3 ms·
It's perfectly clear, even if they hadn't said 'observed age'. The entire point of the article is that we're witnessing the development of black hole, thirty ye
by archgoon 16y ago
It's perfectly clear, even if they hadn't said 'observed age'. The entire point of the article is that we're witnessing the development of black hole, thirty years in. How far away it is and 'how long ago' doesn't affect this.