WASP-121b, also known as Tylos, is a giant, ultra-hot, gaseous planet located 858 light years from Earth. It's hot because it ...

"Astronomers may have just discovered the third interstellar object passing through the Solar System!" the agency's ...

Our solar system is a pretty wild place, full of amazing stuff. From the giant Sun to the tiny rocks floating around, there’s ...

Sedna will make its closest approach to the Sun in 2076, giving us a rare opportunity to visit the planetoid before it drifts ...

Astronomers have discovered the strange dance that leads to the creation of rare "double hot Jupiters" in binary star systems ...

Mercury reaches its greatest elongation, 26 degrees east of the sun on July 4. From latitude 40 degrees north, the ...

Venus moves east as July progresses and stands 3° due north of Aldebaran on the 14th, after skirting the northern regions of ...

Something incredibly strange is happening in our cosmic neighborhood: a mysterious gravitational disturbance is hurtling Jupiter toward the Sun. If it sounds like science fiction, that’s because ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

Our planet is tipped over by about 23.5 degrees relative to the plane of its orbit around the sun. This changes the sun’s actual position—what we call the “true sun”—in the sky and ...

Yale astronomers may have discovered the origin story for one of the universe's most dazzling phenomena—the double hot ...