Pristine Big Bang Gas Found
There is probably a cloud containing nothing but radon (the heaviest elemental gas) somewhere in the universe as well, right? If that exists would it disprove the big bang, or would it simply have been there by chance for billions of years, just like this one could have been?
Hydrogen and helium isotopes (and a little bit of lithium and beryllium) are made in the Big Bang. Everything heavier is made in stars. So these pure clouds can exist only as long as there are no stars nearby to pollute them with heavier elements. Stars are common in the modern universe, which is why it has been so hard to find such clouds.
Radon in particular is made in supernova explosions (and by the decay of radioactives which were made in supernova explosions) and there is no natural mechanism to separate it back out from mixtures of supernova debris. So in a sense, yes, if a massive, primordial, pure radon cloud was out there, it would disprove the Big Bang theory's prediction of nucleosynthesis, which can only make light elements.
Google Gmail Motion Beta
But ASL has different grammar and syntax than spoken English. It's closer to signed French.
See http://en.wikipedia.org/wiki/American_Sign_Language versus http://en.wikipedia.org/wiki/British_Sign_Language
SOFIA Sees Jupiter's Ancient Heat
NASA has active balloon and sub-orbital rocket programs.
For infrared/sub-mm astronomy see, for example:
Nearby, Recent Interplanetary Collision Inferred
The impact on Mercury which created the Caloris basin caused some wacky geology at the antipodal point to the collision. This is called "chaotic" or "weird" terrain. Link.
Shuttle and Hubble Passing In Front of the Sun
The edge like that because you see a shallower, thus cooler, portion of the sun's photosphere. As a cooler source of blackbody radiation, it looks darker and more orange. The phenomena is called limb darkening.
Dark Matter Discovered Near Solar System?
The summary misinterprets the results.
The instrument detects high-energy electrons. They found an excess (only 70, but statistically significant) with a particular energy, which if they come from a galactic source (like a pulsar), that source must be within 3000 light years. However, the researchers can't find an appropriate source.
Alternatively, this could be due to annihilating dark matter---the energy spectrum matches some models---but that's not necessarily coming from a particular source.