时间：2025-06-14 22:37:25 来源：神安气集网

At 15.4 billion miles away from Earth in interstellar space,关键字3 Voyager 1won't last much longer. 

In fact, NASA's flight engineers may have thought the 47-year-old mission had finally kicked the bucket when the uncrewed spacecraft recently went quiet. The probe had shut off its main radio transmitter for communicating with mission control. 

Voyager's problem began on Oct. 16, when flight controllers sent the robotic explorer a somewhat routine command to turn on a heater. Two days later, when NASA expected to receive a response from the spacecraft, the team learned something tripped Voyager's fault protection system, which turned off its X-band transmitter. By Oct. 19, communication had altogether stopped. 

The flight team was not optimistic. 

However, Voyager 1 was equipped with a backup that relies on a different, albeit significantly fainter, frequency. No one knew if the second radio transmitter could still work, given the aging spacecraft's extreme distance. Days later, engineers with the Deep Space Network, a system of three enormous radio dish arrays on Earth, found the signal whispering back over the S-band transmitter. The device hadn't been used since 1981, according to NASA. 

"The team is now working to gather information that will help them figure out what happened and return Voyager 1 to normal operations," NASA said in a recent mission update. 

SEE ALSO: NASA spacecraft has roamed billions of miles — but hasn't reached the 'edge'

This Tweet is currently unavailable. It might be loading or has been removed.

Both Voyager 1and its twin, Voyager 2, have been bopping along for nearly a half-century, far beyond their original life expectancy. Launched in 1977, the pair was originally intended to study Jupiter and Saturn, their moons, and Saturn's rings. For the two-planet journey, they were built to last just five years.

Mashable Light Speed Want more out-of-this world tech, space and science stories? Sign up for Mashable's weekly Light Speed newsletter. By clicking Sign Me Up, you confirm you are 16+ and agree to our Terms of Use and Privacy Policy. Thanks for signing up!

After their initial success, engineers doubled their objectives to include two more giant planets, Uranusand Neptune. Between the two spacecraft, they've explored four planets, 48 moons, and a host of planetary magnetic fields and rings.

In August 2012, Voyager 1 made history as it entered interstellar space, the region between stars, filled with material ejected by other stars that died millions of years ago. Voyager 1 and 2 are the only spacecraft ever to operate outside of the heliosphere, the region of space affected by the sun's constant flow of material.

Voyager 1 launched from Earth in 1977 and is the farthest human-made object in space. Credit: NASA / JPL-Caltech

Voyager 1 is speeding away from the solar system at over 38,000 mph and is the farthest human-made object from Earth. It is so far away that it takes 23 hours for a command to reach the spacecraft, and another 23 hours for mission control to hear back from it.

NASA has previously said the Voyagers generate about 4 fewer watts of power annually, limiting the number of systems the spacecraft can use. Flight controllers have occasionally turned off equipment to conserve power. The goal is to keep the two running beyond 2025, according to the agency.

---

Related Stories

---

• NASA spacecraft has roamed billions of miles — but hasn't reached the 'edge'
• NASA's getting screwy messages from interstellar space
• The best telescopes for gazing at stars and solar eclipses in 2024
• NASA refuses to let go of its aging interstellar explorer
• How a NASA nuclear rocket engine could unleash the solar system

It's not clear yet why Voyager 1's fault protection system shut off the main radio transmitter. When onboard issues occur, such as the spacecraft overdrawing its power supply, the system will automatically turn less-critical equipment off so that it can continue flying. Based on data from Voyager 1, the spacecraft should have had enough power to flip on the heater without incident. 

Voyager 1 is speeding away from the solar system at over 38,000 mph and is the farthest human-made object from Earth. Credit: NASA / JPL-Caltech graphic

Interstellar space is a high-radiation environment that nothing human-made has ever flown in before. That means the only thing the teams running the old probes can count on are surprises. 

Last month the team troubleshot a thruster problem on Voyager 1. At this point in the mission, nothing is easy or guaranteed, said Voyager project manager Suzanne Dodd in a statement. 

"All the decisions we will have to make going forward are going to require a lot more analysis and caution than they once did," she said.

---

Featured Video For You

---

10 mind-blowing discoveries from the James Webb Telescope

---

上一篇：Hai xe taxi 'kèn cựa', chèn đường nhau trên phố như phim hành động
下一篇：改善垃圾分类环境 引领“智”慧新生活

• ·Người dân phố cổ Hội An hối hả dọn bùn đất sau trận lụt trái mùa
• ·一图读懂丨什么是猴痘，如何做好防控？
• ·一图读懂丨什么是猴痘，如何做好防控？
• ·不想上班只想出去玩的心情说说 不想上班只想出去看世界的文案
• ·Apple plans a big rebrand of iOS and macOS, report says
• ·王石最新发声！万科晚间突发公告：“售股”回血！
• ·抖音直播间里游戏链接怎么放 抖音直播间里游戏链接设置推广赚钱攻略
• ·2025年天津全民健身健康运动会匹克球公开赛圆满收官
• ·《烟雨楼》(袁仪方&陈魁演唱)的文本歌词及LRC歌词
• ·抖音直播间里游戏链接怎么放 抖音直播间里游戏链接设置推广赚钱攻略
• ·教你如何对无盘网吧的客户机进行缓存设置
• ·Scientists film footage of alien, shimmering creature in the remote ocean
• ·2025精英童模超级联赛非遗宣传大使黄姚婉尔倾情演唱歌曲《太阳花开》
• ·(经典)社会实践调查报告
• ·《傀儡团队》PC版下载 Steam正版分流下载
• ·eBay峰会在福州成功举办，助力"闽品出海"开拓欧洲蓝海