Live Science on MSN
An extra solar system planet once orbited next to Earth — and it may be the reason we have a moon
Earth may have a moon today because a nearby neighbor once crashed into us, a new analysis of Apollo samples and terrestrial ...
Still, science being science, we needed proof—and we got it in 1992, when two astronomers found two planets orbiting a pulsar ...
Smithsonian Magazine on MSN
A Planet Slammed Into Earth 4.5 Billion Years Ago, Forming the Moon. The Projectile May Have Been Our Neighbor
Around 4.5 billion years ago, a planet called Theia is thought to have smashed into newborn Earth. The messy collision kicked ...
The picture-perfect launch of twin Escapade orbiters bound for Mars presages a fantastical new age in exploring the planets, ...
When most people think of astrology, they typically think of their zodiac sign, also known as their Sun sign—the one that ...
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