A study argues that a dust cloud with dust grains the size of microscopic bacteria blanketed the earth the after the asteroid impact thought to have killed off dinosaurs.
NASA said Tuesday that its DART mission had successfully altered the orbit of asteroid Dimorphos. The impact shortened the length of its orbit by 32 minutes.
NASA's DART spacecraft has successfully collided with an asteroid as part of a test to prepare the Earth for defensive measures against possible threats in the future.
beat the cornhuskers 23-16. nobody s complaining about that. fox news alert, in a few moments, the world s first all civilian crew to orbit earth is scheduled to return to earth aboard the space x dragon. 7:06 p.m. eastern time. that s just about ten minutes from now. we will go to life liberty levin shortly after the capsule splashes down. we are standing by on this. joining us now former nasa astronaut clayton anderson, also the author of ordinary spaceman . let s bring in a distinguished professor of mechanical and aerospace engineering in new york. thanks all of you for being here. doctor, let s start with you. the splashdown i mean, the take-off, the launch of a rocket is always a very harrowing time,