时间:2025-07-19 06:45:32 来源:网络整理编辑:焦點
Voyager 2, at 11 billion miles from Earth, has entered the stars. Monday morning NASA announced that
Voyager 2, at 11 billion miles from Earth, has entered the stars.
Monday morning NASA announced that the legendary exploration spacecraft had left a protective bubble produced by the sun's wind and energy, called the heliosphere, and is now hurtling through interstellar space.
Voyager 2 is the second spacecraft to ever reach the outer limits of the solar system and enter into the interstellar wilderness. Voyager 2's counterpart, Voyager 1, previously entered the stars in 2012.
"This is what we've all been waiting for," Suzanne Dodd, NASA's Voyager project manager, said in a statement. "Now we’re looking forward to what we’ll be able to learn from having both probes outside the heliopause.”
Tweet may have been deleted
Technically, however, Voyager 2 is still in the distant realms of the solar system. There are large icy objects out here, collectively known as the Oort Cloud, that are still under the gravitational influence of the sun.
Both Voyager crafts, then, aren't expected to leave the solar system anytime soon. NASA suspects it will take some 30,000 years for the Voyagers to travel beyond the Oort Cloud, and enter farther into uncharted territory.
Out beyond the heliopause, however, the Voyager craft can give NASA scientists a better idea of what it's like at the beginnings of interstellar space, and how the sun's particles and energy, or solar wind, interact with the constant flow of particles from deep, interstellar space.
"To have the Voyagers sending back information about the edge of the Sun’s influence gives us an unprecedented glimpse of truly uncharted territory,” Nicola Fox, director of the Heliophysics Division at NASA Headquarters, said in a statement.
A specialized instrument aboard Voyager 2, the Plasma Science Experiment, played an important role in confirming that Voyager 2 had left the protective heliosphere. The instrument observed a "deep decline" in solar particles after Nov. 5, 2018, confirming the craft had entered the interstellar realm.
Both Voyagers were intended to explore the solar system for five years, but 41 years later, are still alive and sending messages back to Earth. The spacecraft are powered by slowly-decaying radioactive material, so they're not reliant upon sunlight to stay online.
The spacecraft both carry records coated in gold, with instructions of how to play 90 minutes of human-made music, containing the likes of Bach, The Najavo, and the scintillating rock and roll of Chuck Berry -- should any intelligent life ever come across either of the ancient craft in the vastness of interstellar space.
Richard Branson 'thought he was going to die' in bike accident2025-07-19 05:51
巴黎已通知波切蒂諾今夏下課 新帥難產齊祖拒接手2025-07-19 05:46
官方:曼城1850萬歐引進新阿圭羅 回租河床至夏天2025-07-19 05:27
範誌毅:國足會善始善終完成12強賽 接下來應該徹底洗牌2025-07-19 05:21
Balloon fanatic Tim Kaine is also, of course, very good at harmonica2025-07-19 05:12
範誌毅 :先從小環境入手做改變 中國足球才能回正軌2025-07-19 05:11
艾克森送春節祝福:祝球迷朋友們鴻福齊天萬事如意2025-07-19 04:57
全力爭勝!國足對陣越南大概率推出攻擊型戰陣2025-07-19 04:37
5 people Tim Cook calls for advice on running the biggest company in the world2025-07-19 04:14
冬窗TOP10:標王新巴蒂實至名歸 巴薩新援壓利物浦2025-07-19 04:02
Ivanka Trump's unpaid interns share cringeworthy financial advice2025-07-19 06:34
熱議中越之戰:居然丟的是頭球 !踢得就跟鬧著玩似的2025-07-19 06:03
周金輝:新賽季繼續遵循足球發展規律 腳踏實地提升運營能力2025-07-19 05:31
前國足翻譯:足協負責人應引咎辭職 徹底結束歸化2025-07-19 04:50
Metallica to seek and destroy your eardrums with new album this fall2025-07-19 04:49
登貝萊得逞 !成功賴在巴薩 紅藍解約or封殺二選一2025-07-19 04:46
十佳球 :迪馬利亞弧線球破門 韓國女足超級世界波2025-07-19 04:42
範誌毅神預言成真 :中國足球臉都不要了 再下去要輸越南了2025-07-19 04:30
Here's what 'Game of Thrones' actors get up to between takes2025-07-19 04:09
國足評分 :徐新最高戴偉浚第二 顏駿淩唯一不及格2025-07-19 04:03