Definition of thanksgiving for English Language Learners. Thanksgiving : the fourth Thursday in November in the U.S. or the second Monday in October in Canada celebrated as a legal holiday for people to be thankful for what they have.
A galaxy contains stars, gas and dust. In a spiral galaxy like the Milky Way, the stars, gas, and dust are organized into a bulge, a disk containing spiral arms, and a halo.. Elliptical galaxies have a bulge-like central region and a halo, but do not have a disk.
During the last two years, I have led a team of astronomers searching for the most distant stars in the Milky Way Galaxy. Weâre now publishing a study in the July 20th Astrophysical Journal Letters, detailing our discovery of two of the most distant stars in the Milky Way, ULAS J0744+25 and ULAS J0015+01.