Although no one knows for sure, the comets may reach halfway to Alpha Centauri, the closest star system at 4.3 light-years away. In that case, despite its swift speed, Voyager 1 is like a ...

Since its launch in 1977, NASA's Voyager 1 spacecraft has traveled over 15 billion miles into deep space. That's a long way—but it's not even 1% of the distance to Alpha Centauri, the nearest ...

The paper, on the other hand, looks at probe sizes of up to about 1,000 kg—about the size of the Voyager ... around .1 AU of its journey, which totals more than 277,000 AU to Alpha Centauri.

Though it appears as a single bright speck in the sky, Alpha Centauri is actually a triple star system, with several suspected exoplanets, including a super-Earth called Proxima Centauri b ...

Researchers estimate over a million interstellar objects from Alpha Centauri may already be lurking in the icy shell surrounding our solar system. Stars don’t hoard their material—Gregg and ...