That article described a test performed in Switzerland. Basically, a pair of photons were seperated and sent opposite directions, then forced to make a decision at another "fork in the road". The choices should be random, and they should not have any effect on each other, but that's not what's happening. Both photons, even though they're 7 miles apart, are making the exact same decision every time. This reveals that there's somekind of unknown connection between the two photons.
This raises the possibility that maybe in the future we'll be able to transmit information much faster than the speed of light.
Not really unexplained, but I thought that was cool as hell. VV Cephei A is about 1900 times bigger than our sun. Kinda puts into perspective how big the rest of the galaxy actually is (~100,000 light years in diameter), then the distance between galaxies, and finally the size of the entire universe.
Achieving light speed is still a snail's pace at the grand scale.