Any unrestrained liquid in space will form a perfect sphere.

I guess first off I should define what is meant by 'unrestrained.' Here on Earth, whenever we see falling liquids they obviously do not take the form of a perfect sphere (have you ever drawn a round raindrop before?). This is not for a lack of 'trying' on the liquid's part; there are simply other forces at work here on Earth that do not allow liquids to become completely spherical. The two culprits that 'restrain' liquids on Earth are gravity and the atmosphere. Gravity keeps the liquid moving toward the Earth and the gases in the atmosphere provide an uneven drag, with both factors resulting in raindrops that are flattened out and deformed. 

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You weigh less at the Equator

The reason for this is that Earth bulges outward at the Equator because of the planet's rotation and its tendency to stay in a straight line while moving. This creates a gravitational field that is uneven, with more pull on the poles than in the middle. Because of this bulge, a person standing at the Equator is really further from the majority of Earth's mass than a person standing at either of the poles. But don't get your hopes up too much - the weight difference is a mere 0.5%! That's less than a pound for anyone weighing less than 200 pounds.

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On March 19th, the Moon will be the closest it has been to Earth in 18 years.



The moon - stalking the Earth since 4.4 billion BC. Picture courtesy NASA

In fact, the Moon will only be 221,556 miles away! This event, called a lunar perigee, is a source of contention between scientists and astrological theorists. Some believe that having the Moon so close can cause all sorts of natural disasters, such as the 1938 New England hurricane, Cyclone Tracy in 1974, and Hurricane Katrina in 2005 - all events which fell on or near the appearance of a “SuperMoon.”

Astronauts grow taller in space.

Believe it or not, this is true! On space missions of 12 weeks or longer, astronauts have been known to grow up to an additional two inches taller! For this reason, space suits are fitted to each astronaut with two inches of room to grow. The reason for this phenomenon is not known for certain, but scientists believe it is due to the lack of gravity in space. This weightlessness can also cause astronauts to lose bone mass! The lack of gravity prevents the compression of the spine which would otherwise occur on Earth. Once fully extended, the spine can apparently lengthen up to 2 full inches!

Source: Helium

The 3rd astronaut on Apollo 11 never got to walk on the moon.

 

Michael Collins, command module pilot of the Apollo 11 lunar landing mission.



While Neil Armstrong and Buzz Aldrin received the honors of being the first and second man to walk on the moon, their other crew member had to wait in the ship! This man, Michael Collins, may have had the toughest assignment of all! Collins had to wait behind in the mothership all alone while Armstrong and Aldrin explored the lunar surface. While the other two were down below, Collins also passed behind on the dark side of the moon (the furthest distance any human has been from Earth!) - and out of radio communication for quite some time. If something had gone wrong with the lunar lander’s engine, Buzz and Neil could have easily been stranded to die on the surface of the moon.

This would have meant that Collins would have had to pilot the ship back to Earth by himself! He also believed that such a tragedy would have left him a “marked” man for life, since he would have returned as the lone survivor. Fortunately, the Apollo 11 mission was a success and President Richard Nixon did not have to read the speech he had prepared in case of a tragedy!

While he may end up getting less recognition in the history books, the legendary airman Charles Lindburgh wrote to Collins telling him that his mission had "greater profundity ... you have experienced an aloneness unknown to man before".

Source: Guardian, UK