For the first time, astronomers have witnessed the early stages of planet formation around a distant young star, HOPS-315, ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Our solar system has been around for 4.6 billion years. While that sounds like a long time, it's ...

The universe is unimaginably vast. Even the nearest stars are incredibly far away. Our galaxy is just one of billions. Traveling vast cosmic distances requires immense energy. Key takeaways sponsored ...

The Copernican Principle, named in honor of Nicolaus Copernicus (who proposed the heliocentric model of the universe), states ...

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. The size of the solar system is defined by the volume ...

Imagining what it would be like to visit another planet has been a staple of science fiction for decades. Whether it's here in the Solar System or out somewhere else in the universe, other worlds tend ...

The coldest recorded temperature on Earth is minus 128.6 degrees Fahrenheit, but many other planets are regularly colder than this. Temperatures on Mars, for example, range from 70 degrees all the way ...

Behold the sun and all of it's glory. Learn all things about the sun ranging from its beginning to its death. Also learn about how stars work in general and MUCH MUCH more. Visit the planet most like ...

The official number of exoplanets—planets outside our solar system—tracked by NASA has reached 6,000. Confirmed planets are added to the count on a rolling basis by scientists from around the world, ...