Detailed text transcripts for TV channel - CNN - 20190113:11:55:00
Good news and bad news this morning. our galaxy is spiraling toward a catastrophic collision is the bad news. the good news we are not going to be around for it because it's happening in quite sometime. >> joining us is retired nasa restaurant leroy chiao. explain the collision and when does it happen? what are we slamming into? >> many other gal luxembouraxie there. 2 billion years ago it's possible the milky way may collide with it or it collide with us. it's a pretty big galaxy. i think we are medium-sized about a hundred thousand light years across and take a beam of light about 100 thousa...