Scientists have long believed that the Moon was formed by a massive object crashing into the Earth. But what was that thing ...
Space.com on MSN
Time travels faster on Mars than on Earth, and here's why
"A three-body problem is extremely complicated. Now we're dealing with four: the sun, Earth, the moon and Mars. The heavy ...
Discover the Moon Phase Today, December 10, 2025. It's a Waning Gibbous (65-68% lit). Learn the 8 phases, lunar cycle, and ...
On Earth, knowing the time feels simple. Your phone pings the same second as a GPS satellite and an atomic clock in a lab.
Apollo samples provide evidence: Researchers analyzed Moon rocks brought back by the Apollo missions and, for the first time, ...
New Scientist on MSN
Forming moon may have taken three big impacts early in Earth’s history
Conventionally, the moon is thought to have formed during one big impact, but a three-impact model might make more sense ...
Smithsonian Magazine on MSN
A Planet Slammed Into Earth 4.5 Billion Years Ago, Forming the Moon. The Projectile May Have Been Our Neighbor
Little is known about the long-destroyed moon-forming planet, Theia. But it may have been born in the inner solar system—just like Earth—a new study suggests ...
Theia, the world that helped form the Moon, came from the Solar System. Chemical clues in Earth and Moon rocks reveal this close origin.
"We reported hints of methane, but the question is, 'is the methane attributable to molecules in the atmosphere of the planet ...
Skywatchers witnessed a spectacular Cold Moon on December 5, 2025, the year's final supermoon. Its proximity to Earth made it ...
About 4.5 billion years ago, a colossal impact between the young Earth and a mysterious planetary body called Theia changed everything—reshaping Earth, forming the Moon, and scattering clues across ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback