# In 1977, NASA launched two probes designed to last five years. Voyager 1 and 2 are now the only human-made objects in interstellar space, still operating, still transmitting, funded by a team of engineers some of whom have worked on the mission for nearly

> **Newsylist Open Intelligence Dossier** · First detected: 2026-07-21 03:29 UTC · Category: Science · Sources: 5 · Current Velocity: 2.8

## Executive Summary
Launched in 1977 for a five-year mission, NASA's Voyager 1 and 2 remain the only human-made objects in interstellar space and are still transmitting data.

## Intelligence Brief
NASA's Voyager 1 and 2 probes continue to operate and transmit data from interstellar space decades after their 1977 launch. Originally designed to last five years, these probes are now the only human-made objects in this region of space.


Coverage from Space Daily, Make Tech Easier, and 19FortyFive emphasizes the technical challenges of the mission. Voyager 1 is transmitting from over 25 billion kilometers (15 billion miles) away using less than 250 watts of decaying plutonium.


The signal, which takes over 23 hours to reach Earth, is carried by a radio described as no stronger than a refrigerator lightbulb. Attention is now on Voyager 1's trajectory as it moves toward a distance of one light-day from Earth, according to it-online.co.za.

## Verified Facts & Key Claims
### How long were the Voyager probes originally designed to last?
The probes were designed to last five years.

### What powers Voyager 1?
It is powered by less than 250 watts of decaying plutonium.

### How long does it take for Voyager 1's signal to reach Earth?
The signal now takes over 23 hours to reach Earth.

## Key People, Organizations & Locations
Earth, NASA, Voyager, NASA's Voyager, Radio Transmitter Is Weaker Than, Refrigerator Lightbulb It Still Reaches Earth From, Billion Miles Away

## Multi-Source Evidence Table
| Source Outlet | Headline | Published (UTC) | Verification URL |
|---|---|---|---|
| ScienceBlog.com | The engineers who built Voyager knew they would almost certainly be dead before it left the solar system, and they built it anyway, a gift from people who would never see where their work would go | 2026-07-20 11:30 | [Source Link](https://news.google.com/rss/articles/CBMidkFVX3lxTE5FRjhtblc5MExDV19ld3k0clBjSk0zRzNJZkh5UWMxeVBKVFVrcXVYNXo4ZEJHRlo4cDMxd1FZYkJyR2NSRTczWTRjQzE3TnlMemlHSzU4QTV1LXhLVzdKV3BlRGM1ZEFQWjMxbjloMnc0NXhvcEE?oc=5) |
| Make Tech Easier | Voyager 1 is still transmitting from more than 25 billion kilometres away, powered by less than 250 watts of decaying plutonium — a signal that now takes over 23 hours to reach Earth, carried by a radio no stronger than a refrigerator lightbulb | 2026-07-20 11:30 | [Source Link](https://news.google.com/rss/articles/CBMivAJBVV95cUxQY3VWc2tUUVVoNEszTWxqUmZIVGxxZEZPTkxIMXBHRXBqOGNPa1FhSERtSUVjelN0TTdSUjI1UlpQSmF6czAwWUhrZUxJajJDaHZUNzJUbmd4LWFBckQxUmthN3MxSWVjcDhuR0FBMlBYajFWdUU3UUFmdER5R01jbW5nTmh6WEFxcFgwRmRnb1o4Uk5ENlMtSkdsNklXdnBoazV5aTA3T3NwSXRJekdhU1ZPMm43cmhNSWpRQ19aZVdIaWpiaTljZ290dzQweUtwY0I2Vk5iOUdsbDRhdldMbzlBaXA3TFhlVkprM3RCMDdnZEtYUlNTVVdEUEVxSFYxSXM5Tno0WnR2QlN4Y0pidlp3eGNoMW1LdmJXX0ZxNVJfNkxjVW90VVkxTEJremd2cll1TnhiSHZYX0I5?oc=5) |
| 19FortyFive | NASA's Voyager 1 Radio Transmitter Is Weaker Than a Refrigerator Lightbulb. It Still Reaches Earth From 15 Billion Miles Away | 2026-07-20 11:30 | [Source Link](https://news.google.com/rss/articles/CBMi8gFBVV95cUxNZGtscUtjZGVzVXBUbkZNU3NtMHRFYlJtWFJBQmFHcTFDSnlzSnZkczRxbmRTcUJIWloyNmdGS3ZlOUoxOUcxYnducXdfYUVzeXFVSl9YcDVLNWdBOU9KUmFJLXZIb09TcXhlREJ6azlET3VKa2NBR0ptRTU5UjZzVm5adUtoZEVYQTJFcGhpcTBZZzRmaFFCRzFEZjJHQUNDUXZ5ZUt4RDRPUjBUaE9rRGNkNlJhWUhEQVhHMnBXM0xac0tzeTI1T09STWhnNUFReGRlbEp1LTk3N3I1ZEl1dWMxVkE2Sy15X0FDS2thdVR0Zw?oc=5) |
| it-online.co.za | Voyager 1 on track to reach one light-day from Earth | 2026-07-20 11:30 | [Source Link](https://news.google.com/rss/articles/CBMikgFBVV95cUxNN2RWMFJKOVBIWlZmSUtFZ2pKRnYyc2VaX01IQ3FtTmhxVDJIVGQtdzBkQUlhOHVIcDFGZnlfSnh5X29NVVN3cHJwR3MtRFdLYVlLNGEyN25ad1JudV9NREpPNmhwN2FPenhhT1d3SE1Zd1dUOUhwZ0h3b1RQSldpNUZaMVdUbEYxd1NvMHVWM3dKQQ?oc=5) |
| Space Daily | In 1977, NASA launched two probes designed to last five years. Voyager 1 and 2 are now the only human-made objects in interstellar space, still operating, still transmitting, funded by a team of engineers some of whom have worked on the mission for nearly | 2026-07-20 11:30 | [Source Link](https://news.google.com/rss/articles/CBMifkFVX3lxTE9MM2dybVpndFZMLUJYWGhQRVhQOWk3Y01FZ3BUTEpLbjVkck5RSl90aDByZVhFMF9NSHpDWXRyXzU1NnhRSjdMNkYteWNiZXRjcV8wM3drVGg5amp1aVlqSUV1b1ROaDVIX1pWelRGWmxxbTgzRVFNT2pwNFBnQQ?oc=5) |

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