Kerry Ellis

By Kerry Ellis   Breaking the sound barrier took guts, curiosity, optimism, and some serious risk taking.

By Kerry Ellis   According to the World Bank, more than 1.1 billion people do not have access to clean, safe water, and 1.6 million children die each year as a result of illness related to inadequate water supply and sanitation.

By Kerry Ellis   NASA is working with other agencies to prepare for ever-increasing air traffic.

By Kerry Ellis The Airborne Science Program within NASA’s Science Mission Directorate has helped take Earth science to suborbital heights.

By Kerry Ellis Before my conversation with Alan Epstein, the new—and first—vice president of technology and environment at Pratt & Whitney, my only concern about my flight out of the country this summer was whether I’d board on time.

By Kerry Ellis As early as the beginning of the seventeenth century, when Galileo used his telescope to turn Ptolemy’s geocentric theory on its ear, astronomers have continually sought better ways to look into the heavens to discern what exists in the depths of our star-studded universe.

By Kerry Ellis The pursuit of space science does more than reveal new facts and spawn new theories about the universe and our place in it.

By Kerry Ellis Since the advent of space exploration, Mars has been a tantalizing goal.

By Kerry Ellis The last time NASA visited Mercury was in the early seventies, when Mariner 10 made history as the first mission to explore two planets and the first spacecraft to use a gravity assist to change its course.