The shape of the Earth's orbit stretches from circular to more elliptical and back again, with a periodicity of about 100,000 years.
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January
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- In Memoriam
- Something for the Weekend
- The wandering Earth
- Just beaten by Lucy
- The Hundredth Monkey Effect
- Awww shucks
- Who first determined the speed of light and how d...
- Something for the Weekend 2.0
- Something for the Weekend
- Our skin of four colours
- Cavernous and Crystal Caves
- Red Sky at night scientist's delight
- Outmunbered 2.0
- Pi to the N'th degree
- Things are not what they used to be
- Big ones and little ones
- The Parallax effect and how it tells us the distan...
- Euwww don't do that!
- What exactly is Ozone?
- Transfer complete!
- Ten things about snow
- The man with two brains
- Why does your voice change when you inhale Helium?
- If I could turn back time (I'd be an astronaut)
- 98.6 special or just something for the textbooks?
- A truly sweet discovery
- An easy smile
- What makes a star shine?
- Tesla: The greatest genius (oh and mad) inventor t...
- When we loose weight. where does the weight go?
- When you shake a bottle of fizzy drink, why does i...
- So Uranus is in retrograde huh
- The greedy brain
- What are the fundamental forces of Physics?
- A plethora of proteins
- The Cesium second
- Outmunbered
- And you thought you'd amount to something
- What exactly is the Leonid meteor shower?
- Bad breath points to sex
- This won't hurt a bit
- The Periodic Table
- What's a Google?
- Autumn, thou art a chemical reaction
- What is a metre?
- Going nuclear
- Why aren't animals with larger brains more intelli...
- Sir Isaac Newton’s most useful application of his ...
- Why does salt make you thirsty?
- Lucy in the sky with Diamonds
- Poor old 134340
- What holds the sky up?
- So you think you're an astronaut, prove it!
- The highest clouds and what constitutes Space
- The deepest hole
- If it's 12 Noon here what time is it at the Poles?
- The Lemmings didn't jump they were pushed
- Why does freezing water expand?
- Why do we always see the same side of the Moon?
- Why do Cat's and Rat's eyes glow in the dark?
- How many bones in the human body?
- What are Quanta?
- A Cosmic thought for the day
- A severely restricted view
- Exactly how long is a Light Year?
- Most life on Earth is fish food
- Why do astronauts float inside the ISS
- The size of the big blue ball
- How can a plane that weighs many tons stay in the ...
- As light as Air
- A heated reversal
- The universe is beige
- The no brainer
- Why are there different types of blood?
- What makes your cereal go snap, crackle and pop?
- The 42 minute gravity train
- Those amazing things we see with
- When the going gets tough the tough take a coffee ...
- Way to kill the planet dude!
- The amazing size and scale of stuff
- When the days were not so long
- Who invented the Telescope?
- Important Molecules
- Who was the first aircraft passenger?
- Will it Float?
- Most Of Your Body’s Cells Aren’t Yours
- Why is the sky Blue?
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January
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