This diagram provided by NASA/JPL-Caltech shows the trajectory of interstellar comet 3I/ATLAS as it passes through the solar system. (NASA/JPL-Caltech via AP) CAPE CANAVERAL, Fla. (AP) — NASA has ...

3I/ATLAS has now made its closest approach to the sun and Earth and is now heading back out toward the outer solar system. On ...

Now passing through the constellation Leo, the interstellar object sits at a distance so immense that the light from it takes about 15 minutes to reach us.

Their strange movements don’t match the predictions of current solar system models. This odd behavior has sparked new theories, including the bold idea that a yet-undiscovered Earth-sized planet may ...

CAPE CANAVERAL, Fla. (AP) — NASA has discovered an interstellar comet that’s wandered into our backyard. The space agency spotted the quick-moving object with the Atlas telescope in Chile earlier this ...