Return to Index . This is a personal project collecting and documenting early images of Harvard College Observatory, focusing on the site at Observatory Hill (previously Summer House Hill). Buildings, instruments, people, and observations. Disclaimer: all content here is solely my own views, and in no way represents the views of my employer, or anyone else. Also, I'm documenting things as I learn about them, so expect frequent errors. Corrections will occur without notice and without a changelog at this

The ultimate force in the universe: Some thoughts about gravity. ... Gravity through the ages Aristotle: Earth, water, fire, air. Earth and water fall `down' to the center of the cosmos (geocentric or earth centered universe). The more earth or water in the object, the faster it is attracted to the center. ... Determines the fate of the universe (expand forever, or contract back in a `"big crunch"). ... Determines the fate of stars when they die (white dwarfs, neutron star, or black hole). ...

National Aeronautics and Space Administration . ... Ulrich Walter . German Science Astronaut (Payload Specialist) . ... SPECIAL HONORS: A research fellowship at the University of California at Berkeley by the Deutsche Physikalische Gesellschaft (German Physical Society), 1986-1987. ... 1974-1980 Studying Physics at the University at Cologne. ... SPACE FLIGHT EXPERIENCE: Dr. Walter flew as prime payload specialist PS-1 on STS-55 Columbia (April 26 to May 6, 1993). ...

EYEPIECE Journal of the Amateur Astronomers Association of New York February 2009 Volume 57, Number 2, ISSN 0146-7662 `100 Hours of Astronomy' Effort Is Ready to Roll By Jason Kendall On January 6 in Long Beach, Calif., the American Astronomical Society kicked off the beginning of the International Year of Astronomy 2009 with a big celebration attended by hundreds of professional and amateur astronomers. ... On April 2-5 there is a global star party. ... February 22 Moon lies near Mercury and Jupiter. ...

... At the January meeting we finally achieved the necessary quorum in the vote on the bylaws changes proposed in September. ... Giant Ribbon at Edge of the Solar System: Mystery Solved? ... It is where solar wind particles heading out into interstellar space are reflected back into the solar system by a galactic magnetic field." ... Particles from the solar wind that escape the solar system are met ~100 astronomical units (~15 billion kilometers) away by an interstellar magnetic field. ...