Monthly Archives: March 2013

  • Exploding stars and DNA

    Our Galaxy is filled with high-energy subatomic particles generated by exploding stars or supernovae, also known as cosmic rays. These particles strike the Earth’s atmosphere and produce more (secondary) particles, which damages the ozone layer and causes DNA damage to terrestrial and marine life.

    In Carl Sagan’s words: ” The evolution of life is driven in parts through mutations by the deaths of distant stars. We are, in a very deep sense tied to the cosmos.”

    Life has evolved over the past ~ 3 billion years in presence of this radiation, which itself has varied considerably during the period. As demonstrated by the Miller-Urey experiment, lightning plays a very important role

  • @HabWorlds Twitter Digest, 2013-03-18 to 2013-03-24

  • @HabWorlds Twitter Digest, 2013-03-11 to 2013-03-17

  • A new Pope and a new particle – is it déjà vu?

    Habemus Papam et Deus Particular – We have a Pope and the God particle.
    The news bears an eerie likeness to Dan Brown’s plot in Angels and Demons.

    Last week two important events took place. In the Vatican, the College of Cardinals were guided by the Holy Spirit (or so the legend goes) to choose Jorge Mario Bergoglio as the new Pope of the Roman Catholic Church. As the world learned more about Pope Francis (who as it turns out is a chemistry graduate), not far from Rome, in

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  • @HabWorlds Twitter Digest, 2013-03-04 to 2013-03-10

  • @HabWorlds Twitter Digest, 2013-02-25 to 2013-03-03