It formed 4.51 billion years ago, not long after Earth's formation, out of the debris from a giant impact between Earth and a hypothesized Mars-sized body called Theia.

2017年9月27日 · We’ve known for centuries about the effects on tides and biological cycles from a waxing and waning Moon. But it took space-age exploration to show us how the Moon is …

2025年1月30日 · Earth's Moon records evidence of our solar system's history in the form of impact craters, cooled lava landforms, ancient ice deposits, and more. Apollo astronauts …

6 天之前 · The Moon was the first new world on which humans set foot; the information brought back from those expeditions, together with that collected by automated spacecraft and remote …

The origin of the Moon is usually explained by a Mars-sized body striking the Earth, creating a debris ring that eventually collected into a single natural satellite, the Moon, but there are a …

2025年1月27日 · Earth’s Moon is thought to have formed in a tremendous collision. A massive object ― named Theia after the mythological Greek Titan who was the mother of Selene, …

6 天之前 · Throughout the 17th, 18th, and 19th centuries, investigators examined different theories on lunar origin in an attempt to find one that would agree with the observations. Lunar …

1 天前 · Moon - Exploration, Craters, Surface: Investigations of the Moon and some understanding of lunar phenomena can be traced back to a few centuries bce. In ancient …

The Apollo 12 Lunar Module Intrepid prepares to descend towards the surface of the Moon. 1969 NASA photo by Richard F. Gordon Jr.. The physical exploration of the Moon began when Luna …

2021年3月15日 · 1609: Hans Lippershey invented the telescope. 1610: Italian astronomer Galileo Galilei made the first telescopic observation of the moon. 1610: Thomas Harriot and Galileo …

2020年7月17日 · A brief history of moon exploration. In the 1950s, the Cold War sparked a race to visit Earth's moon with flybys, robots, and crewed missions. Here's what we discovered—and …

2025年2月5日 · In this monograph entitled Governing the Moon: A History, author Stephen S. Buono illuminates the treaty’s deep origins, the contributions of international space lawyers, …

2019年11月15日 · The moon’s history is a violent one, starting with its birth when a Mars-sized object — dubbed Theia — smashed into the young Earth billions of years ago. The resulting …

2025年2月3日 · A groundbreaking study led by a team of geochemistry scientists has challenged long standing assumptions about the Moon's early evolution. It revealed that its crust was not …

2025年1月10日 · Despite its timeless appearance, the moon has not always been in Earth's orbit, and scientists continue to investigate its true age. Hovering alongside Earth for millennia, the …

As far as we know, the ancient Greeks were the first to treat the Moon as a physical object in space, but the idea of the heavens as a celestial clockwork, maintained by divine power …

Moon exploration, the investigation and study of the Moon by robotic and crewed spacecraft. Following the launch in 1957 of the U.S.S.R.’s satellite Sputnik, the first spacecraft to orbit …

2025年1月31日 · While the Moon has always been an object of wonder and scientific interest to humanity, lunar exploration began in earnest in the 1950s, with the United States and the …

1878 – George Darwin puts forward his theory that the Moon split apart from a rapidly spinning young Earth, an idea derived from his mathematical research into tidal forces. This becomes …

2025年2月3日 · We think the moon formed after a colossal collision between Earth and another huge object created two balls of molten magma. But we don’t know exactly when or how. Now, …

2025年2月5日 · Two Grand Canyon-size features on the far side of the moon were likely formed in about 10 minutes after an unknown object slammed into the moon 3.8 billion years ago.

2024年12月18日 · But the new study suggests that the moon formed earlier — around 4.51 billion years ago — and then experienced a dramatic “re-melting” event at the time other scientists …

2021年9月14日 · From year to year, the Moon doesn’t seem to change dramatically. Craters and other formations appear to be permanent now, but the Moon didn’t always look like this. …

2025年1月29日 · Scientists have studied the moon's surface for decades to help piece together its complex geological and evolutionary history. Evidence from the lunar maria (dark, flat areas on …

2025年1月21日 · Scientists have studied the moon’s surface for decades to help piece together its complex geological and evolutionary history. Evidence from the lunar maria (dark, flat areas on …

Missions to the Moon have been numerous and include some of the earliest space missions, conducting exploration of the Moon since 1959. The first partially successful lunar mission was …

2025年2月3日 · The moon may still be geologically active, judging from the way the lunar far side is wrinkling as the moon contracts. At least, that's what planetary scientists who have …

Name of hypothesis Proposed by The hypothesis Disproven? Giant-impact hypothesis: Reginald Daly Suggests that the Moon formed from the debris of a collision between the early Earth and …