
WOW? NOT NOW
The famous “Wow!” signal detected in 1977 is often cited as evidence for alien life. But in January, a Florida academic determined that the 72-second emission likely came from two comets.
SPACE HEATER
In 2015, Australian astronomers figured out that the baffling radio signals they had detected during daytime for the past 17 years were caused not by E.T. but by a microwave in their observatory.
SIGNAL FAILURE
Scientists in Arecibo, Puerto Rico, were disappointed in 1997 when a signal seemingly from a constellation 22 light-years away turned out to be from a satellite a million miles from Earth.
More Must-Reads from TIME
- Inside Elon Musk’s War on Washington
- Introducing the 2025 Closers
- Colman Domingo Leads With Radical Love
- Why, Exactly, Is Alcohol So Bad for You?
- The Motivational Trick That Makes You Exercise Harder
- 11 New Books to Read in February
- How to Get Better at Doing Things Alone
- Column: Trump’s Trans Military Ban Betrays Our Troops
Write to Kate Samuelson at kate.samuelson@time.com