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Astronomers discover comets may be more fragile than previously believed
Astronomers comets more fragile previously believed
2017/7/24
Dr. Maria Womack from the University of South Florida is lead investigator of a study on the Centaur “Echeclus,” which is a peculiar minor planet in our solar system.“Echeclus is rare because it behav...
Pairs of Supermassive Black Holes in Galaxies May Be Rarer Than Previously Thought（图）
Supermassive Black Holes Galaxies Previously Thought
2015/9/25
There may be fewer pairs of supermassive black holes orbiting each other at the cores of giant galaxies than previously thought, according to a new study by astronomers who analyzed data from the Nati...