BOSTON â President Obama signed an executive order on Monday requiring federal contractors to provide up to seven days of paid sick leave a year, even as he accused Republican congressional leaders of endangering the economy and Republican presidential candidates of undercutting American workers.OSTON â President Obama signed an executive order on Monday requiring federal contractors to provide up to seven days of paid sick leave a year, even as he accused Republican congressional leaders of endangering the economy and Republican presidential candidates of undercutting American workers.
A dwarf star is a star of relatively small size and low luminosity. 1  Most main sequence stars are dwarf stars. The term was originally coined in 1906 when the Danish astronomer Ejnar Hertzsprung noticed that the reddest starsâclassified as K and M in the Harvard scheme could be divided into two distinct groups.
Latest on Brown Dwarfs: Failed Stars Resembling Planets. 1  Clouds on 'Failed Stars' Resemble Those on Neptune. 2  Rogue 'Double Planet' Is Actually 2 Failed Stars. 3  100 Billion Failed Stars May Be Hiding in the Milky Way. 4  A 'Feel-Good Moment for Science': Volunteers Spot the Sun's Newest Neighbor. 5  Record-Breaker!