Elon Musk, under the username "Kekius Maximus," has joined William Shatner in advocating for Pluto's reclassification as a planet. Shatner playfully s ...

The small world was found during a search for the hypothetical Planet Nine, and astronomers say the next time it will reach ...

Screening can now determine their risk for an ever-growing list of conditions — including ones we can’t do much about.

The newly discovered object, named 2017 OF201, has a 25,000-year orbit and is believed to be a large contender for dwarf ...

Almost 20 years after Pluto was infamously downgraded from its status as a planet, scientists now believe they have ...

There’s a new frozen oddball orbiting the Sun, and it’s not your average space rock. It’s a planet—a minor one, to be ...

The International Astronomical Union, which reclassified Pluto as a dwarf planet in 2006, is the arbiter of such classifications. Andrea has written about NASA and the commercial space sector ...

Solar flares are intense bursts of radiation coming from the sun. They are the most powerful explosions in our solar system, according to NASA. The biggest solar flares are labeled as X-class flares.