This is the personal blog of greenygrey

It’s not today, for those who woke up to a covering of snow, as I did. And 3 weeks to Crimbo Day too!

Just a TV round-up of docs I've watched this week:

Well, the likely answer to the title question is 650 million years ago, according to Catastrophe episode 2, which looked at how our sapphire jewel of a planet in space was once a bit parky to live on, as it was completely covered in ice, and therefore if you were walking on the moon at the time our world would have resembled a snowball more than a quality marble. It was apparently less hospitable than Mars, where they have just found underground glaciers, so maybe there is life on Mars after all?

You can see more about Catastrophe, and even watch it, at:
http://www.channel4.com/science/microsites/C/catastrophe/programmes/programme-two.html
More on Mars at: http://apod.nasa.gov/apod/ap081124.html

Oceans was in the Indian Ocean this week, and had bad news for sharks, but good news for dugongs (what’s a dugong? A 10ft fish that is supposed to have inspired stories of mermaids)http://www.bbc.co.uk/iplayer/episode/b00fzb9c/Oceans_Indian_Ocean/

If you now feel that you know when the Indian Ocean was a snowball catastrophe, think again, as Horizon this week investigated the meaning of time, and found out that nobody has a clue!tp://www.bbc.co.uk/iplayer/episode/b00fyl5z/Horizon_Do_You_Know_What_Time_It_Is/

There’s a bit of viewing for you if you're snowed in at home, or just taking a long weekend!