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 ...
Discover Magazine on MSN
Neptune Is the Furthest Planet From the Sun, But It Still Experiences Auroras
Which planet is the furthest from the sun? Some may think it’s Pluto, but it’s actually Neptune. Learn more about this ice ...
An international team has made a significant breakthrough in understanding the tectonic evolution of terrestrial planets.
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