Keith Noll is the principal investigator for the Hubble Heritage Project. He received his Ph.D. from the University at Stony Brook in New York under the direction of Roger Knacke.
Photo by Zoe Ledbetter via Keith's bio on the Hubble Heritage website.
An asteroid or comet headed for Earth is the only large-scale natural disaster we can prevent. Working together to fund our Shoemaker NEO Grants for astronomers, we can help save the world.
Intro Astronomy 2017. Class 4: Moon, Mercury, Venus-Earth-Mars Atmospheres
Pretty pictures and