An orphan planet free-floating in space more than 100 light-years from Earth may have a parent star after all, though the relationship could hardly be considered close.
Are there Earth-like planets in a neighboring star system?
For the first time, astronomers have found compelling evidence that the dust-free gaps surrounding young stars are caused by massive exoplanets.
This year has been filled with weird space stories, here are some of our favorites.
How low can you go? Astronomers have found a star with an incredibly low concentration of heavy elements that still has a sizable planet around it — the most metal-poor star ever discovered with an orbiting, rocky planet.
A little statistics knowledge suggests we may be way underestimating a typical alien's stature.
When it comes to studying planets beyond the solar system, more is indeed merrier, especially when the results clear up a long-standing mystery.
A massive planet orbiting about 650 times farther from its parent star than Earth circles the sun appears to have been booted into the outskirts, a graphic illustration of what may have happened to our solar system’s early family.
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