Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Our solar system is approximately 4.6 billion years old, but ...

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The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper’s authors have dubbed ...

Researchers have discovered more than 6,000 exoplanets in our Milky Way. Of these, the sub-Neptune class, which are smaller than Neptune and more massive than Earth, are the most common. These planets ...