What If on MSN
What if there was a second Earth in our solar system?
In 2015, NASA’s super powerful Kepler Space Telescope discovered the closest copy of Earth to date. It’s called Kepler-452.
The eROSITA spacecraft has built the most precise map of soft X-rays over Earth, observing a fascinating phenomenon driven by ...
The interstellar comet 3I/ATLAS was the third object ever discovered in our solar system that originated from another star system. Despite a viral conspiracy theory, NASA officials have repeatedly ...
Easy: Venus is the weirdest planet in the solar system. The most distant major planet from the sun and the last stop before ...
Rather than slowly condensing over millions of years, the first building blocks of Earth and other planets may have formed ...
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