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 ...
When a meteor streaks across the sky, it's not just beautiful. It's nature's way of delivering a time capsule to Earth.
Study Finds on MSN
New Evidence Points To Where Our Moon’s Parent Planet Came From
Scientists traced the Moon's parent planet Theia to the inner Solar System, solving a 4.5-billion-year mystery.
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 ...
The observations expand the range of environments where habitable worlds might emerge. Using the James Webb Space Telescope (JWST), astronomers have peered deep into one of the Milky Way's most ...
Are planets in the solar system that are closer to the Sun older than the ones further away? – Gavriel, age 10, Paducah, Kentucky A cloud of collapsing gas created our Sun, the first thing to form in ...
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When did our solar system's planets form? Discovery of tiny meteorite may challenge the timeline
A tiny meteorite is rewriting what scientists thought they knew about the origins of our solar system. New evidence found in shavings from a meteorite known as Northwest Africa 12264 — a 50-gram (1.8 ...
Jupiter’s early growth carved rings in the solar system, delayed meteorite formation, and kept planets like Earth in stable ...
Moon’s precursor planet, Theia, disappeared billions ago, leaving scientists no direct chemical evidence to support the ...
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Why being in the 'right place' isn't enough for life
A planet's habitability is determined by a confluence of many factors. So far, our explorations of potentially habitable ...
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