Big Bang theory is the leading explanation for how our universe began. According to the theory, the entire universe began as a tiny singularity that went through an explosive expansion 13.8 billion years ago, gradually expanding into the cosmos we see today. Today, astronomers can detect an "echo" from the Big Bang in the cosmic microwave background, a phenomenon that can be detected with radio telescopes. Big Bang Theory is also the name of a popular CBS sitcom about scientists, where several real-life scientists and astronauts have appeared.
Our baby universe comes under scrutiny in the latest episode of "Ask A Spaceman", which airs on Facebook Watch today (Aug. 22).
The astrophysicist is in: In the new Facebook Watch series "Ask a Spaceman," pro explainer (and Space.com columnist) Paul Sutter answers your questions about the strangest corners of the universe.
A new technique that analyzes clashing observations may help solve the mystery behind the expansion of the universe.
A newfound quasar is blasting out the brightest radio emissions ever observed in the early universe, new research reports.
The glory of the iconic Nobel Prize accolade is the dream of many scientists. Author and astrophysicist Brian Keating spoke about the ups and downs along his journey, and lessons learned.
Diamond dust is responsible for a mysterious glow emanating from certain regions of the Milky Way galaxy, a new study reports.
Does dark matter have an electric charge? No one's really wondered before, but researchers are exploring the possibility that some dark matter particles have a small electrical charge.
Stars in a galaxy 13.28 billion light-years away formed just 250 million years after the Big Bang, according to new observations.
At 13.8 billion years ago, our entire observable universe was the size of a peach and had a temperature of over a trillion degrees.
Dark matter may actually be a scattering of primordial black holes that arose soon after the Big Bang as a result of instabilities in the Higgs field, according to a new theory.