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Journey to the Edge of the Universe Facts

The scattered remains of a dead star is known as a crab nebula. Being more than 6000 light years from earth, this photo depicts the sights deep inside a stellar graveyard.

The scattered remains of a dead star is known as a crab nebula. Being more than 6000 light years from earth, this photo depicts the sights deep inside a stellar graveyard. (View larger version)

Photograph by Red Vision/ C4 Studios / Pioneer Productions

Published

  • The cosmic wonders of Saturn's rings are beautiful but they are not a solid structure. Each ring is made up of particles of debris – dust, rock, ice – some as microscopic as grains of sand, some gigantic – like skyscrapers.

  • Saturn's moon Titan is actually larger than both Mercury and Pluto.

  • Our universe likely contains more than 100 billion galaxies, and each of those galaxies may have more than 100 billion stars.

  • The largest stars in the universe are cool supergiants, and they may be 2,600 times the size of our Sun.

  • A magnetar, a rare type of neutron star, is the strongest magnet in the universe. Magnetars are so magnetic that they could strip the information off of your credit card at a distance of 100,000 miles, or halfway to the Moon. Get much closer and the magnetic force will rearrange the atoms in your body.

  • The first stars exploded about 13 billion years ago, but because their light takes so long to reach us, we can still see what they looked like and even watch them explode.

  • If you attempted to count all the stars in a galaxy at a rate of one every second it would take around 9,500 years to count them all.

  • One day on Pluto is about the length of a week on Earth.

  • Due to surface tension, free moving liquids in space will form nearly perfect spheres.

  • A supermassive black hole with more than 4 million times the mass of our Sun lurks at the center of the Milky Way.

  • Passing Jupiter in 1974, Pioneer 11 reached the blistering speed of 107,000 mph – the fastest speed obtained by any manmade object to date.

  • Life's most essential components – carbon, hydrogen, oxygen, and nitrogen – are found in similar proportions in comets and human beings.

  • The universe is at least 78 billion light-years wide.
2 comments
George Gaulke
George Gaulke

Watching this along with other space documentaries about traveling through space, I have one question that may have already been asked.

What would happen to Mars if it was on same orbit as Earth only 180 degrees moving at the same speed so they never collide?

George Gaulke
George Gaulke

Watching this along with other space documentaries about traveling through space, I have one question that may have already been asked.