Orion Span, a Houston-based space tech startup, has announced plans to launch the first-ever luxury space hotel into Earth's orbit by 2021.
After over a decade in development, Virgin Galactic, a private space travel service founded by billionaire Richard Branson, is nearly ready to enter orbit.
After a review of celestial data spanning 27 centuries, a team of astronomers has determined that Earth’s orbit slows almost two milliseconds every 100 years.
(AP) -- Like a poodle on a leash, a tiny asteroid runs ahead of Earth on the planet
