Your screen isn't fuzzy—you're looking at planets 130 light-years away. Exoplanets, or planets beyond our solar system, are so small that we usually detect them by measuring the effect they have on their star: they may cause the star to wobble a bit, or make it a little less bright as they pass in front of it. But our NASAWebb telescope is so powerful that it can spot, not just distant stars, but the much smaller worlds that orbit them. The HR 8799 star system has long been of interest to astronomers for what it can tell us about how planets form, and Webb is giving us a better look at it than ever. Not only are we getting a direct look at these four gas giants, Webb's data tells us that these worlds are rich in carbon dioxide, suggesting that they formed similarly to Jupiter and Saturn in our home system. Image description: Four fuzzy planets are scattered across a black background in this annotated photo. Each planet has a letter and dashed line next to it, indicating the planet'...