研究组观察到微透镜事件OGLE-2016-BLG-0007，这表明一颗系外行星的行星-恒星质量比大约是地-日质量比的两倍，且其轨道比土星长。将这一事件与微透镜巡天的更大样本结合起来，以确定宽轨道上行星的质量比分布。

2025年3月27日，北京市网信办、北京市商务局、北京市政务服务和数据管理局联合印发了《北京市数据跨境流动便利化综合配套改革实施方案》，规定了数据跨境流动的总体目标、工作原则、主要任务、保障措施四大方面的内容，围绕政策、应用、服务、技术、生态、监管六 ...

CAPE TOWN, April 23 (Xinhua) -- The South African government has called for immediate action to effectively curb the spread of foot-and-mouth disease (FMD) in some parts of the country.

Held under the theme "Win-Win Blue Future: China's Solution and the Global Vision," the forum commemorates the sixth anniversary of China's introduction of the concept of building a maritime community ...