A newly discovered object speeding through our solar system could be something far stranger than a comet, possibly even alien ...

Stars are the fundamental building blocks of our universe. Most stars host planets, like our sun hosts our solar system, and ...

Mars gets lost as it sinks deep into the sun’s afterglow. Meanwhile, Jupiter climbs above the predawn eastern horizon to join brilliant Venus.

Our galaxy will make for a particularly splendid sight on the dark nights surrounding the new moon phase on July 24.

An ‘interstellar visitor’ spotted drifting into our solar system weeks ago is either a massive dirty snowball or an alien ...

The star L 98-59 is only 35 light years away, and several interesting exoplanets have already been found there. Now a ...

More recently, astronomers have proposed a theory for its volatile nature, which explains the star's seemingly erratic ...