Now showing items 1-10 of 10
Binary Pulsars and Relativistic Gravity
(2009-04-10)
Pulsars are neutron stars -- the extremely dense, strongly magnetized, rapidly spinning remnants of supernova explosions. They also appear to be nature's most precise clocks. Discovery of the first orbiting pulsar opened ...
Unveiling a Black Hole at the Center of Our Galaxy
(2009-04-10)
More than a quarter century ago, it was suggested that galaxies such as our own Milky Way may harbor massive, though possibly dormant, central black holes. Definitive proof, for or against, the existence of a massive central ...
The Future of our Universe: From the 21st Century to the End
(2009-04-10)
This talk describes our current picture for the long term fate of the cosmos. We discuss the evolution of planets, stars, galaxies, and the universe itself over time scales that greatly exceed the current age of the universe. ...
Witnessing the Formation of Galaxies: Violence in the Young Universe
(2009-04-10)
Telescopes allow us not only to peer out to the far reaches of space, but also to look back in time by observing the most distant objects in the Universe. Using large telescopes, we can observe directly what the universe ...
A Revolution in Planetary Science: The Three-Zoned Solar System
(2009-04-10)
Science’s view of our planetary system was fundamentally restructured by the 1990s discovery of the Kuiper Belt beyond Neptune and the recent discoveries of numerous Pluto-sized bodies in the Kuiper Belt. No longer do we ...