Share: Title:Zero-Gravity Pen: How NASA Spent Millions Developing a Pen Duration: 1:03:42 Plays: 937 views Published: 1 month ago Download MP3 Download MP4 Simillar Videos ▶️ 10:11 Who Created 'nothing' Our Universe Formed From 937 views • 1 year ago ▶️ 8:54 A Journey To The End Of The Universe 937 views • 4 years ago ▶️ 10:04 A Mysterious Journey To The End Of Space 937 views • 4 years ago ▶️ 8:46 Common Space 'facts' That Are Actually Untrue 937 views • 6 months ago ▶️ 8:03 The Entire History Of The Universe In 8 Minutes 937 views • 3 years ago