Submission + - The first stars in the Universe were invisible
StartsWithABang writes: You'd think it would be enough to form some stars, and "let there be light" would be a reality. But these stars don't become visible for literally hundreds of millions of years until after they form. It's not that they don't emit light — they do — but rather that the Universe is opaque to that light for up to half a billion years after those stars form. While modern telescopes like Hubble are inherently limited by this fact, the James Webb Space Telescope, which will observe in wavelengths that these dusty particles ought to be transparent to, might be able to finally probe the true light from the very first stars.
