The majority of stars emit most of their electromagnetic energy as visible light, the tiny portion of the spectrum to which our eyes are sensitive. Because wavelength correlates with energy, the color of a star tells us how hot it is: red stars are coolest, blue are hottest.
If you qualify, the Army will pay up to 33.33 percent of your principal balance each year for three years. You could receive up to $65,000 in loan assistance. Note that you can only use this money to pay off federal student loans, such as Direct, FFEL, and Perkins Loans.
Meanwhile, the class of 2015 has the highest-ever levels of student loan debt, according to data published in the Wall Street Journal last week. The average amount a 2015 grad will have to pay back is $35,000. More than 70 percent of this crop of grads took out loans to pay for school.