Word: planetsized
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Dates: during 1990-1999
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While doing thesis research in Chile this March, Ray Jayawardhana, a student in the department of astrophysics and a resident tutor in Quincy House, observed that a dust ring around the star astronomers refer to as HR 4796A was shaped like a disk, which may indicate the presence of planets...
Dr. Lee Hartmann, a senior astrophysicist at the Harvard-Smithsonian Center for Astrophysics, said the hole in the center of the disk "is about the size of a planetary system" which suggests that the disk is the early stage of a solar system. The presence of planets, however, is not...
The baffling history of mankind is full of obvious turning points and significant events: battles won, treaties signed, rulers elected or deposed, and now, seemingly, planets conquered. Equally important are the great groundswells of popular movements that affect the minds and values of a generation or more, not all of...
For these men, the sun is a much smaller white ball, and the planets number 15, not nine. They pass their time in Sully's, the Brighton Billiard Club, the Rack, Pockets and in the Boston Billiard Club--just a few of the urban oases which dot the metropolitan landscape...
Astronomers have been aware for decades that very massive stars expire in huge explosions that can outshine a galaxy. But sunlike stars die with a lot less fuss; they swell, slowly frying close-in planets, then puff their outer layers into space to form enormous balls of gas. Finally, they...