Three space shuttle veterans enter Astronaut Hall of Fame

At an event celebrating their past, the three new inductees into the US Astronaut Hall of Fame looked to the future for the promise of space exploration. Veteran space shuttle fliers David Leestma, Sandy Magnus and Chris Ferguson were honored Sunday (June 11) at a public ceremony held at NASA’s Kennedy Space Center Visitor Complex … Read more

How immune cells enter tissue

Macrophages, a type of immune cell (purple), utilize the division of a tissue cell (green) to invade tissues. Credit: © Maria Akhmanova/ISTA To get to the places where they are needed, immune cells not only squeeze through tiny pores. They even overcome wall-like barriers of tightly packed cells. Researchers at the Institute of Science and … Read more