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Our solar system has a new mysterious visitor—what is it?
Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...
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The Early Solar System: What Did the Planets Look Like 3.8 Billion Years Ago?
Have you ever wondered what our solar system looked like 3.8 billion years ago? Were the planets we know today anything like ...
A 7-Billion-Year-Old Ice Ball Just Entered Our Solar System
A newly discovered ice comet from deep space may be over 7 billion years old, making it the most ancient comet scientists ...
NASA confirms 3I/ATLAS as third interstellar object passing through our solar system
NASA confirms the arrival of 3I/ATLAS, the third interstellar object. The ATLAS project spotted it in June 2025. Its speed ...
Rare object from another star spotted zipping around our solar system
A new interstellar object, A11pl3Z, has been discovered in our solar system, marking the third such object to be observed. It ...
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Meteorite causes rethink of how and when our solar system formed
Rocky bodies called protoplanets were thought to have formed slightly earlier in the inner solar system than those beyond the ...
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Our Solar System, the Milky Way, and the Stars: A Journey to the Edge of Space
Take a journey through the Milky Way galaxy, exploring the wonders of our solar system and the distant stars that illuminate the night sky. The Milky Way is home to over 100 billion stars, each with ...
The Parker Solar probe captures closest-ever images of the Sun. See the results.
Newly released imagery from NASA shows the Sun's corona in stunning detail after the Parker Solar probe performed its closest-ever flyby.