Outreach
Last night I had the privilege of speaking about astronomy to the boys at Sacred Heart Apostolic School in Rolling Prairie, Indiana. After telling them a bit about myself, I narrated the story of the cosmological revolutions of the past century, answering the question...
by Joseph A'Hearn | Mar 10, 2016 | Astronomy, Observational Astronomy, Outreach
Last weekend I had the opportunity to travel up with the Astronomical Society of the University of Illinois and visit the University of Chicago’s Yerkes Observatory in Williams Bay, Wisconsin. Yerkes Observatory has a few telescopes, including the world’s...
by Joseph A'Hearn | Nov 26, 2015 | Astronomy, Basics, Observational Astronomy
When the Earth spins on its axis, the 360-degree turn is not actually what we normally call a day. That would be considered a sidereal day, that is, a day according to the distant (“fixed”) stars (the genitive singular form of “star” in Latin...
