I've you've ever been let down by your pen when you needed it the most, it might be time to turn to specialist hardware. Fortunately, there's still time to save over $20 on Fisher Space Pen's Original Astronaut Pen if you get to it before Amazon Prime Day ends tonight. It's currently at the cheapest price we've seen in last four years!
Used by astronauts since as far back as Apollo 7, the refillable pressurised ballpoint spaced pen is designed to keep writing at extreme temperatures, underwater, in zero gravity and at any angle, even upside down.
