Astronomers are developing plans and technology for increasingly powerful space telescopes. For instance, NASA is working on its proposed Habitable Worlds Observatory, which would take ultrasharp ...

Back in October 2021 the Sun had a bit of a tantrum, letting out an epic X-class flare the likes of which had never been seen ...

The action begins right at sunset — after which there will only be a 30-minute window in which all seven planets can be seen in alignment above the horizon. "If you look out west after sunset ...

A new astronomical study suggests that Earth could one day be ejected from the solar system, not by the aging of the Sun, but ...

Warmer climates than Earth’s could accelerate life’s development, potentially increasing the number of planets with more ...

Scientists have long believed that rocky planets like Earth and Mars formed their cores through a process that required ...

And yes, they'll be in a line. But because planets always appear in a line from our Earth-bound vantage, the alignment isn't anything out of the norm. What's less common, according to astronomers ...

While this parade of planets will appear to be huddled together in one small part of the sky, the distant worlds are of course spread out across a vast expanse of space, separated from each other ...

If two planets get too close to each other, the interaction can cause one (usually the less massive of the two) to gain a lot of orbital energy, causing it to be flung out of the system.

"Uranus and Neptune, two very distant ice giant planets out in our solar system, are also there in the sky," Dyches said. "But they are very faint." MORE: This is how close NASA's Parker Solar ...

Only eight planets call our solar system home. Or there might still be nine if some astronomers are correct about an as-yet undiscovered large body out past Neptune. On the other hand, if you’re ...

Those who are closest to me know that I love going out with my phone and shooting pics of the night sky. When it comes to stars and planets, all I get are dots. They are so very far away ...