It's not yet clear why researchers decided to point Webb in its direction, but little is known about the nebula, including the mass of the star creating it. That matters because a more massive star could eventually explode as a supernova, while a smaller, sun-like star would keep shrugging off layers of material until only a dense core remains and cools over time.
currentStep = currentStep.next(recordedEvent.result);
。关于这个话题，爱思助手下载最新版本提供了深入分析
Жители Санкт-Петербурга устроили «крысогон»17:52
However, CCS technology is not without critics, who warn it might discourage efforts to cut CO2 emissions.