The Top Most Dangerous Astronomical Object in the Universe?

[Swat 3]

Gamma rays made The Hulk, one of the Earth's mightiest heroes.

Dangerous? Yeah, but it also saved the world numerous times.

Be real!
Hulk is impossible.
 Oh wait this is Blockland Forums.

[Ad Bot]

[gr8dayseth]

The universe itself.
*Plot twist*

[Choi]

In all seriousness, meteors. They pose a much higher chance to kill us all before beams of gamma rays and the sun engulfing us.

[Aware]

Blackholes are puny.

They don't affect stuff that is light years away.
Gamma-Ray bursts and supernovae.

Being able to suck in time and light = puny

[SeventhSandwich]

If you're talking about likelihood, sure.

If the Earth was close enough to and in the path of a gamma ray burst, it could fatally irradiate most of the life on Earth, as well as strip off the ozone layer, leaving the rest of what's left alive to be killed of by the sun's radiation. It's a potentially planet sterilizing event.

Yeah, I was mostly talking about the relative probability of it occurring in a reasonable amount of time. If you factor that in, it's much more likely that in the time it would take to get hit by a gamma ray burst, we'd just blow ourselves up with nuclear arms.

[RedGajin]

space doesnt exist only god heathens

[Swat 3]

The universe itself.
*Plot twist*

Well technically some people theorize that since we don't know exactly when/how the Universe began, we won't know when/how the Universe will end.

I think the very fabric of space and time will stretch through the expansion of the Universe is enough, it'll stretch back and everything will go in reverse in a very few years until we go into the point where the Universe "started" and it bounces back in a new way so everything is different and the Universe goes farther.

[Axo-Tak]

Antimatter is more powerful than nuclear weapons.

Just a kilogram or two(?) of antimatter can destroy the whole Earth, even if it isn't touching anything solid. (Any matter can start the annihilation reaction, whether it be an atom of oxygen or just a simple electron.)

[dkamm65]

Well technically some people theorize that since we don't know exactly when/how the Universe began, we won't know when/how the Universe will end.

I think the very fabric of space and time will stretch through the expansion of the Universe is enough, it'll stretch back and everything will go in reverse in a very few years until we go into the point where the Universe "started" and it bounces back in a new way so everything is different and the Universe goes farther.

We have a pretty good idea of how the universe will end. As for how it started, that's anyone's guess.

For more on the ultimate fate of the universe, this timeline of the future is quite the intriguing read.

Just a kilogram or two(?) of antimatter can destroy the whole Earth, even if it isn't touching anything solid. (Any matter can start the annihilation reaction, whether it be an atom of oxygen or just a simple electron.)

Uh, wrong.

Matter and antimatter "cancel each other out". To destroy the whole Earth, you'd need an Earth's worth of antimatter.

[Pandan]

Greed

[Jairo]

the event horizon of a pulsar is the strongest gravitational force in the known universe

[RedGajin]

Greed

sodeep

[rockslide26]

Black holes. They forget stuff up. And they can move. fast.
http://io9.com/5915643/astronomers-discover-massive-black-hole-careening-away-from-its-home-galaxy

[Blockzillahead]

No doubt Blackholes. Although there are other very dangerous objects roaming around, let's say a meteor heading towards earth at several hundred miles a second.

[Ceist]

it's depressing looking at the ways the universe could end. so i formulated an idea that the big bang right now is still producing matter, anti-matter, and energy and that our galaxy has moved so far out in the billions of years since the beginning, that new galaxies are forever spawning.