A ghost of a star that exploded thousands of years ago. 🌠 Staring into the Eastern Veil Nebula, a 2,400 light-year distant remnant still expanding through the constellation Cygnus.
Our solar system orbits around the center of the Milky Way at about 829,000 km/h. The Earth orbits around the Sun at an average speed of about 107,000 km/h (30 km/s). But why don't we feel this speed on Earth?
🚀 Apollo 16’s Deep-Space Spacewalk
This week in 1972, Apollo 16 astronaut T. K. “Ken” Mattingly carried out a rare 83-minute spacewalk while returning from the Moon.
His mission: retrieve valuable film cassettes from the Scientific Instrument Module bay on the service module.