John Huchra, former president of the American Astronomical Society, passed away on October 8, 2010. John’s colleagues at the Harvard-Smithsonian Center for Astrophysics, in collaboration with the creators of WorldWide Telescope at Microsoft Research, have...
Tour of the radio wavelength view of the inner Galaxy. We start by reviewing all-sky views in various wavelenghts and then zoom into a radio view of Sagittarius A and finally into Sagittarius A*, the location of the supermassive black hole at the Galactic...
Our sun, and other stars like it, do not remain exactly as they appear now. Stellar lifetimes are much longer than ours, but like us, they progress though stages of life. The story of these stages tells us about the formation of the planets and their fate...