For the past five hundred years, we’ve been looking out at the universe and assuming that we, with our little planet and our little solar system, were nothing special. And then we sent out a probe to ...

CHICAGO (WLS) -- "Understanding the Universe" is a new ABC 7 Eyewitness News streaming show series. Adler Planetarium Astrophysicist Michael Zevin stopped by the studio to help us better understand ...

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 ...

How special is our solar system? Is our sun unique? What about the number, arrangement, and composition of our planets – are they weird, or what astronomers expect to see? Is our planetary ...

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 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 ...