From our tiny blue planet to the edge of the observable universe, this video takes you on a breathtaking journey of scale. We ...

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 ...

There have been many studies done to better understand how the heliosphere interacts with other elements and what its ...

Federal funding is about to run out for 19 active space missions studying Earth's climate, exploring the Solar System, and ...

Astronomers discovered 3I/ATLAS earlier this week, and recently confirmed that it is an interstellar object. © K Ly/Deep Random Survey Update: July 3, 09:24 a.m. ET ...

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 ...

If you could go back 4.6 billion years, you would see a time before our solar system even existed. But space wouldn’t be empty—you would encounter a cloud of gas and dust in place of our sun and the ...

Black holes are massive, mostly invisible and so powerful not even light can escape them. So what would happen if one entered our solar system? It depends on a lot of factors, including the size and ...