A new study examines how much material from the closest star system to Earth will end up in orbit around the Sun, and how ...

Oumuamua and Comet Borisov in 2017 and 2019, respectively, created a surge of interest. What were they? Where did they come ...

"Our Sun (Sol) is marked by a black hexagon, and its orbital path is indicated by a grey solid line (top row only). Alpha Centauri's location and path are shown by a yellow star and a solid blue line ...

"The lightsail will travel faster than any previous spacecraft, with potential to eventually open interstellar distances to ...

An open letter to any friendly aliens who are considering making first contact with Earth soon: If I've learned anything from ...

There are more planets than there are stars, and at least a quarter are Earth-size planets in their ... star 10 billion times brighter. To reach Alpha Centauri, our nearest neighboring star ...

are to be accelerated by laser beams that target them from the Earth's surface. It would then take them just 20 years to travel to the Alpha Centauri star system four light years away, but they ...

In a groundbreaking new study, researchers have unveiled the existence of a “cosmic highway”—a pathway of interstellar ...

Due to its southerly position, it's not accessible to view from northern latitudes like ... the Earth's size was first measured with its help as a navigational tool. Alpha Centauri is a triple ...

These popular astronomy questions, answered by Astronomy magazine, will help you better understand our universe - and share ...

The idea of traveling through interstellar space using spacecraft propelled by ultrathin sails may sound like the stuff of ... our nearest star system, Alpha Centauri. Caltech is leading the ...