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APOD: 2026 October 6 – A Complete Auroral Oval from SMILE

2026-10-06 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.

A round Earth takes up most of the video. The dayside and nightside are visible. A swirling, moving aurora is visible surrounding Earth's North Pole. There are some bright objects that speckle the background.
ESA, CAS, SMILE, UVI

A Complete Auroral Oval from SMILE

Explanation: Have you ever seen a complete auroral oval? You can’t see one from the ground because it makes too large a circle around one of Earth’s magnetic poles. But spacecraft high above the Earth can see them. The featured video from ESA and CAS‘s robotic SMILE spacecraft shows not only a full auroral oval, but using ultraviolet light, one that occurred during the day. The time-lapse covers about an hour in late July and shows visually how variable and turbulent auroras really are. The points of light on the sides are distant stars that appear to move only because SMILE’s camera view shifts as the spacecraft orbits the Earth. A goal of SMILE is to better understand how the Sun’s wind interacts with the Earth’s magnetosphere — and so better understand how to protect astronauts, spacecraft, and ground-based electrical grids from solar storms.

Tomorrow’s picture: a ghost

Date: October 6, 2026
Credit: ESA, CAS, SMILE, UVI
Authors & editors: Robert Nemiroff, Jerry Bonnell, Cecilia Chirenti, Keighley Rockcliffe
A service of: ASD at NASA / GSFC,
NASA Science Activation & Michigan Tech. U.

The Beaver Brown Waters of Rupert Bay 

2026-10-06 04:01

Dark brown water from the Nottaway, Harricanaw, and Moose rivers swirls into dark blue bay waters and mingles with plumes of lighter brown suspended sediment. Charlton Island and the much smaller Stag Rock are visible close to the shoreline.

The Cree word pahtaaunaakun seems particularly apt for describing the distinctive brown hues of the waters that drain into Hannah Bay and Rupert Bay in Canada. Meaning the “color of singed beaver” in Southern East Cree, the word evokes the rich brown of the humic-substance-stained waters that were flowing into the two bays in late September 2026, as well as the role that beavers have long played in the mythology and history of the region.

As the rivers and streams that flow into the two bays—the southernmost extensions of James Bay—wind through the boreal forests and boggy wetlands of northern Quebec and Ontario, they often carry water stained brown by colored dissolved organic matter (CDOM), which absorbs light in the blue and ultraviolet parts of the electromagnetic spectrum and causes water to appear brown. CDOM, including organic substances derived from tannins and lignins, leaches from decaying leaves, roots, bark, and soils into streams and rivers. Similar substances are what stain tea water brown.

When the OLI (Operational Land Imager) on Landsat 9 captured this image on September 27, 2026, the Moose, Nottaway, and Harricanaw rivers were carrying tea-colored water across the broad mudflats of Hannah and Rupert bays and mingling with the darker blue waters of James Bay.

The mudflats, the light brown areas along the shore, are a product of the shallow, sloping bathymetry in the southernmost part of James Bay. Postglacial rebound is slowly lifting the entire landscape, and rivers continually deposit fine mud particles and other sediments that build up the flats. The comings and goings of tides and river currents often stir up the mud, producing the lighter brown plumes of suspended sediment that mix with the incoming river water.

Differences in moisture levels and vegetation patterns likely contribute to the green dendritic, veinlike patterns visible onshore. Denser, more forested growth along stream channels appears dark green, while the poorly drained landscapes in the surrounding peat bogs have less extensive tree cover and appear lighter green.

Beavers have long played a role in the history and mythology of the lake-dotted landscapes in this part of Canada. The Cree people, who have lived in the region for thousands of years, have traditionally hunted beaver for both meat and pelts. European traders arrived in Rupert Bay as early as the 1660s to pursue the animals as well, leading to the establishment of several trading posts along the bay’s shores and the founding of the Hudson’s Bay Company to cultivate the fur trade, especially in beaver pelts.

Beavers also feature prominently in the area’s Cree mythology and environmental history in other ways. For instance, one Cree myth about this area, recorded by the anthropologist Alanson Skinner, tells of a giant pursuing an enormous mythical beaver down the Nottaway River until the beaver escaped into Rupert Bay. According to the myth, the giant then picked up a huge rock and hurled it at the fleeing animal, missing the beaver but creating Stag Rock, the distinctive island found in the river’s mouth today.

In an early example of a managed beaver preserve in Canada, the Hudson’s Bay Company worked with local Cree people in the 1830s and again a century later to set up Charlton Island as a place to raise beavers for later trapping. After predators had been removed and several breeding pairs delivered to the island, its beaver population ballooned, according to historical accounts.

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

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Curiosity Blog, Sols 5029-5035: Back in the Lab

2026-10-06 01:04

2 min read

Curiosity Blog, Sols 5029-5035: Back in the Lab

A black-and-white, downward-facing image from the Curiosity rover's Navigation Camera. Parts of the rover's metallic hardware frame the bottom and left edges of the image, including cylindrical mechanisms, structural joints, and a small checkered calibration target on the lower right. The rover casts a long, distinct diagonal shadow across the Martian surface below. The terrain consists of flat, light-colored bedrock covered in a prominent network of intersecting cracks. Patches of darker sand or soil and small, loose rock fragments are scattered across the surface, and a single, small circular drill hole or contact mark is clearly visible in the smooth bedrock near the center-right.
Image of the “Basque Lakes” drill hole and surrounding tailings (the small mound near the lower right corner of the workspace bedrock). NASA’s Mars rover Curiosity acquired this image using its Left Navigation Camera (Navcam) on Sept. 24, 2026 — Sol 5024, or Martian day 5,024 of the Mars Science Laboratory mission — at 05:46:29 UTC.
NASA/JPL-Caltech

Written by Michelle Minitti, MAHLI Deputy Principal Investigator

Earth planning date: Friday, Oct. 1, 2026

The majority of Curiosity plans involve mosaics from Mastcam and ChemCam, chemistry analyses from ChemCam and APXS, images from MAHLI and MARDI, and systematic measurements from REMS, RAD, and DAN. It is only when we stop to drill that we fully live up to our Mars Science Laboratory designation, using CheMin and SAM to analyze Martian rock. This was one such week, where our focus was wrapping up CheMin analysis of a sample from the “Basque Lakes” drill hole (pictured above), preparing SAM for its analysis, and analyzing the sample with the SAM tunable laser spectrometer (TLS). The CheMin data were key to SAM deciding to analyze the sample at all, and SAM will wait to receive the results from the TLS run (measurement of the volatiles present) to decide if they want to follow up with a separate mass spectrometry analysis next week. 

The laboratory activities require a significant portion of the daily power budget of the rover so the rest of the payload largely takes a back seat during drill campaigns, a worthy trade for CheMin and SAM’s valuable data. However, using the power that was available, we gathered data to contextualize our drill location and continued our systematic environmental monitoring. Mastcam acquired a 360-degree mosaic of our surroundings to build a full picture of the geologic setting of the sample. Its color and improved resolution relative to Navcam also guided subsequent science requests, such as more focused Mastcam imaging of structures near the workspace, and ChemCam RMI imaging of the “Cordillera” butte. Mastcam, coupled with Navcam, also planned a series of seven photometry observations spread across fixed times of day. These observations evaluate how the observed spectral characteristics of targets change as the Sun angle on them changes. They help us better interpret images from the rover and from cameras in orbit. ChemCam gathered more chemistry data from the variety of materials in the workspace, from the Basque Lakes drill hole interior, to sand ripples (“French Creek”) covering the bedrock, to loose gray clasts of unknown origin (“Wooley” and “Fireside”) sprinkled across the workspace. Our environmental monitoring activities included regular REMS, RAD, and DAN measurements and Navcam and Mastcam monitoring of dust loading in the atmosphere, cloud activity, and dust-devil activity.

A rover sits on the hilly, orange Martian surface beneath a flat grey sky, surrounded by chunks of rock.
NASA’s Curiosity rover at the base of Mount Sharp
NASA/JPL-Caltech/MSSS

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Last Updated

Oct 05, 2026

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A Journey to the Depths of Ancient Mars?

2026-10-06 00:48

A view of the Martian terrain showing reddish-brown, dusty ground littered with rocks of various sizes. In the foreground and midground, there is a cluster of large, angular rocks characterized by a highly textured, speckled pattern of white and dark grey. The surrounding surface is covered in smaller, rough pebbles and stones partially embedded in the sand. No sky or horizon is visible.
NASA’s Perseverance rover acquired this image of some light-toned boulders scattered across a hillside of a region called “Lac de Charmes,” beyond the western rim of Jezero crater. Perseverance captured the image using its Right Mastcam-Z camera on Aug. 30, 2026 (Sol 1965, or Martian day 1,965 of the Mars 2020 mission) at the local mean solar time of 11:42:55.
NASA/JPL-Caltech/ASU

Written by Alex Jones, Ph.D. candidate at Imperial College London

Sept. 29, 2026

After spending the last six months exploring “Lac de Charmes,” a region of ancient rock beyond Jezero crater’s western rim, Perseverance has stumbled upon a vast field of light-toned rocks peppering the Martian surface. 

Light-colored rocks are a strange sight on Mars, a planet dominated by dark-colored basaltic rocks. This many light-colored rocks in one place piqued the Science Team’s interest… what are they? How did they get here? 

To answer the first question, Perseverance has been investigating the composition and textures of these rocks. Data so far indicates that many of them are igneous rocks called gabbro, which are dominated by minerals rich in iron and magnesium. Such rocks typically form by slow cooling and crystallization of magma deep in the crust. 

So how did these deep fragments of Mars find their way to the surface? 

Perseverance has spent the last week trying to answer this question by investigating a patch of possible bedrock poking out between the light-toned boulders and loose regolith. 

Initial images suggest that the rock is made up of light- and dark-colored, angular fragments of rock, forming what geologists call a breccia. One possibility the team is investigating is that the light-toned boulders scattered across the hillside have eroded out of this breccia. 

A wide-angle, slightly distorted view from beneath the Perseverance rover on Mars. Parts of the rover's dark chassis frame the top edge. On the bottom right, a section of one of its treaded wheels rests on the dirt. On the left, the rover's robotic arm, featuring a complex instrument turret at its end, is extended toward the ground. The arm casts a long, distinct shadow over the reddish-brown, rocky sand. Parallel rover tracks are pressed into the soil, leading away toward a relatively flat, barren landscape that ends at a horizon of distant, low hills under a pale sky.
Perseverance deploys its arm mounted instruments to investigate a possible breccia outcrop at “Idubi.” The rover acquired this image of the area in front of it using its onboard Front Right Hazard Avoidance Camera A on Sept. 27, 2026 (Sol 1992, or Martian day 1,992 of the Mars 2020 mission) at the local mean solar time of 12:03:10.
NASA/JPL-Caltech

Breccias often form through violent processes involving the fracturing and transport of rock to produce their angular shapes. Layers of breccia observed outside Jezero have previously been attributed to asteroid impacts on early Mars. Perhaps similar impacts (or the Jezero impact itself?) could be responsible for digging up these light-colored blocks.  

Only time (and of course, Perseverance), will tell. 

NASA to Stream SpaceX Crew-12 Return, Splashdown Live

2026-10-05 21:44

NASA’s SpaceX Crew-12 members gather for a portrait in the pressure suits they will wear when they depart the International Space Station inside the SpaceX Dragon spacecraft. From left, Roscosmos cosmonaut and mission specialist Andrey Fedyaev, NASA astronauts Jack Hathaway and Jessica Meir, Crew-12 pilot and commander respectively, and ESA (European Space Agency) astronaut and mission specialist Sophie Adenot.
Credit: NASA/Anil Menon

NASA and SpaceX are targeting no earlier than 8:05 a.m. EDT, Wednesday, Oct. 7, for the undocking of the agency’s SpaceX Crew-12 mission from the International Space Station, pending weather conditions.

An Oct. 7 undock puts NASA astronauts Jessica Meir and Jack Hathaway, ESA (European Space Agency) astronaut Sophie Adenot, and Roscosmos cosmonaut Andrey Fedyaev on schedule to splash down off the coast of California at approximately 11:34 a.m. on Thursday, Oct. 8.

NASA’s live Crew-12 return coverage will stream through a variety of platforms. Learn where to watch online:

https://www.nasa.gov/live

Mission managers continue monitoring conditions in the recovery area, as undocking of the SpaceX Dragon depends on spacecraft readiness, recovery team readiness, weather conditions in the Pacific off the coast of California, and other factors.

NASA’s coverage is as follows (all times Eastern and subject to change based on real-time operations):

Wednesday, Oct. 7

6 a.m.: Hatch closure coverage begins

6:20 a.m.: Hatch closing

7:45 a.m.: Undocking coverage begins

8:05 a.m.: Undocking

Following the conclusion of undocking coverage, NASA will provide audio-only communications between Crew-12, the space station, and flight controllers during Dragon’s transit away from the orbital complex.

Thursday, Oct. 8

10:20 a.m.: Return coverage begins

10:46 a.m.: Deorbit burn

11:34 a.m.: Splashdown

1:15 p.m.: International Space Station briefing for Crew-12 return and SpaceX Commercial Resupply Services-35 launch with the following participants:

  • Bill Spetch, deputy manager of Commercial, NASA’s Low Earth Orbit Program
  • Dr. Liz Warren, deputy chief scientist, NASA’s Low Earth Orbit Program
  • Lee Echerd, senior mission manager, Customer Operations and Integration, SpaceX
  • Andreas Mogensen, leader, Human Exploration Group, ESA

To participate virtually in the teleconference, media must contact the NASA Johnson newsroom for call details by 12 p.m., Oct. 8, at: jsccommu@mail.nasa.gov or 281-483-5111. To ask questions, media must dial in no later than 10 minutes before the start of the call. The agency’s media credentialing policy is available online.

For more information about the Crew-12 mission, visit:

https://www.nasa.gov/mission/nasas-spacex-crew-12

-end-

Joshua Finch / Jimi Russell
Headquarters, Washington
202-358-1100
joshua.a.finch@nasa.gov / james.j.russell@nasa.gov

Sandra Jones / Joseph Zakrzewski
Johnson Space Center, Houston
281-483-5111
sandra.p.jones@nasa.gov / joseph.a.zakrzewski@nasa.gov

Steve Siceloff
Kennedy Space Center, Fla.
321-867-2468
steven.p.siceloff@nasa.gov

TechCrunch - Latest

Lucid Motors’ EV output falls to lowest level in almost 2 years

2026-10-05 21:54

The company is deliberately limiting production after years of struggling to find mass-market demand for its EVs.
OpenAI will start watermarking ChatGPT’s text in the EU

2026-10-05 20:36

OpenAI will watermark ChatGPT and Codex text in the EU to comply with the AI Act. Editing can make the invisible marks harder to detect, it says.
Etched fields funding offers at $40B+ valuation, sources say

2026-10-05 20:24

Just a couple of months after its last big raise, the AI chip startup is already being plied with investment offers at double or more its current value, sources tell TechCrunch.
After Factory’s public spat with Khosla, Menlo proudly invests

2026-10-05 19:38

Days after Vinod Khosla called Factory a struggling also-ran, Menlo has shown up with a check and a glowing blog post.
Reflection debuts Beam, an open-weight AI model to rival Chinese models at lower compute cost

2026-10-05 19:33

Reflection is aiming Beam and future models at enterprises and sovereign nations. The pitch is to build “AI factories,” a product that would let institutions build their own customized, local AI system by training Reflection’s AI models on their own proprietary data.
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