They can DEFINITELY breathe antimatter
Antimatter - band - was created in 1998.
Antimatter - album - was created in 1993.
No, antimatter does not possess negative mass. Antimatter has the same mass as regular matter, but opposite charge.
Antimatter was discovered in 1928 by Paul Dirac.
Antimatter was discovered in 1928 by Paul Dirac.
Lights Out - Antimatter album - was created in 2003.
Absolutely not - Antimatter is a hypothetical form of matter that is as yet unsubstantiated. Answer It's possible but not probable. And antimatter is not hypothetical
That is not currently known. There is a slight assymetry between matter and antimatter, but so far, it seems that this assymetry is not enough to explain why there is only matter, and hardly any antimatter, in the Universe. Without such an assymetry, there wouldn't be either matter or antimatter in the Universe - just radiation. For more information about what is known, and what isn't, check the Wikipedia article on "Baryon asymmetry".
Antimatter is real. Liking or disliking it is irrelevant.
antimatter has always been here but nobody knew about it until recently
When antimatter comes into contact with matter, they annihilate each other.