Leland Melvin, NASA Associate Administrator for Education and former space shuttle astronaut, far right, answers questions from students about his experience as an astronaut on Tuesday, Feb. 8, 2011, at Ferebee-Hope Elementary School in Washington, DC. Ferebee-Hope Elementary School, in collaboration with Reading is Fundamental (RIF), hosted this event in honor of Black History Month, and to highlight the importance of reading. Photo Credit: (NASA/Carla Cioffi)

Leland Melvin, NASA Associate Administrator for Education and former space shuttle astronaut, speaks to students about his experience as an astronaut on Tuesday, Feb. 8, 2011, at Ferebee-Hope Elementary School in Washington, DC. Ferebee-Hope Elementary School, in collaboration with Reading is Fundamental (RIF), hosted this event in honor of Black History Month, and to highlight the importance of reading. Photo Credit: (NASA/Carla Cioffi)

Leland Melvin, NASA Associate Administrator for Education and former space shuttle astronaut, reads to first and third grade students from the book “The Moon Over Star” at Ferebee-Hope Elementary School on Tuesday, Feb. 8, 2011, in Washington, DC. Ferebee-Hope Elementary School, in collaboration with Reading is Fundamental (RIF), hosted this event in honor of Black History Month, and to highlight the importance of reading. Reading is Fundamental distributes more than 50,000 free books to help children discover the joy of reading. Photo Credit: (NASA/Carla Cioffi)

Leland Melvin, NASA Associate Administrator for Education and former space shuttle astronaut, center, poses with students from Ferebee-Hope Elementary School on Tuesday, Feb. 8, 2011 in Washington, DC. Ferebee-Hope Elementary School, in collaboration with Reading is Fundamental (RIF), hosted this event in honor of Black History Month, and to highlight the importance of reading. Photo Credit: (NASA/Carla Cioffi)

Leland Melvin, NASA Associate Administrator for Education and former space shuttle astronaut, center, speaks to students about his experience as an astronaut on Tuesday, Feb. 8, 2011, at Ferebee-Hope Elementary School in Washington, DC. Ferebee-Hope Elementary School, in collaboration with Reading is Fundamental (RIF), hosted this event in honor of Black History Month, and to highlight the importance of reading. Photo Credit: (NASA/Carla Cioffi)

Betsy Pugel, a physicist from NASA’s Goddard Space Flight Center in Greenbelt, Md., shows students an imprint of a boot from a space suit on Tuesday, Feb. 8, 2011, at Ferebee-Hope Elementary School in Washington, DC. Ferebee-Hope Elementary School, in collaboration with Reading is Fundamental (RIF), hosted this event in honor of Black History Month, and to highlight the importance of reading. Photo Credit: (NASA/Carla Cioffi)

Betsy Pugel, far left, a physicist from NASA’s Goddard Space Flight Center in Greenbelt, Md., talks with students about the space suit glove they are trying on, Tuesday, Feb. 8, 2011 at Ferebee-Hope Elementary School in Washington, DC. Ferebee-Hope Elementary School, in collaboration with Reading is Fundamental (RIF), hosted this event in honor of Black History Month, and to highlight the importance of reading. Photo Credit: (NASA/Carla Cioffi)

Leland Melvin, NASA Associate Administrator for Education and former space shuttle astronaut, answers questions from students about his experience as an astronaut on Tuesday, Feb. 8, 2011, at Ferebee-Hope Elementary School in Washington, DC. Ferebee-Hope Elementary School, in collaboration with Reading is Fundamental (RIF), hosted this event in honor of Black History Month, and to highlight the importance of reading. Photo Credit: (NASA/Carla Cioffi)

Leland Melvin, NASA Associate Administrator for Education and former space shuttle astronaut, reads to first and third grade students from the book “The Moon Over Star” at Ferebee-Hope Elementary School on Tuesday, Feb. 8, 2011, in Washington, DC. Ferebee-Hope Elementary School, in collaboration with Reading is Fundamental (RIF), hosted this event in honor of Black History Month, and to highlight the importance of reading. Reading is Fundamental distributes more than 50,000 free books to help children discover the joy of reading. Photo Credit: (NASA/Carla Cioffi)