Voyager 1 Reaches One Light-Day From Earth as November's Sky Delivers Leonids, a Planet Pairing and a Supermoon

WASHINGTON — November 2026 is shaping up to be one of the busiest skywatching months of the year, and its headline event is not in the sky at all, but far beyond it. According to NASA, the Voyager 1 spacecraft will become the first human-made object to reach one light-day from Earth on 18 November, a distance so great that even a radio signal travelling at the speed of light will need a full 24 hours to reach it. The same month offers two meteor showers, a close pairing of Mars and Jupiter before sunrise, and a full supermoon, according to NASA’s monthly “What’s Up” skywatching guide, published on 2 November and presented by Raquel Villanueva of NASA’s Jet Propulsion Laboratory.

Illustration: NASA’s Voyager 1 spacecraft drifting through interstellar space, far beyond the planets, as it approaches one light-day from Earth.

What Happened

NASA’s November guide lists six dates for skywatchers to remember. The Southern Taurids peaked around 5 November, and the Northern Taurids follow around 12 November. Both branches of the shower produce only about five meteors per hour under ideal conditions, according to NASA, but they are known for occasional bright fireballs, meteors bright enough to outshine the planets. The Taurids appear to radiate from Taurus, and NASA advises a dark location and about 30 minutes for eyes to adjust.

On the mornings of 15 and 16 November, Mars and Jupiter will appear just 1.2 degrees apart in the sky before sunrise, a little more than the width of two full Moons placed side by side. Look south-east before sunrise, NASA says, where Jupiter will be brighter and Mars will show its familiar reddish colour. The pair will fit together in one binocular field of view, and will be easily visible to the naked eye.

The month’s best-known meteor shower, the Leonids, reaches its peak in the early morning hours of 17 and 18 November, after the Moon has set. Under ideal conditions, NASA says the shower could produce around 15 meteors per hour, although most viewers will see fewer. BBC Sky at Night Magazine notes that the peak is expected to centre on about 01:00 UT on the morning of 18 November, and that the Moon will be below the horizon around midnight on the peak night, removing lunar glare from the best viewing hours. The Leonids are active from 6 to 30 November, according to NASA, and their dust comes from comet 55P/Tempel-Tuttle.

On 17 November, NASA is inviting the public to mark the Voyager 1 milestone through its “Shine Bright for Voyager’s Light-Day” activation, with details at nasa.gov/voyager. Participants flash lights in Morse code spelling “VGR”, Voyager’s call sign, in a small gesture aimed at a spacecraft that can no longer see us.

The month closes with a full supermoon on 24 November, the first of three consecutive supermoons running through December and January. NASA says the full Moon that night will be near the closest point of its slightly oval orbit, and skywatchers should look east around sunset to see it rise. The full Moon of November is traditionally known as the Beaver Moon, and timing data cited by JNP Travel puts the moment of full Moon at 14:53 UTC on 24 November, at a distance of about 360,800 kilometres from Earth.

The new Moon on 9 November (07:02 UTC, U.S. Naval Observatory data) opens the month’s darkest window for the Taurids and early Leonids.

Background

Voyager 1 was launched in 1977, taking advantage of a once-in-175-years alignment of Jupiter, Saturn, Uranus and Neptune that allowed a single spacecraft to visit several planets with the help of their gravity. Voyager 2 lifted off first, on 20 August 1977, and Voyager 1 followed on 5 September. Voyager 1 flew past Jupiter and Saturn, while its twin took the longer Grand Tour past all four giant planets, using six gravity assists between them, and remains the only spacecraft to have flown close by Uranus, in 1986, and Neptune, in 1989.

Voyager 1 crossed the heliopause, the boundary where the Sun’s solar wind meets the interstellar medium, in August 2012, becoming the first human-made object to enter interstellar space. Voyager 2 followed in November 2018. Both spacecraft still return scientific data from beyond the heliosphere, measuring magnetic fields, charged particles and the thin plasma between the stars.

Illustration: Leonid meteors streaking across a dark pre-dawn sky above a quiet rural landscape, with the constellation Leo high overhead.

NASA’s Night Sky Notes for November, by Kat Troche and published on 30 October, reports that the Deep Space Network’s Canberra antenna was tracking Voyager 1 at 25.80 billion kilometres, just over 16 billion miles, at the time of writing. On 18 November 2026, 49 years after its launch, the spacecraft will cross the one-light-day mark, 16.1 billion miles from the Sun, according to NASA. NASA’s separate light-day explainer gives the exact distance as 16,094,799,096 miles (25,902,068,356 kilometres), and the moment as 5:16:07 a.m. EST on Wednesday, 18 November. The journey from launch to that mark will have taken 49 years, two months and 13 days.

Voyager 1 is the farthest human-made object from Earth, and it carries the Golden Record, a disc of sounds and images from Earth intended as a message to any future finders.

The meteor showers have their own long histories. The Leonids are dust shed by comet 55P/Tempel-Tuttle, which orbits the Sun roughly every 33 years. They are among the fastest meteors known, entering Earth’s atmosphere at about 71 kilometres (44 miles) per second, according to NASA, which is why they can appear so bright despite their small size. They are famous for past meteor storms, notably in 1966, but forecasters expect only ordinary rates in 2026, with no storm or major outburst predicted.

The Taurids come from debris shed by comet 2P/Encke, which NASA identifies as the parent of the Taurid meteor stream. Encke is a small comet, its nucleus measuring about 4.8 kilometres across, and it has the shortest orbital period of any known comet, circling the Sun in just 3.3 years. Because its debris stream is unusually wide, Earth takes weeks to cross it, which is why the shower appears in two branches, southern and northern. The Taurids are slower than the Leonids, entering the atmosphere at about 65,000 miles per hour (104,607 kilometres per hour), according to NASA, and are known as the “Halloween fireballs” for the bright meteors they often produce around late October and early November.

Why It Matters

The one-light-day mark matters because it turns a distance into a delay. Once Voyager 1 passes it, a command sent from Earth will take a full day to arrive, and any reply will take another full day to come back, making even a simple exchange a two-day round trip. NASA’s Voyager project manager, Suzanne Dodd, has described the new routine in plain terms: send a message, then go home and wait two days.

Talking to the spacecraft is itself an achievement of engineering. NASA’s Deep Space Network, with giant dish antennas in California, Spain and Australia, normally sends commands to Voyager 1 at just 16 bits per second, while the spacecraft returns data at about 160 bits per second. Its transmitter puts out only about 22 watts, roughly the power of a household light bulb, according to NASA, yet that faint signal is still picked up across more than 25 billion kilometres. The spacecraft is travelling at nearly 38,000 miles per hour (about 61,000 kilometres per hour) relative to the Sun, according to NASA, and is heading in the general direction of the constellation Ophiuchus, the Serpent Bearer.

The milestone also puts the scale of space exploration in perspective. After almost half a century of travel, Voyager 1 has covered only about one-365th of a light-year. NASA says the spacecraft is heading towards a faint star called AC +79 3888, also known as Gliese 445, more than 17 light-years away, and will pass within about 1.7 light-years of it in roughly 40,000 years. Voyager 1 was never aimed at a star; the figure measures how slowly even the fastest human-made object crosses interstellar distances.

For skywatchers, November matters for a simpler reason: it is one of the few months when so many different kinds of observing fit into a few weeks. Meteor showers reward patience and dark skies, the Mars-Jupiter pairing rewards an early alarm, and the supermoon rewards anyone who simply steps outside at sunset. A supermoon can appear up to 14 percent larger and up to 30 percent brighter than the smallest full Moon of the year, according to NASA’s Jet Propulsion Laboratory, although the difference is easy to miss without a direct comparison. The huge Moon near the horizon is partly the Moon illusion, a trick of perception scientists still debate.

What Happens Next

Illustration: The full Beaver supermoon rising large and golden over a calm lake at sunset on 24 November 2026.

The dates to watch, in order, are the Northern Taurids around 12 November, the Mars-Jupiter pairing on the mornings of 15 and 16 November, the “Shine Bright” activation and the Leonid peak on 17 and 18 November, and the full supermoon on 24 November. None of the month’s events requires a telescope, NASA’s guide stresses: the naked eye, a dark location, warm clothing and about 30 minutes for eyes to adjust are enough. For the Leonids, watch after midnight until dawn, looking high in the sky rather than at the radiant in Leo, since meteors can appear anywhere overhead.

Voyager 1’s journey continues after 18 November, with no ceremony at the crossing itself — the spacecraft will simply keep travelling, and NASA’s engineers will keep listening. Its twin is about two billion miles closer, and Voyager 2 will not reach its own one-light-day mark until November 2035, according to NASA. Whether either is still transmitting then will depend on dwindling power supplies; NASA has said contact may continue into the mid-2030s if power allows.

Two more supermoons follow, in December and January, completing the run of three. The Leonids and Taurids will return next year. But the one-light-day crossing will happen only once. For a few weeks in November 2026, anyone who looks up at the right hour can watch the same sky that a 49-year-old spacecraft left behind — and know that a signal sent today would take until tomorrow to catch up with it.

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Frequently Asked Questions

What is a light-day?

A light-day is a distance, not a time: the distance light travels in 24 hours, which NASA gives as 16,094,799,096 miles (25,902,068,356 kilometres). Voyager 1 reaches that distance from Earth on 18 November 2026, meaning a radio signal will take 24 hours to reach it and 24 hours to return. It is about one-365th of a light-year.

When is the best time to see the Leonids in November 2026?

The best viewing is in the early morning hours of 17 and 18 November, after the Moon has set, with the peak expected to centre on about 01:00 UT on 18 November, according to BBC Sky at Night Magazine. NASA says up to around 15 meteors per hour are possible under ideal conditions, though most viewers will see fewer. Find a dark location, allow 30 minutes for your eyes to adjust, and watch with the naked eye.

What is a supermoon, and how big will November’s look?

A supermoon is a full Moon that occurs at or near perigee, the closest point of the Moon’s orbit around Earth. November’s full supermoon falls on 24 November and is the first of three consecutive supermoons. According to NASA’s Jet Propulsion Laboratory, a supermoon can appear up to 14 percent larger and up to 30 percent brighter than the smallest full Moon of the year.

Can I see Voyager 1 in the sky?

No. Voyager 1 is far too distant and too small to see, even with a telescope. NASA says it is travelling towards the constellation Ophiuchus, so skywatchers can look in that direction on 17 November for the “Shine Bright” activation — but they will see the direction, not the spacecraft.

Why are there two Taurid meteor showers?

The Southern and Northern Taurids are two branches of the same debris stream from comet 2P/Encke, which NASA identifies as the parent comet. Because Encke’s debris trail is unusually wide and spread out, Earth crosses different parts of it weeks apart, producing a southern peak around 5 November and a northern peak around 12 November. Both branches are known for slow, bright fireballs rather than high meteor counts.

Sources

• NASA Science, “What’s Up: November 2026 Skywatching Tips from NASA” (2 November 2026, updated 3 November 2026) — https://science.nasa.gov/solar-system/skywatching/whats-up-november-2026-skywatching-tips-from-nasa/
• NASA Science, “November’s Night Sky Notes: Light-Day Away” by Kat Troche (30 October 2026) — https://science.nasa.gov/solar-system/skywatching/night-sky-network/novembers-night-sky-notes-light-day-away/
• NASA Science, “Voyager 1: What Is a Light-Day” (updated 5 November 2026) — https://science.nasa.gov/mission/voyager/voyager-1/voyager-1-what-is-a-light-day/
• NASA Science, “Leonids” — https://science.nasa.gov/solar-system/meteors-meteorites/leonids/
• BBC Sky at Night Magazine, “Leonid meteor shower 2026” — https://www.skyatnightmagazine.com/advice/skills/leonid-meteor-shower-when-how-see
• Universal Time Date, “November 2026 Moon Phases” (U.S. Naval Observatory moon-phase data) — https://www.universaltimedate.com/articles/november-2026-moon-phases
• NASA Science, “NASA’s Voyager 1 Conserves Power, Resolves Brief Communications Pause” (29 October 2026) — https://science.nasa.gov/blogs/voyager/2026/10/29/nasas-voyager-1-conserves-power-resolves-brief-communications-pause/
• NASA Science, “Shine Bright for Voyager’s Light-Day” (4 November 2026, updated 5 November 2026) — https://science.nasa.gov/mission/voyager/voyager-1/shine-bright-for-voyagers-light-day/