The moon doesn’t have a thick atmosphere, its gravity is about 17 per cent that of Earth’s, and its temperatures swing from a blistering 127°C in the sunlight to a frigid 173°C in the dark.

The moon is Earth’s only permanent natural satellite, but other objects could be considered honorary moons. ... When Earth first formed, around 4.5 billion years ago, it had no moons, …

2021年6月8日 · The prevailing theory of the moon’s formation suggests that around 4.5 billion years ago, a Mars-sized boulder called Theia slammed into Earth, vaporising much, if not all of …

2020年2月26日 · Earth might have a tiny new moon. On 19 February, astronomers at the Catalina Sky Survey in Arizona spotted a dim object moving quickly across the sky. Over the next few …

2024年2月28日 · An annular solar eclipse happens when the moon’s elliptical orbit puts it further from Earth than usual, so it obscures most of the sun’s light but leaves what is known as a ring …

2025年2月12日 · The view of Earth from the moon, captured by the Apollo 8 crew in 1968. Lunar and Planetary Institute/NASA.

2023年2月8日 · Launching a million tonnes of moon dust around Earth could dim sunlight across our planet by 1.8 per cent. This would reduce the global temperature, but whether it would be …

2024年12月17日 · A huge rock orbiting near Earth appears to have originated from the moon, the second such object known to exist, with maybe more than a dozen awaiting discovery. The …

2011年11月30日 · What Earth forgets, the moon remembers. A long time ago, in this galaxy but far, far away… the sky is packed with bright stars and glowing nebulae, far denser than …

2018年12月18日 · On 24 December 1968, Apollo 8 completed the first circumnavigation of the moon by humans. As it emerged from the dark side, Earth crept over the lunar horizon. It was …