February 2016

Triffid Nebula M20

This nebula was discovered by Charles Messier in 1764. It is a combination of an open cluster and emission nebula. The name means “divided into three lobes”. In the center […]

Whirlpool Galaxy M51

Whirlpool Galaxy Also known as M51a and NGC5194. The smaller galaxy in the lower right is a companion galaxy known as NGC5195 or M51b. First discovered by Charles Messier in […]

ESSAYS AND ADDRESSES ON EDUCATION by GEORGE HERBERT PALMER and ALICE FREEMAN PALMER I 

THE IDEAL TEACHER In America, a land of idealism, the profession of teaching has become one […]