This is the provocative question at the heart of an emerging astronomical debate, wherein the discovery of rogue planets-worlds free-floating in the galaxy-appears to challenge definitions of ...

If you missed May’s Northern Lights, another celestial event will occur next week called the “planetary parade,” where several planets will appear to be in a straight line from Earth, though only two ...

In an unprecedented celestial event, NASA's Hubble Space Telescope (HST) captured the dramatic aftermath of colliding space ...

Sometimes planetary physics is like being in a snowball fight. Most people, if handed an already-formed snowball, can use their experience and the feel of the ball to guess what kind of snow it is ...

Healthy, sustainable school meals could cut undernourishment, reduce diet-related deaths and significantly lower ...

The last five-planet alignment occurred in June 2022, marking the first time in 40 years since the last celestial spectacle took place Skyler Caruso is a Writer and Reporter of PEOPLE Digital ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Everyone’s talking about the “rare planetary alignment.” Are ...

The article describes planetary nebulae, the glowing shells of gas expelled by dying stars, their formation resulting from the exhaustion of a star's hydrogen fuel and subsequent gravitational ...