NASA wants you (yes, you) to help celebrate the 40th anniversary of the Voyager mission. 
 
 In honor of four decades of Voyager 1 — humankind's farthest-flung spacecraft — NASA is inviting people everywhere to share an uplifting message for the spacecraft using the hashtag #MessageToVoyager. 
 
 NASA will even beam one lucky person's #MessageToVoyager into space, according to a press release. The messages can be sent through social media, including Twitter and Facebook. 
 
 The effort is inspired by "messages of goodwill" from Voyager's Golden Record, a disk which contains sounds and images of life on Earth which was carried aboard Voyager 1 and Voyager 2 in 1977 on their tours of the solar system's planets. 
 
 In order to submit messages for consideration, people must use the hashtag #MessageToVoyager by 11:59 PM PDT on August 15. 
 
 It would be a pretty kind gesture for a spacecraft that's all alone up there. 
 
 Submissions will be judged by NASA, the Voyager team, and the Jet Propulsion Laboratory, before the public has the ability to select a final, winning message through an online poll. 
 
 That winning message will be beamed into space on Sept. 5 — the anniversary of of Voyager 1's launch in 1977. But that's just the day the message will be launched. It won't reach the vicinity of Voyager 1 until the next day. 
 
 Voyager 1 was the very first spacecraft to go into interstellar space, according to NASA, and Voyager is the longest continual space mission to date. Voyager 2 launched to space on August 20, 1977.
– Your words could reach out of our solar system—no gigantic megaphone necessary. NASA is hosting a contest that will see a message from one lucky Earthling sent to Voyager 1, which is hurtling through interstellar space. Entrants are invited to submit an "uplifting" message of 60 characters or less on social media using #MessageToVoyager. Scientists will then pick their 10 favorite messages and let the public vote for one to be beamed to Voyager 1 on Sept. 5, the 40th anniversary of the probe's launch, reports Mashable. Messages will be accepted until Tuesday. Voting begins Aug. 23. (Celebrate the anniversary with a copy of the Voyager golden record.)