据美媒7月2日报道，好奇号火星车在红色星球上拍摄到了期待已久的地质结构，被称为“蜘蛛网”的景象，这表明火星曾有水流活动，美国宇航局近日宣布了这一发现。

加州理工学院（California Institute of Technology，简称Caltech或CIT）以其极小的规模、严苛的学术标准和卓越的科学成就闻名于世。在2025年U.S.

With 97.3% of Chinese minors online, short videos are becoming a key tool in sparking scientific interest. Experts urge ...

Youhan and Yu Youhan. This exhibition explores the conceptual foundations behind Yu Youhan’s artistic evolution. By juxtaposing his early work with his later endeavors, it creat ...

China is turning inbound “traffic” into long-term “retention” as visa-free policies expand to Latin America and the Gulf. With easier entry, streamlined tax refunds, and rising interest in rural desti ...

哈佛真有人啃书到凌晨四点半吗？有，但是很少。顶尖学霸确实都很勤奋，但 比勤奋更重要的是——“学习力”。 哈佛商学院工商管理系的柯比教授（W·C·Kriby）就提出： 唯有学习力，才能让孩子真正提升学习效率，成为学习的主人。

稀疏奖惩机制是强化学习中的一个重要概念，指的是在强化学习任务中，智能体（agent）只有在完成任务或达到特定目标时才会获得奖励，而在其他情况下不会获得任何奖励或只获得非常稀疏的奖励信号。

The interactive installation epitomizes the global surge in AI, which has empowered a vast number of industries worldwide. AI ...

The interactive installation epitomizes the global surge in AI, which has empowered a vast number of industries worldwide. AI has been a recurring theme at the Summer Davos for years, but ...