FT Digital Edition: our digitised print edition
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.
，推荐阅读safew官方版本下载获取更多信息
The report should include a risk assessment and state whether any modifications have been made since installation, the court heard.
However Nasa's lunar plans have a major missing part - the lander that will take astronauts to the Moon's surface has not yet been selected.