Best neutral density filters | Space

Do you need one of the best neutral density filters? If you’re experimenting with long exposure photography then the answer is probably yes. Little more than dark glass, neutral density filters (aka ND filters) are designed to control light. They purposefully reduce the amount of light that reaches your camera lens and, therefore, your camera’s … Read more

Many Astronauts Never Recover all of their Bone Density after Returning to Earth

In his book, Endurance, astronaut Scott Kelly described the arduous task of readingjusting to life on Earth after spending a year in space. As part of NASA’s Twins Study, Kelly lived and worked aboard the International Space Station (ISS) while his identical twin (astronaut Mark Kelly) remained on Earth. While the results of this study … Read more