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You can see a giant 'hole' shoot across Saturn this summer — and it won't happen again until 2040

You can see a giant 'hole' shoot across Saturn this summer — and it won't happen again until 2040

Yahooa day ago

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Over the next few months, there will be several chances to see a giant "hole" shoot across the surface of Saturn, as the shadow of its largest moon passes across the ringed planet's Earth-facing surface. The rare spectacle will not be visible again until 2040 — and we'll tell you how to see it from your backyard.
Every 15 years, Saturn and Earth become perfectly aligned so that the gas giant's rings face our planet head-on. In March, this alignment was so perfect that the planet's super-thin rings completely disappeared from view, Live Science's sister site Space.com previously reported. In 2032, the opposite will occur, and we will be able to see the entirety of the dusty disks in a perfect circle around the fifth planet from the sun.
Saturn's current orientation also means that the planet's largest moon, Titan, circles it in a way that causes its large shadow to repeatedly transit the planet's surface, similar to how the moon's shadow races across Earth during a lunar eclipse. The same phenomenon also happens to some of Saturn's other major moons, including Mimas and Rhea. However, their respective shadows are smaller and lighter than Titan's, making it harder to see them.
Titan orbits Saturn roughly every 16 days, meaning that there will be a total of 10 transits visible while Earth is still aligned with the ringed gas giant. Three of these transits have already happened, most recently on June 16. But there are still seven more occasions when the spectacle could be visible between now and mid-autumn, depending on your location and weather conditions at the time.
The remaining transits will occur on July 2, July 18, Aug. 3, Aug. 19, Sept. 4, Sept. 20 and Oct. 6, according to Sky & Telescope. For exact times, check the table below.
Related: Saturn gains 128 new moons, giving it more than the rest of the solar system combined
Titan will also be visible during these transits, although its position relative to the shadow changes with each viewing, as Saturn continues to circle the sun. But it will be slightly smaller than the shadow it casts.
To see the spectacular transits for yourself, you will need a good telescope with at least 200x magnification. From North America, most of the transits will start and end before sunrise. To find where Saturn will be in the night sky, you can use websites such as TheSkyLive.com.
However, we recommend that you don't leave it to the last minute, because adverse weather conditions could completely obscure your view. As you can see from the table below, the length of transits will also decrease each time, which means you will have to be more precise with your timings later in the year; On Oct. 6, the shadow will only be momentarily visible when Titan is exactly at mid-transit.
Date
Transit start (EST)
Mid-transit (EST)
Transit end (EST)
Transit duration (minutes)
July 2
03:40
06:35
09:03
323
July 18
03:00
05:44
08:05
305
Aug. 3
02:25
04:52
07:04
279
Aug. 19
01:52
04:01
06:00
248
Sept. 4
01:25
03:09
04:50
205
Sept. 20
01:09
02:20
03:34
145
Oct. 6
N/A
01:32*
N/A
1
But even if you miss the impressive shadow over the next few months, you will still be able to see Titan pass in front of Saturn every 16 days, up until January 2026, when it will stop transiting the planet until 2040.
RELATED STORIES
—There's liquid on Titan, Saturn's largest moon. But something's missing and scientists are confused.
—Saturn's 'Death Star' moon Mimas may have an underground ocean scientists never believed could exist
—There's a weird, disappearing dark spot on Saturn's moon Enceladus
If you are lucky enough to see the stunning celestial spectacle, be sure to keep in mind that Titan is the second-largest moon in the solar system, behind Jupiter's behemoth satellite Ganymede. At more than 3,200 miles (5,150 kilometers) across, it is also slightly bigger than the planet Mercury and 50% wider than Earth's moon.
It is also the only one of the solar system's moons, other than Earth's, that has been visited by a human-made spacecraft. The European Space Agency's Huygens probe landed on the Saturnian satellite in 2005 — and it is still there today.

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Rocket Lab Completes Record Launch Turnaround From Launch Complex 1, Successfully Deploys 68 th Electron Mission
Rocket Lab Completes Record Launch Turnaround From Launch Complex 1, Successfully Deploys 68 th Electron Mission

Business Wire

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Rocket Lab Completes Record Launch Turnaround From Launch Complex 1, Successfully Deploys 68 th Electron Mission

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I Heard Jurassic World Dominion Was Bad, But I Would Watch It Over Any Other Jurassic Sequel
I Heard Jurassic World Dominion Was Bad, But I Would Watch It Over Any Other Jurassic Sequel

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I Heard Jurassic World Dominion Was Bad, But I Would Watch It Over Any Other Jurassic Sequel

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Scientists discover rare planet at the edge of the Milky Way using space-time phenomenon predicted by Einstein
Scientists discover rare planet at the edge of the Milky Way using space-time phenomenon predicted by Einstein

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Scientists discover rare planet at the edge of the Milky Way using space-time phenomenon predicted by Einstein

When you buy through links on our articles, Future and its syndication partners may earn a commission. Astronomers have used a space-time phenomenon first predicted by Albert Einstein to discover a rare planet hiding at the edge of our galaxy. The exoplanet, dubbed AT2021uey b, is a Jupiter-size gas giant located roughly 3,200 light-years from Earth. Orbiting a small, cool M dwarf star once every 4,170 days, the planet's location is remarkable — it is only the third planet in the entire history of space observation to be discovered so far away from our galaxy's dense center. Yet perhaps more exceptional than the planet's location is the method used to discover it. The effect, known as microlensing, occurs when the light of a host star is magnified by the warping of space-time due to a planet's gravity. The researchers published their findings May 7 in the journal Astronomy & Astrophysics. "This kind of work requires a lot of expertise, patience, and, frankly, a bit of luck," study co-author Marius Maskoliūnas, an astronomer at Vilnius University in Lithuania, said in a statement. "You have to wait for a long time for the source star and the lensing object to align and then check an enormous amount of data. Ninety percent of observed stars pulsate for various other reasons, and only a minority of cases show the microlensing effect." Nearly 6,000 alien worlds beyond our solar system have been discovered since the first exoplanet was detected in 1992. The two most common detection methods, called transmit photometry and radial velocity, detect planets through the dimming of host stars as they pass in front of them, or from the wobble that the planets' gravitational tugs impart upon them. A rarer method, known as microlensing, is derived from Einstein's theory of general relativity and is produced by massive objects as they warp the fabric of the universe, called space-time. Gravity, Einstein discovered, isn't produced by an unseen force but by space-time curving and distorting in the presence of matter and energy. Related: James Webb telescope discovers its first planet — a Saturn-size 'shepherd' still glowing red hot from its formation This curved space, in turn, determines how energy and matter move through it. Even though light travels in a straight line, light traveling through a curved region of space-time also travels in a curve. This means that when a planet passes in front of its host star, its gravity acts as a lens — magnifying the star's light and causing its brightness to spike. "What fascinates me about this method is that it can detect those invisible bodies," Maskoliūnas said, essentially by measuring the bodies' shadows. "Imagine a bird flying past you. You don't see the bird itself and don't know what color it is — only its shadow. But from it, you can, with some level of probability, determine whether it was a sparrow or a swan and at what distance from us. It's an incredibly intriguing process." RELATED STORIES —James Webb telescope zooms in on bizarre 'Einstein ring' caused by bending of the universe —James Webb telescope uncovers 1st-ever 'Einstein zig-zag' hiding in plain sight — and it could help save cosmology —Stunning 'Einstein engagement ring' from the early universe is one of the oldest ever discovered AT2021uey b's cosmic shadow was first spotted in 2021 in data taken by the European Space Agency's Gaia telescope, revealing its presence by a momentary spike in the brightness of its host star. The astronomers then took detailed follow-up observations using Vilnius's Molėtai Astronomical Observatory, from which they calculated its source as a planet 1.3 times the mass of Jupiter. Its host star burns at about half the temperature of our own, and the gas giant sits four times farther than Earth's distance from the sun. According to the researchers, the planet's discovery so far from the Milky Way's central bulge, in a region that is comparatively sparse in heavier elements needed to form planets, offers a fresh hint of the unlikely places where planets can be found. "When the first planet around a sun-like star was discovered, there was a great surprise that this Jupiter-type planet was so close to its star," Edita Stonkutė, another Vilnius University astronomer and leader of the microlensing project that found the planet, said in the statement. "As data accumulated, we learned that many types of planetary systems are completely unlike ours — the solar system. We've had to rethink planetary formation models more than once."

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