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follow to chris Hadfield, crying in room could sting. REUTERS/Mikhail Metzel/Pool

Astronauts deserve to laugh in space all lock want, but the action of crying is quite different without gravity.

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When inquiry if he can cry in space, Canadian astronautChris Hadfieldanswered, "Can girlfriend cry in space? her eyes do tears but they stick together a fluid ball. In fact, castle sting a bit. For this reason — space tears don"t shed."

Unless an astronaut wipes the water away, tears in an are can type a large clump that have the right to break totally free of her eye, asThe Atlantic explained. For this reason in space, you can actually clock a sphere of her tears float around.

They can't consume usual items favor bread and also soda.


if in space, astronauts instead of tortillas because that bread. LaryLitvin/Shutterstock

According to The Franklin Institute, plenty of popular foodstuffs are too an overwhelming to deliver to and also eat in space.

Bread, because that example, can an outcome in crumbs that can damages equipment or accidentally obtain inhaled through astronauts. Therefore, according to NASA, tortillas have been used since the 1980s.

When it pertains to beverages, carbonated drinks room off the table due to the fact that they aren"t buoyant in a weightless environment. Vickie Kloeris, Subsystem manager for Shuttle and ISS food solution at Johnson space Center and program manager for NASA FTCSC, called NASA, "carbonated drinks at this time don"t do the trip since the carbonation and also the soda will certainly not separate in microgravity."

Salt and also pepper have likewise been banned for their capability to rise away and potentially damage equipment or acquire in astronaut"s mouth, ears, or nose. Thankfully, NASA has arisen liquid versions as a substitute.

According come, the only civilization ever to enjoy bread in space were the astronauts on NASA"s 1965 Gemini 3 mission — john Young smuggled a corned beef sandwich onboard.

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The Fisher an are pen is accessible for anyone come purchase. an are Pen/Facebook

If you"ve ever before tried to write through a pen upside down, you"ll understand that the doesn"t work. The ink needs gravity come flow. According to clinical American, astronauts from the US and also cosmonauts indigenous Russia both originally stuck to mechanically pencils in space.

Then in 1965, the Fisher Pen agency patented a pen whose cartridge is pressurized through nitrogen. That pressure pushes the ink towards the tip, allowing the pen come work even when upside-down, in extreme temperatures, or underwater. The pens room still supplied today.