2016年，一个叫DeepMind的团队用AlphaGo打败了李世石，全世界都在讨论强化学习有多厉害。但很少有人注意到一个尴尬的事实：那套系统在正式比赛前，自己跟自己下了差不多3000万盘棋。如果这是一个物理世界里的任务呢？如果AlphaGo下的不是围棋，而是操控一个机械臂去抓取易碎的杯子？3000万次尝试，意味着3000万次可能的摔碎 ...

Uranus and Neptune may resemble twins today, but their chemistry is telling us that they are more like cousins with very ...

Uranus is not the heatless world it once appeared to be. A 2025 analysis found that the planet emits about 13% more energy ...

Astronomers using the powerful eye of the James Webb Space Telescope have spotted a previously unknown moon whirling around Uranus, according to NASA. The discovery boosts the number of moons known to ...

Uranus and Neptune may not share the same origins after all. A new study published in Astronomy & Astrophysics reveals a ...

Like other giant planets, Uranus has a set of rings and more than a dozen moons that make it resemble a miniature solar system unto itself. But unlike its king-sized neighbors (and the rest of the ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Neptune and Uranus ...

Uranus wasn't ready for its closeup 38 years ago. I speak of the 7th planet from the Sun, and third largest in our solar system, which received a flyby — 50,000 miles above the planet — from the ...

The eight major planets of the Solar System all possess their own unique features. The rocky planets have craters, ridges, mountains and more: evidence of a violent past and interior activity. All the ...