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November’s Night Sky Notes: Light-Day Away

2026-10-30 10:00

2 min read

November’s Night Sky Notes: Light-Day Away

A fleet of spacecraft zoom across Jupiter and Saturn is this futuristic take on racing posters.
NASA’s Voyager mission took advantage of a once-every-175-year alignment of the outer planets for a grand tour of the solar system. The twin spacecraft revealed details about Jupiter, Saturn, Uranus and Neptune – using each planet’s gravity to send them on to the next destination. Voyager set the stage for such ambitious orbiter missions as Galileo to Jupiter and Cassini to Saturn. Today both Voyager spacecraft continue to return valuable science from the far reaches of our solar system.
NASA/JPL-Caltech

Twin Travelers

In 1977, NASA launched twin spacecraft Voyager 1 and 2, taking advantage of a once-every-175-year planetary alignment of the four largest planets in our solar system: Jupiter, Saturn, Uranus, and Neptune. Using six gravity assists between them, this Grand Tour gave us up-close views of the gas and ice giants, including several moons. By the 1980s, the two probes went their separate ways at Saturn. As Voyager 2 continued toward Uranus and Neptune, Voyager 1 grabbed one more portrait of the solar system (excluding Mercury and Mars), including a final image of the pale blue dot we call home.

A round gold plate featuring diagrams that explain how to play a phonograph record and the location of Earth.
The Golden Record Cover
NASA/JPL-Caltech

Playlist

“Hello from the children of planet Earth.”

Every good road trip needs some music to match. In this case, each craft carries the Golden Record, a 12-inch phonograph record with spoken greetings in 55 languages, 27 musical tracks, 116 images, and other sounds from Earth. Each record is protected by an outer cover featuring etchings showing our Sun’s location relative to 14 pulsars, along with instructions on how to play it. The design used various metals to protect the information encoded from space radiation: the record used copper and gold plating, and the cover used aluminum. The cover was electroplated with an ultra-pure sample of the isotope uranium-238. Uranium-238 has a half-life of 4.468 billion years.

Are We There Yet?

Did you know that a light-minute is a measure of distance, not time? In August 2012 and November 2018, Voyager 1 and 2 crossed the heliopause, the boundary where the Sun’s solar wind meets the interstellar medium. Using NASA’s Deep Space Network, Earth communicates with both spacecraft and tracks each on its journey. At the time of this article, the Canberra antenna tracked Voyager 1 at 25.80 billion km, or just over 16 billion miles.

This graphic shows the position of NASA's Voyager 1 and Voyager 2 probes, outside of the heliosphere, a protective bubble created by the Sun that extends well past the orbit of Pluto.
This graphic shows the position of NASA’s Voyager 1 and Voyager 2 probes, outside of the heliosphere, a protective bubble created by the Sun that extends well past the orbit of Pluto.
NASA/JPL-Caltech

On November 18, 2026, 49 years after its launch, Voyager 1 will cross the one-light-day mark, 16.1 billion miles from the Sun. You may have heard the term light-year in your favorite sci-fi movie or show, or when stargazing and referring to an object outside of our solar system. This video best demonstrates the different distances between the inner solar system, outer solar system, and beyond, using light measurements. Additionally, track each Voyager spacecraft here.

You can get a real understanding of what a gravity assist might be like with our Gravity Assist activity and learn what it’s like to measure a “light minute” with our Measuring a Kid Minute activity guide!

APOD: 2026 October 30 – Haunting the Cepheus Flare

2026-10-30 04:05

APOD

Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

Interstellar dust clouds and dark nebulae in the Cepheus molecular cloud.

Haunting the Cepheus Flare

Explanation: Spooky shapes seem to haunt this dusty expanse, drifting through the night in the royal constellation Cepheus. Of course, the shapes are cosmic dust clouds visible in dimly reflected starlight. Far from your own neighborhood, they lurk above the plane of the Milky Way at the edge of the Cepheus Flare molecular cloud complex some 1,200 light-years away. Over 2 light-years across and brighter than most of the other ghostly apparitions, vdB 141 or Sh2-136 is also known as the Ghost Nebula. It lies at lower right in the starry field of view. Inside the Ghost Nebula are reddish telltale signs of dense cores collapsing in the early stages of star formation. With the eerie hue of interstellar dust reflecting bluish light from hot young stars of NGC 7023, the Iris Nebula stands out against the dark just left of center. In the broad telescopic frame, these fertile interstellar dust fields stretch almost six full moons across the sky.

Tomorrow’s picture: night on a spooky planet

Date October 31, 2026
Credit & Copyright: Mirko Tondinelli
Authors & editors: Jerry Bonnell, Cecilia Chirenti, Robert Nemiroff, Keighley Rockcliffe
A service of: ASD at NASA / GSFC,
NASA Science Activation & Michigan Tech. U.

Vega Island Frozen in Fright

2026-10-30 04:01




March 22, 2025
October 10, 2026

Part of an ice-covered Antarctic island has the appearance of a grinning skull in profile, with a rock outcrop as an eye socket and lateral moraine as a mouth.
Part of an ice-covered Antarctic island has the appearance of a grinning skull in profile, with a rock outcrop as an eye socket and lateral moraine as a mouth.
NASA Earth Observatory / Lauren Dauphin

Part of an ice-covered Antarctic island has the appearance of a grinning skull in profile. Some of the face has a gray appearance where seasonal snow is gone and bare ice is exposed.
Part of an ice-covered Antarctic island has the appearance of a grinning skull in profile. Some of the face has a gray appearance where seasonal snow is gone and bare ice is exposed.
NASA Earth Observatory / Lauren Dauphin

Part of an ice-covered Antarctic island has the appearance of a grinning skull in profile, with a rock outcrop as an eye socket and lateral moraine as a mouth.
Part of an ice-covered Antarctic island has the appearance of a grinning skull in profile, with a rock outcrop as an eye socket and lateral moraine as a mouth.
NASA Earth Observatory / Lauren Dauphin

Part of an ice-covered Antarctic island has the appearance of a grinning skull in profile. Some of the face has a gray appearance where seasonal snow is gone and bare ice is exposed.
Part of an ice-covered Antarctic island has the appearance of a grinning skull in profile. Some of the face has a gray appearance where seasonal snow is gone and bare ice is exposed.
NASA Earth Observatory / Lauren Dauphin


March 22, 2025

October 10, 2026


Shrouded in ice in the lonely Weddell Sea, Vega Island is an eerie sight to behold. On this speck of land east of the Antarctic Peninsula, ice, rock outcrops, and glacial moraines combine to create the appearance of a smirking skull in profile looking toward Devil Island.

These images show Vega Island’s creepy countenance at the start of austral autumn (left) and in spring (right). They were acquired with the OLI (Operational Land Imager) on Landsat 9 on March 22, 2025, and October 10, 2026, respectively. (Clouds obscured the island in March 2026.) A nunatak jutting out of the ice has the appearance of an eye socket, a lateral moraine forms a mouth, and Bahía del Diablo (Devil’s Bay) Glacier constitutes a jawbone. In the March 2025 image, a layer of snow coats the ice, which is typical of the region’s wettest month. That contrasts with the October 2026 image, when snow is absent from large areas and darker ice surfaces are visible.

Above-average temperatures in winter 2026—particularly in June—were partly responsible for so much bare ice in October, said glaciologist Mauri Pelto of Nichols College. The ice exposed on Vega and nearby islands indicates limited new snow accumulation over the winter, further reduced by sublimation and wind scouring, he said. “The winter season was no treat for these glaciers.”

The melt season ahead may also be more trick than treat. Bare ice is darker than snow and absorbs more solar energy, meaning that melting is poised to speed up as the days grow longer and warmer. “Even a thin cover of new snow from a spring storm would be helpful in the short run,” Pelto said. “When entombed in snow and ice, the skull is preserved. But when exposed to melt, it weathers away, which will lead to a changing jawline and expanding eye socket.”

Part of an ice-covered Antarctic island has the appearance of a grinning skull in profile. Some of the face has a gray appearance where seasonal snow is gone and bare ice is exposed.
October 10, 2026
NASA Earth Observatory/Lauren Dauphin

The first comprehensive mapping of Vega Island’s ice was aided by Landsat imagery. In a study published in 1982, scientists described the island’s four ice caps with protruding rocky cliffs and outlet glaciers. They leveraged early Landsat observations along with aerial photos and topographic maps to catalog 29 glaciers on Vega.

Of those glaciers, Devil’s Bay Glacier has been closely monitored since the austral summer of 1998-1999, with researchers measuring an overall decline in its mass. Satellite images acquired in recent decades show ice loss from other glaciers on the island as well, with increased areas of exposed bedrock.

Long before scientists began tracking its glaciers, Vega was a bright spot in a tale of terror born out of early exploration of the area. The Swedish Antarctic Expedition of 1901-1903 set out to study the geography, geology, climate, and wildlife on and around the eastern Antarctic Peninsula. The party became split into three groups during their explorations, isolated for a winter in different locations. Adding to the horror, they lost their ship to the pack ice. Cape Well-met, as it would come to be known, off the “forehead” of the Vega Island skull, was the site of a happy reunion of two of the groups in spring 1903. Soon thereafter, an Argentinean expedition rescued the survivors of the ordeal.

NASA Earth Observatory images by Lauren Dauphin, using Landsat data from the U.S. Geological Survey. Story by Lindsey Doermann.

References & Resources

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Map Showing Potential Origins of Martian Meteorite Teghaza 001

2026-10-30 00:07

1 Min Read

Map Showing Potential Origins of Martian Meteorite Teghaza 001

A colorful topographic map of Mars displaying planetary elevations from low blue basins to high red volcanic plateaus, marked with white circular dots across the southern hemisphere.

PIA26802

Credits:
NASA/JPL-Caltech/USGS

Description

This global map of Mars shows 13 locations that match the mineralogy and chemistry of Teghaza 001, one of the most ancient Martian meteorites ever found on Earth. While scientists can never know for sure where a Martian meteorite originated, Teghaza 001 includes clues that link it to highlands in the southern hemisphere of the Red Planet.

The base map of this image was produced with data from the Mars Orbiter Laser Altimeter instrument aboard NASA’s Mars Global Surveyor mission. Scientists used data from NASA’s Mars Reconnaissance Orbiter to identify areas of the map (noted with white circles) that have similar mineralogy and chemistry as Teghaza 001.

Slice of Martian Meteorite Teghaza 001

2026-10-29 23:32

1 Min Read

Slice of Martian Meteorite Teghaza 001

A microscopic cross-section of a rock specimen set against a black background, displaying a heavily fractured, mosaic-like mineral texture in shades of gray and black with a 1-millimeter scale bar in the top-left corner.

PIA26801

Credits:
NASA/JPL-Caltech

Description

This slice of Teghaza 001, one of the most ancient Martian meteorites ever found on Earth, was used to determine the age of the rock. Reflected light images like these serve as a scientist’s road map, helping them find minerals of interest to analyze by different instruments.

A microscopic cross-section of a rock specimen set against a black background, displaying a heavily fractured, mosaic-like mineral texture in shades of gray and black with a 1-millimeter scale bar in the top-left corner.
Figure A

Figure A is the same image with annotations showing minerals like iron-titanium oxides (brighter grains) and pyroxene (medium gray), both of which tell a story about the formation of Mars’ crust and mantle. Shocked plagioclase (darker gray) is created by extreme pressures during impacts, including the one that sent Teghaza 001 flying through space to Earth. The alteration represents fine grain carbonate, sulfate and clay minerals formed on Earth.

TechCrunch - Latest

Waymo taps Toyota to supply robotaxis for Japan and the U.K.

2026-10-30 07:01

Waymo will begin testing self-driving versions of Toyota's electric bZ4X vehicles in Japan next year as part of a broader partnership with the automaker.
You don’t need to believe in a god to get a religious exemption from using AI at work

2026-10-30 01:20

David Durman, a University of Kentucky administrator, recently earned a religious exemption from using AI in the workplace.
Andy Jassy says Prime Video is on track to earn ‘tens of billions of dollars’

2026-10-29 23:44

The success of blockbuster hits like "Project Hail Mary" and "Verity" is only part of the story, Amazon's CEO says.
AWS will be a $1T business, Jassy says — but first, it will spend big

2026-10-29 23:42

Amazon wants to be the king of AI cloud computing and become the first $1 trillion revenue business. But to do that it will have to continue on its capex spending spree, its CEO said Thursday.
Binance pauses withdrawals as hackers suspected of stealing billions in crypto

2026-10-29 22:27

Some estimates say hackers stole billions in crypto from Binance, the world's largest cryptocurrency exchange, during a cyberattack on Thursday.
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