George Rieke
George Rieke
George H. Rieke, a noted American infrared astronomer, is former Deputy Director of the Steward Observatory and Regents Professor of Astronomy and Planetary Sciences at the University of Arizona in Tucson. He led the experiment design and development team for the Multiband Imaging Photometer for Spitzerinstrument on NASA's infrared Spitzer Space Telescope, and currently chairs the science team of the Mid-Infrared Instrument for the James Webb Space Telescope...
brighter found massive million missing older stars
We thought young stars, about 1 million years old, would have larger, brighter discs, and older stars from 10 to 100 million years old would have fainter ones. But we found some young stars missing discs and some old stars with massive discs.
belt detect dinosaurs impacts larger million quieter scale solar system
Because this belt has more asteroids than ours, collisions are larger and more frequent, which is why Spitzer could detect the belt. Our present-day solar system is a quieter place, with impacts of the scale that killed the dinosaurs occurring only every 100 million years or so.
full mess planets road rocky seeing
It's a mess out there. We are seeing that planets have a long, rocky road to go down before they become full grown.
biggest light trip
We had no idea that Spitzer would ever see light echoes. Sometimes you just trip over the biggest discoveries.