Humanity has learned to fling machines to the edge of the solar system, but the stars remain stubbornly out of reach. The ...

The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...

NASA’s newly launched IMAP mission is set to tell us more about the boundary between our Solar System and interstellar space ...

3I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the galaxy. By Kenneth Chang For only the third time, astronomers have found ...

3I/ATLAS captured the world's attention last month as the comet raced past the Earth, but some believed that it could have ...