This is the text version of the interactive 3D documentary. 한국어
Danger ranking › Nearby stars
Nearby stars #1 · In about 1.3 million years it will pass the edge of the solar system and stir up comets
View in 3DThis small star in the constellation Serpens is about 62 light-years away today, but it is moving toward the solar system. Measurements from ESA’s Gaia satellite show that in about 1.3 million years it will come within about 0.17 light-years (about 10,000 AU) of the Sun.
Why?That is inside the Oort cloud, the huge shell of comets surrounding the solar system. A passing star’s gravity tugs on those comets and sends some of them falling inward.
What nextThe disturbed comets would drift inward over millions of years, so more of them might cross Earth’s orbit during that time. The star itself will not hit Earth.
See this scene in 3D →Impact-threat rankings and probabilities follow NASA/JPL’s Sentry risk table (as of 2026-11-04). The other categories are editorial rankings using the published criteria. Distances to stars can carry large uncertainties.