A famous sign that has long been attributed to aliens may finally have a scientific explanation.
A recently published study argues that the "Wow!" signal from 1977 was likely triggered by two comets which had not been detected at the time.
The original incident occurred nearly 40 years ago at Ohio State University when the school's telescope sensed energy from space that was unusually strong; its wavelength was also considered a favorable one for life in outer space.
After astronomer Jerry Ehman saw the paper readout, he wrote in red ink "Wow!" next to the numbers which is how the name came about.
While the signal has been investigated over the years, no other credible theories have been put forth until the recent research.
According to NBC News, "Antonio Paris at St. Petersburg College in Florida has found that two comets, yet to be identified in 1977, were in just the right position, and due to their halo of hydrogen might have given off energy in the right wavelength."
While skeptics have voiced their doubts, additional observations are needed to confirm or disprove the assertion.
More from AOL.com:
How to hide winter weight gain
Americans willing to give up privacy online for convenience
Ways to save for your 2016 travel plans
- Don’t Borrow From the Bank – Borrow From Yourself
- Want Cash Out of Your Home? Here Are Your Best Options
- Turn Your Home Equity Into Cash Before a Recession
- Latest mortgage news: Rates inch down again, stay below 7%
- Latest HELOC news: Rates flirt with 8%
- 5 ways a personal loan could help you save money
- Dad greets son at airport with traditional Māori Haka: ‘Not a dry e…
- Mom parodies different phases of being a parent in hilariously relatab…
- Photographer’s ‘faceless’ Christmas photos can help protect little one…
- Today's Top Mortgage Rates in Your Area
- Reach Your Financial Goals and Help Your Money Grow with these Top Inv…
- Drowning in Credit Card Debt? Consider a Debt Consolidation Loan!
- The True Story Behind "The Blind Side"
- These Are All The Hidden Hacks Of Costco
- The Largest Military Planes In The World Are A Sight To Behold