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The Swedish-ESO Submillimetre Telescope (SEST) keeps its eye on the cosmos decades after being decommissioned.
SpaceX just fired up all six engines on the Starship upper stage that will conduct the vehicle's 15th test flight, potentially keeping everything on track for a launch next month.
Solar eclipse photography provides a unique vista into the processes taking place in the sun's upper atmosphere.
Point-to-point delivery, or P2D, is a VBD according to the AFRL.
On Oct. 28, 1971, the United Kingdom launched its first satellite. Here's why it mattered.
Confined inside a research station 22 feet (7 meters) underwater, Analog Astronaut Commander Dr. Musilova and her crew performed research and maintenance activities like future astronauts on Mars.
Joshua Kutryk will venture outside the International Space Station on Oct. 29, on the first spacewalk by a Canadian astronaut in more than seven years. Here's how to watch it live.
Virgin Galactic has officially unveiled its first "Delta-class" space plane, and announced the results of the worldwide vote to choose its name.
