The possibility of humans colonizing outer space may seem like the stuff of science fiction, but British astronomer Chris Impey says that if the U.S. were pumping more money into the space program, ...

One large Milky Way galaxy or many galaxies? 100 years ago, a young Edwin Hubble settled astronomy’s ‘Great Debate.’ By Chris Impey / The Conversation By Chris Impey / The Conversation By Chris Impey ...

For decades, Chris Impey has guided readers across the expanding frontier of the universe. From quasars and black holes to the search for planets beyond our solar system, his books translate the ...

Astronomers tell us that we live in an expanding universe filled with myriad galaxies that are rocketing away from each other at incredibly fast speeds. Yet, they say, it’s not the galaxies themselves ...

Astronomers used to think that at some point down the road, our expanding universe would possibly grind to a halt due to gravity’s possessive ways, and undergo a colossal cave-in, crushing all matter ...

When itcomes to the end of the universe, Chris Impey has become something of anexpert. In his book"How It Ends: From You to the Universe" (April 19, W.W. Norton &Company), the deputy head of the ...

This transcript was prepared by a transcription service. This version may not be in its final form and may be updated. Danny Lewis: Almost 800 million miles away from Earth, the moon Enceladus orbits ...

When Space Shuttle Atlantis skated down to Earth for the last time in 2011, it signaled the end of NASA’s 30-year space shuttle program. But rather than heralding the twilight of a space age belonging ...

I use moon and Mars rocks in my teaching and have a modest collection of meteorites. I marvel at the fact that I can hold in my hand something that is billions of years old from billions of miles away ...

Chris Impey is a University Distinguished Professor of Astronomy at the University of Arizona. He has over 180 refereed publications on observational cosmology, galaxies, and quasars, and his research ...