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Astronomers may have found a new Earth-size world, but there’s a twist

Astronomers are closing in on what looks like a rare prize: a world almost the size of Earth, circling a Sun-like star at a distance that gives it a familiar, year-long orbit. The candidate, known as ...
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'Planet Y' theory hints at hidden Earth-size world lurking in the solar system — and it could be much closer to us than 'Planet Nine'

Astronomers believe they have uncovered evidence of a previously unknown ninth planet lurking in the not-too-distant reaches of the solar system. This hypothetical world, dubbed "Planet Y," could be ...
Science Daily

Super-Earths and mini-Neptunes: More Earth-like planets may exist

A new study presents a compelling new model for the formation of super-Earths and mini-Neptunes -- planets that are 1 to 4 times the size of Earth and among the most common in our galaxy. Using ...
Ventura County Star

NASA tracks stadium-size asteroid passing near Earth: Here's how to watch it live

At 950 feet in diameter, the asteroid is about the size of a typical stadium, or three football fields. The Virtual Telescope Project plans to stream the event live on YouTube. An asteroid about the ...