James E. Hansen, director of NASA's Goddard Institute for Space Studies (GISS) in New York has
Astronomers have uncovered a unique process for how the universe's largest elliptical galaxies
Its size and surface gravity are much larger than Earth's, and its radiation environment may be
Beyond the orbit of Neptune reside countless icy rocks known as trans-Neptunian objects (TNOs). One of the
Using its near-infrared vision to peer 9 billion years back in time, NASA's Hubble Space Telescope has
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