The question of whether the cosmos goes on forever is no longer just a late night thought experiment, it is a live research ...

This NASA/ESA Hubble Space Telescope image features the spiral galaxy Messier 77, also known as the Squid Galaxy. Everything on Earth, in our solar system, our galaxy, and beyond is contained within ...

When you bake a loaf of bread or a batch of muffins, you put the dough into a pan. As the dough bakes in the oven, it expands into the baking pan. Any chocolate chips or blueberries in the muffin ...

For centuries, Europeans thought that eternal daylight saturated the cosmos. The shift to a dark universe has had a profound ...

Many astronomers have wondered where the center of the universe is. If the Big Bang created the entire observable universe, then it stands to reason that the event had a point of origin. As it turns ...

Is the universe infinite, Aristotle asked in 350 BCE, “or is this an impossibility? The decision … is … all-important to our search for the truth.” The Greek ...

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This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. About a century ago, scientists were struggling to ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to [email protected]. What is the universe expanding into if it’s ...