A SpaceX Falcon 9 rocket with the companys Crew Dragon spacecraft onboard is seen on the launch pad at Launch Complex 39A during a brief static fire test ahead of NASAs SpaceX Crew-4 mission, Wednesd… [+1501 chars]
The test version of a unique satellite navigation receiver has been delivered for integration testing on the Lunar Pathfinder spacecraft. The NaviMoon satnav receiver is designed to perform the farth… [+7158 chars]
Egyptian fruit bats use echolocation during daylight hours even though they have good eyesight, according to a study by a team of researchers at Tel Aviv University. In their paper published in the j… [+864 chars]
Summary: People who experience visual imagination have pupillary responses that optimize the amount of light hitting the retina and change in response to imagined items. This pupillary response does … [+7530 chars]
