The farthest thing we’ve detected in space isn’t a star or galaxy, it’s the Cosmic Microwave Background, or CMB. This is essentially the afterglow of the Big Bang, the universe’s birth, captured in the microwave band of light. We’re looking at light that embarked on its journey just 380,000 years after the universe began. Through measuring its redshift, scientists estimate the CMB is currently about 46.5 billion light-years away from us in every direction. This impossible-to-comprehend distance indicates the universe’s diameter stretches 93 billion light-years. The discovery of the CMB in 1965 was a pivotal moment, offering strong support for the Big Bang model. For a deeper exploration, take the 6-minute deep dive: The Expanding Universe Explained.
What is the farthest object in space?
- < 1 minute read
- By Mike Prestwood
Follow Us!
Share :
The answer comes from a relic originating just 380,000 years post-Big Bang and stretches across 93 billion light-years.
Share :
Comments
Join the Conversation! Currently logged out.
Sign in, or register, to leave a comment.
“To share your thoughts and become a part of our kind-hearted community engaged in rational and tolerant discussion, please sign in or register. Your voice matters to us, and together, we can create a space of meaningful dialogue.” -Mike Prestwood
WEEKLY
1-Minute Hot Topics!
The hive mind is buzzing. Join our weekly conversations. New questions posted Sundays at 3PM.
Natural Philosophy
Critical Thinking
