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The last total lunar eclipse of the year is set to take place on Tuesday, when the Earth blocks the Sun’s rays from reaching the Moon. Also known as the Blood Moon, the lunar eclipse will take place almost a year after the last total lunar eclipse, and viewers in North America, Central America, most of South America, the Pacific Ocean, Australia, New Zealand, and Asia will see the Moon darken and acquire a reddish hue on Tuesday. This will be the last total lunar eclipse until March 14, 2025.

How to watch the lunar eclipse

The Moon will traverse the northern half of Earth’s shadow, with totality predicted to last 86 minutes. Mid-eclipse happens on November 8th at 10:59 Universal Time (UT) or 4:29pm IST, around six days before apogee, when the Moon is farthest from Earth in its orbit. The actual clock times of the eclipse depend on your time zone.

You don’t need any equipment to observe a Blood Moon, but binoculars or a telescope can help enhance the view and the red colour of Earth’s only natural satellite.

You can also watch the lunar eclipse from the video embedded below

What to expect from the lunar eclipse

As a result, during the eclipse, the Moon will appear 7 percent smaller than it does when it’s at perigee (closest to Earth), but the difference is imperceptible. The eclipse on Tuesday will be a bit brighter than the one that occurred in May — especially in the Moon’s northern half — since the Moon doesn’t glide as close to the dark center of Earth’s shadow.

There are several delightful extras viewers can look out for while admiring the eclipse. During totality, Earth’s shadow dims the Moon sufficiently for stars to be visible right up to its edge. In addition, Uranus reaches opposition just a day after the eclipse, when it’s directly opposite the Earth from the Sun and at its closest and brightest.

And on eclipse night the distant planet will be upper left of the red-hued Moon — binoculars will reveal the planet’s pale disk. The farther west you are, the smaller the gap between planet and Moon. Also, the Northern and Southern Taurid meteor showers peak around this time, so eclipse-watchers might be treated to a few meteors streaking across the night sky.

All stages of the eclipse occur simultaneously for everyone, but not everyone will see the full eclipse. Weather permitting, observers in western North America will witness the entirety of the event on the morning of November 8, with the partial eclipse phase beginning an hour or so after midnight. In Hawai’i, the eclipsed Moon will be directly overhead. Viewers in the central parts of the continent will see all of totality and most of the final partial phases, while those on the East Coast can watch the Sun rise as totality ends.

South America will witness the initial phases of the eclipse up to totality, while Central America can enjoy the show a bit longer and see it through the total phase. The eclipse is an early evening event in central and eastern Asia, Australia, and New Zealand, and the Moon rises either during the earlier partial phases or during totality.

What to observe during the lunar eclipse.

The Moon’s leading edge enters the pale outer fringe of Earth’s shadow: the penumbra. You are unlikely to notice anything until the Moon is about halfway across the penumbra.

  1. Watch for a slight darkening on the Moon’s left side as seen from North America. The penumbral shading becomes stronger as the Moon moves deeper in.
  2. The penumbra is the region where an astronaut standing on the Moon would see Earth covering only part of the Sun’s disc.
  3. The Moon’s leading edge enters the umbra, the cone of Earth’s shadow within which the Sun’s completely hidden. You should notice a dramatic darkening on the leading edge of the lunar disk. With a telescope, you can watch the edge of the umbra slowly engulfing one lunar feature after another, as the entire sky begins to grow darker.
  4. The trailing edge of the Moon slips into the umbra for the beginning of total eclipse. But the Moon won’t black out completely: It’s sure to glow some shade of intense orange or red.
  5. Why is this? The Earth’s atmosphere scatters and bends (refracts) sunlight that skims its edges, diverting some of it onto the eclipsed Moon. If you were on the Moon during a lunar eclipse, you’d see the Sun hidden by a dark Earth rimmed with the reddish light of all the sunrises and sunsets ringing the world at that moment.
  6. The red umbral glow can be quite different from one eclipse to the next. Two main factors affect its brightness and hue. The first is simply how deeply the Moon goes into the umbra as it passes through; the center of the umbra is darker than its edges. The other factor is the state of Earth’s atmosphere. If a major volcanic eruption has recently polluted the stratosphere with thin global haze, a lunar eclipse can be dark red, ashen brown, or occasionally almost black.
  7. In addition, blue light is refracted through Earth’s clear, ozone-rich upper atmosphere above the thicker layers that produce the red sunrise-sunset colors. This ozone-blue light tints the Moon also, especially near the umbra’s edge. You’ll need binoculars or a telescope to see this effect.
  8. As the Moon progresses along its orbit, events replay in reverse order. The Moon’s edge re-emerges into the sunlight, ending totality and beginning a partial eclipse again.
  9. When all of the Moon escapes the umbra, only the last, penumbral shading is left. Sometime later, nothing unusual remains.

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Voyager 2’s Flyby Sheds Light on Uranus’s Magnetic Mystery

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Voyager 2's Flyby Sheds Light on Uranus's Magnetic Mystery

A recent analysis of 38-year-old data from NASA’s Voyager 2 spacecraft has provided fresh insights into the unique magnetosphere of Uranus, according to a study published on November 11 in Nature Astronomy. During Voyager 2’s 1986 flyby, Uranus’ magnetosphere was found to be unexpectedly distorted by a blast of solar wind. The findings suggest that the planet’s magnetic field behaves unlike any other in the solar system.

Findings Highlight Unusual Magnetic Structures

Jamie Jasinski, a planetary scientist at NASA’s Jet Propulsion Laboratory and California Institute of Technology, and lead author of the study, noted that Voyager 2’s timing happened to coincide with an intense solar wind event, a rare occurrence near Uranus. This compression of Uranus’s magnetosphere, seen only around 4% of the time, is thought to be responsible for the unique measurements Voyager captured. Had the spacecraft arrived even a week earlier, Jasinski observed, these conditions would likely have been different, possibly leading to alternative conclusions about Uranus’s magnetic characteristics.

Unlike Earth, Uranus exhibits a complex “open-closed” magnetic process, influenced by its extreme axial tilt. This tilt subjects Uranus to highly variable solar wind effects, resulting in a magnetosphere that opens and closes cyclically.

Implications for Future Uranus Exploration

The study’s conclusions go beyond Uranus itself, offering insights into the magnetic behaviours of its outermost moons, including Titania and Oberon. These moons, it turns out, lie within Uranus’s magnetosphere rather than outside it, making them candidates for investigations into subsurface oceans through magnetic field detection. As Jasinski highlighted, these conditions would simplify detecting any magnetic signatures that suggest liquid beneath the moons’ icy surfaces.

While Voyager 2 remains the only mission to visit Uranus, the study’s findings underscore a growing interest in exploring the ice giant in greater detail.

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Tajikistan rock shelter reveals ancient human migration routes

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Tajikistan rock shelter reveals ancient human migration routes

Archaeologists have uncovered a rock shelter in Tajikistan’s Zeravshan Valley that was occupied by multiple human species, including Neanderthals, Denisovans, and Homo sapiens, for over 130,000 years. Discovered along the Zeravshan River in the Inner Asian Mountain Corridor (IAMC), this site, known as Soii Havzak, provides new insight into the migration patterns of ancient humans. Researchers believe the IAMC may have facilitated interactions between these groups, offering clues about how they lived and possibly coexisted in Central Asia.

Discovery Along the Zeravshan River

A team led by Dr Yossi Zaidner, senior lecturer at the Institute of Archaeology at the Hebrew University of Jerusalem, recently excavated the site. Evidence of various human occupations was found, including stone tools and animal bones dating from 150,000 to 20,000 years ago. Zaidner noted that Central Asia’s IAMC could have served as a natural migration route, allowing distinct human populations to cross paths. “This discovery is crucial for understanding ancient human presence in Central Asia and how different human species may have interacted here,” he stated in a press release.

Significance for Human Migration and Interaction

Artifacts from Soii Havzak, including stone blades, rock flakes, crafted flints, and signs of fire use, suggest repeated use of the shelter by different human groups. The find highlights Central Asia’s significance in ancient migration routes, with the Zeravshan River likely serving as a pathway for early humans as they dispersed across continents.

A Pathway for Ancient Civilisations

Beyond its prehistoric importance, the Zeravshan Valley later became a key route on the Silk Road, linking distant civilisations such as China and Rome. Researchers expect further studies at Soii Havzak to shed light on the broader implications of this region in ancient human migration and cross-cultural interactions, aiming to deepen understanding of human history and evolution during the Middle Paleolithic era.

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NASA’s Juno shows Jupiter’s storms and moon Amalthea up close

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NASA’s Juno shows Jupiter’s storms and moon Amalthea up close

NASA’s Juno spacecraft has delivered breathtaking images of Jupiter, highlighting the planet’s swirling, multicoloured storms and unique moons. During Juno’s 66th close flyby on October 23, the spacecraft approached the planet’s polar regions and captured close-up views of its fifth-largest moon, Amalthea. The raw images collected by JunoCam have since been processed by citizen scientists, who enhanced colours and contrasts to reveal Jupiter’s atmospheric details in a new light.

Spectacular Details of Jupiter’s Storms Revealed

Citizen scientist Jackie Branc processed one of Juno’s most striking images, showcasing a region on Jupiter called a Folded Filamentary Region (FFR), located near the planet’s subpolar areas. FFRs are known for their complex cloud patterns, which include white billows and fine, thread-like filaments. This recent image captures Jupiter’s stormy atmosphere with an emphasis on these fine details, giving scientists and the public alike a vivid view of the planet’s dynamic weather systems.

Juno’s data, available to the public online, allows enthusiasts and researchers to adjust image features such as contrast and colour balance. This collaborative effort has enabled a range of perspectives on Jupiter’s atmospheric bands, turbulent clouds, and powerful vortices.

Amalthea: A Close-Up of Jupiter’s Unique Moon

Juno also captured images of Amalthea, a small, potato-shaped moon only 84 kilometres in radius. In images processed by Gerald Eichstädt, the white balance was adjusted to distinguish Amalthea from the blackness of space, presenting the moon in stark relief. This view of Amalthea, with its rugged, irregular shape, adds to our understanding of Jupiter’s complex satellite system.

Launched in 2016, the Juno mission was originally planned to conclude in 2021, but its mission has been extended, with plans to end in September 2025. When its mission concludes, Juno will plunge into Jupiter’s atmosphere, marking the end of its successful exploration journey.

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