At long last, we have visual evidence of the 2008 TC3 impact over the remote Sudanese skies. Admittedly, it’s not a video of the dazzling fireball ploughing though the upper atmosphere, before detonating with the energy of a small nuclear weapon, but it is a great picture of the smoky remnant after the explosion.
The meteorite train seen in the image above has been sheared and twisted by high altitude winds, leaving the snake-like pattern suspended in the air. The tenuous debris reflects the dawn sunlight, in a not-so-dissimilar way to the noctilucent cloud produced after a rocket launch (pictured left).
There may not be any ground-based imagery of the 1.1-2.1 kT fireball after asteroid 2008 TC3 hit the Earth’s upper atmosphere above Sudan, but we now have the first satellite observation of the impact. 2008 TC3 (a.k.a. “Brian” as I lovingly named it in my previous post) hit at 02:43am (UTC) yesterday morning, three minutes before the predicted re-entry. This is a huge moment for asteroid hunters: 2008 TC3 is the first ever asteroid to be discovered and accurately forecast to hit our planet.
The above image was taken by the weather satellite Meteosat 8, as Jiri Borovicka of the Czech Academy of Sciences explains: “The explosion was visible in all 12 of the satellite’s spectral channels, covering wavelengths from 0.5 to 14 microns,” he said. “The satellite takes pictures every five minutes; the fireball appeared at 0245 UTC and had faded away by 0250 UTC.”
2008 TC3 wasn’t a particularly interesting asteroid. It wasn’t very big (only 1-5 metres wide) and it didn’t really stand out as being special (if it was special, we didn’t have any time to realise it anyway). If 2008 TC3 was in a crowd of other asteroids you wouldn’t have picked it out. In fact, it was that “normal” that it wasn’t named, it just kept its original asteroid designation number. 2008 TC3 was an ordinary piece of space rock in an extraordinary situation.
Oh no! It’s all over. The US Large Hadron Collider lawsuit filed by Walter Wagner and Luis Sancho has failed. On Friday, Hawaiian Federal Judge Helen Gillmor officially declared that the American judicial system has no jurisdiction over the largest experiment ever devised by mankind. Although Wagner and Sancho were suing the US partners in CERN, it would seem this convoluted and inaccurate attempt at proving the LHC will destroy the Earth was a bridge too far for the Honolulu court to entertain.
This decision ends the seven month battle for Wagner, following quickly behind Otto Rossler’s eleventh-hour failed attempt at the European Court of Human Rights last month to convince lawmakers that the LHC was going to turn the Earth into a dot.
So in the eyes of the law (and every other sane person on the planet), the LHC is safe and the claims about the production of micro-black holes, strangelets, monopoles, bosenovas etc. etc. are totally unfounded.