Comment Re:Oldest star to date, but likely came from anoth (Score 2) 141
It is indeed historical. The ancient Greeks divided the stars in 6 categories or magnitudes, magnitude 1 for the brightest stars to 6 for those barely visible with the naked eye. The mathematical formula only emerged later (1856 by Pogson) who defined the brightness scale by: a magnitude 1 star is 100 times brighter than a magnitude 6 star and Polaris is magnitude 2 which more or less fitted the ancient magnitude scale.
Comment Yelp (Score 1) 75
Comment Re:Good! (Score 1) 370
Just meat with a couple of them
animal or human?
Comment Re:2700 degC? (Score 1) 84
Comment Re:10 Years of Research & unpressurised (Score 1) 297
Comment Re:Tesla is a toy for the wealthy few. (Score 1) 287
Comment Re:The Captain has left the building (Score 1) 633
Comment Re:Awesome (Score 2) 582
Comment Re:None of the above (Score 1) 328
Comment Re:Amazing (Score 1) 185
Comment Re:Guess he has never heard of VPN and proxies (Score 1) 390
Comment Re:Not to worry, I will have written the protocols (Score 1) 265
Comment No surprise... (Score 4, Informative) 67
There are only 2 types of Earth crossing asteroids: Apollos with a semi major axis larger than 1AU and perihelion smaller than Earth's aphelion and Atens with a semi major axis smaller than 1AU and aphelion larger than Earth's perihelion. There are 4803 known Apollo asteroids (I don't know where the 5200 number in the summary comes from but IAU's Minor Planet Center knows of only 4803) and 747 known Atens, so there was a very good chance that the meteorite was an Apollo...