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 universe is generally referred to as infinite, unknown, and limitless. With over 2 trillion galaxies and millions of stars and planets, the universe is so enormous that it stretches the boundaries ...

The surface of Earth is finite. We can measure it. If it was expanding, then its size would grow with time. And once again, ...

The Universe is big, as Douglas Adams would say. The most distant light we can see is the cosmic microwave background (CMB), which has taken more than 13 billion years to reach us. This marks the edge ...

Will the universe keep existing forever? An astrophysicist explains how scientists aren’t entirely sure, but they can make ...

As evidenced by the diagrams that make up the Tree of Knowledge System, I think it is valuable that we teach individuals broad frames to think about the Universe and our place in it. That was why I ...

New observations suggest our estimates of the cosmic dipole effect are actually in line with the large scale structure of the universe. When you purchase through links on our site, we may earn an ...

Mikhail Ivanov, Oliver Philcox, and Marko Simonović won the New Horizons Award for their work on large scale structures — the strands and filaments of our universe which contain buried clues to its ...

No one knows what kicked off the Big Bang that eventually allowed the stars to begin forming. Adolf Schaller for STScI, CC BY How can a Big Bang have been the start of the universe, since intense ...

In the beginning, the Universe was created. This has made a lot of people very angry and been widely regarded as a bad move.—Douglas Adams, The Hitchhiker's Guide to the Galaxy Humans have many ...