Internet users who fancy sending a message to the most distant man-made object in the universe have one day left to make a submission.
NASA is celebrating the 40th anniversary of the Voyager probe by allowing one 60-character message to be beamed out to it.
Submissions are given over Twitter, Instagram or Facebook using the hashtag #MessageToVoyager. Eventually, the public will be able to vote on which entry will win out and get sent to the probe.
The internet has, of course, been pulling out its wittiest and most original suggestions.
The unmanned spacecraft was launched on September 15, 1977 and still beams back mission data even after travelling nearly 12 billion miles away from Earth.
Aboard the probe is a golden record containing sounds and images selected to “portray the diversity of life and culture on Earth” to any extraterrestrials that happen to intercept it.
Voyager 1 crossed over into interstellar space on August 25, 2012 by moving beyond the heliosphere – the area of space in the galaxy dominated by our sun.
It is expected to run until the mid-2020s when its power generator runs out.
“I believe that few missions can ever match the achievements of the Voyager spacecraft during their four decades of exploration,” said Thomas Zurbuchen, associate administrator for NASA’s Science Mission Directorate (SMD) at NASA Headquarters.
“They have educated us to the unknown wonders of the universe and truly inspired humanity to continue to explore our solar system and beyond.”