A couple of of things on Fed Starship firepower.

[Kamakazie Sith]

The Dreadnaught missile carried a thousand TONS of antimatter, not a thousand kilograms.

So assuming metric tons of antimatter, that's 22,000 GT of TNT.

Is that a bad thing?

Actually it carried 2000 kg M/AM device.

[Luzifer's right hand]

The Dreadnaught missile carried a thousand TONS of antimatter, not a thousand kilograms.

So assuming metric tons of antimatter, that's 22,000 GT of TNT.

Is that a bad thing?

Incorrect. The Dreadnaught missile was stated to carry 1000 KG of antimatter. That would put its yield at around 48000 megatons, less than quarter of a heavy turbolaser but very powerful by Trek standards.

My number of 22GT per 1000 kg is incorrect (was too tired yesterday, used 500kg matter+500kg antimatter -_- ), your number is correct, I would put the yield at about 45GT for 1000kg antimatter.

[Luzifer's right hand]

22 GT is not enough to kill a planet but it is more then enough to kill 99% of all life on a planet. You drop a 22 GT explossion on earth today and watch as the world populations die very rapidly.

did you read this?

The Asteroid which hit the Nördlinger Ries(Germany) about 15 Million years ago did not cause widespread deaths in other parts of the world( 1,2 km, 5TT TNT)

5TT=5000GT

NASA says 1 TT is enough to wipe out all major life, I'd like to see your proof that the impact was that strong.

I bet they used the "atomic winter" brain-bug

http://www.grc.nasa.gov/WWW/K-12/Number ... id_hit.htm
(I searched for a Nasa site because it's hard to find a creditable source in the net)

5 x 10^7 megatons

= 50 TT but birds and mammals survived.

I believe many people think 1 TT is too much for environment of earth because they heard the "we have enough nukes to destroy earth" brain-bug. Life is much harder to kill like some people would like to make us believe.

but the NASA has surprisingly little information about impacts in the past.

http://www.uwgb.edu/dutchs/planets/impact4.htm

but I admit that 5TT is the maximum estimate, it's possible that the impact was only about 1TT.

Ries Bavaria, Germany Lat. 48.88; Long: 10.62; Diam. (km): 24; Age (My): 14.8 /- 1
E. M. Shoemaker and E. C. T. Chao, 1961; New evidence for the impact origin of the Ries Basin, Bavaria, Germany, JGR v. 66, p. 3371-3378.
Horn, Peter ; The Ries Kessel, Germany; An Example of Meteorite Impact as a Terrestrial Geological Process; Geoforum, v. 12, p. 91-95; 1972
Dennis, John G. ; Ries structure, southern Germany, a review; Journal of Geophysical Research, v. 76n. 23, p. 5394-5406; 1971

[Luzifer's right hand]

NEO yields