For years, astronomers have toyed with the idea that the Sun hides an extra planet so distant and dim that even the best ...

ALMA observations of carbon monoxide emission from 15 protoplanetary disks reveal a stunning variety of gas structures, ...

Reference Explore the eight (or nine) planets of the solar system in order from nearest to the sun and discover the many wonders of our solar system along the way. An object seen to have moved in the ...

There’s something about a steaming bowl of matzo ball soup that feels like a warm hug from the universe, and at Hershel’s East Side Deli in Philadelphia, Pennsylvania, that hug comes with a side of ...

A 9th planet in our solar system might be found — and no, it’s not Pluto - Is there another planet out there? Researchers say ...

At a frigid -125 degrees Fahrenheit (-87 degrees Celsius), WD 1856+534 b is the coldest planet ever directly observed, ...

Pointed away from Earth about 404 miles overhead, the orbital observatory will circle the planet from north to south about 14 ...

Researchers have found a candidate for the hypothetical Planet Nine, which could be an undiscovered giant planet way out in our solar system. However, as with all ninth planet research, the new ...

Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, ...

In a situation similar to Dostoyevsky’s *Crime and Punishment*, a group of traders quickly made billions from a toy company's ...

During his life, Willy Ley predicted the dawn of the Space Age with remarkable accuracy. How did his remains end up forgotten in a co-op on the Upper West Side?

And these observations are giving us hints about what's going on? A new "Tatooine-like" planet outside the solar system may orbit two failed stars, scientists reported Wednesday.Related video ...