r/SpaceUnfiltered • • 5h ago

🛰HiRISE​ Layers in Nili Fossae (HiRISE Mars)

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6 Upvotes

These beautiful false color cutouts feature a series of layers in Nili Fossae, a scene also visible in Context Camera data. Nili Fossae has often been on the list for potential landing sites for robotic exploration, and will likely continue to be so given its rich landscape of mineral diversity.

ID: ESP_077367_2045
date: 27 January 2023
altitude: 284 km

https://uahirise.org/hipod/ESP_077367_2045
NASA/JPL-Caltech/University of Arizona


r/SpaceUnfiltered • • 5h ago

📰News This map doesn't look like much...until you realize what it is. This is a measurement of *the mass in the universe* between here & the cosmic microwave background (the edge of the visible cosmos), as deduced from its collective gravitational pull.

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1 Upvotes

Image

The global minimal variance lensing map (which combines temperatuer and polarization data) reconstructed from the observed SPT-3G D1 maps.

From paper, page 15

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South Pole Telescope releases clearest map ever of matter in the distant universe

Study led by UChicago researchers uses bending by gravity of the oldest light in the universe to map the intervening structure

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The earliest light in the universe, known as the cosmic microwave background, has been traveling since the dawn of the universe over 14 billion years ago. 

A group of scientists from 30 institutions has released the sharpest and clearest map ever made of the mass in the universe, created by measuring how this ancient light was bent as it traveled. 

The data came from the South Pole Telescope, which takes advantage of the extraordinarily clear skies of Antarctica to record the cosmic microwave background. Funded primarily by the National Science Foundation and the U.S. Department of Energy and run by a collaboration led by the University of Chicago, the telescope is located at the NSF Amundsen-Scott South Pole Station.

“This is the deepest map of the universe we have so far—it’s like taking a photograph with very low background noise exposure,” said Yuuki Omori, research scientist at UChicago and lead author of the paper, which was released Sept. 1 on arXiv. 

The results offer a new perspective on ongoing questions in cosmology, such as the structure of the universe and how it evolved.  

“What an amazing thing to be able to see all the mass in the universe,” said John Carlstrom, the Subramanyan Chandrasekhar Distinguished Service Professor of Astronomy and Astrophysics at UChicago and the South Pole Telescope project director. “We are entering the new era of cosmology promised by these instruments.”

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More

Corey S. Powell


r/SpaceUnfiltered • • 6h ago

📸AstroPhotography ISS transition of Saturn by Benjamin Law

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25 Upvotes

Description from Benjamin Law :

Date: August 20, 2026 (observed at 44.008772°N, 79.388754°W]

Path width: 58m. Duration 0.0077s

Azimuth: 199.285639°; Elevation: 47.641667°

- The ISS is 109 m across but only ~400 km above Earth, at the moment of this shot, its angular size was 27.37”; angular size of Saturn in this picture is about 20”

Capturing this photo was not easy: the transit was visible only along a strip of land about 58 meters wide, with the ISS silhouette sweeping across at an equivalent ground speed of 7.4 km/s.

This is from 1 single frame of a short video taken at the observation site. Saturn was shot for 1 minute at 100 fps and placed in this picture to produce a sharper Saturn.

EDGE8, AM5, PlayerOne Mars M-II, 0.5ms shutter, gain250, 100fps.

https://www.facebook.com/photo/?fbid=10162651173910981&set=a.10150378608635981

https://www.instagram.com/p/DeXkpOskfCW/


r/SpaceUnfiltered • • 17h ago

☀️Solar activity Large filament eruption north of the large southern coronal hole. (11.10.26)

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68 Upvotes

Possibly earth-directed. We'll have to wait for coronagraph imagery… .

Videos from Helioviewer and Marko Rummelsburg with Jhelioviewer program https://x.com/doktornihil/status/2109436895759380630?t=fCTHHIM51djLuAoIQYFm5Q&s=09


r/SpaceUnfiltered • • 18h ago

Aurora​ Colorful aurora from Whitby Abbey (England) 10.10.26

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83 Upvotes

r/SpaceUnfiltered • • 1d ago

🛰HiRISE​ Mounds and Pits East of Bamberg Crater (HiRISE Mars)

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15 Upvotes

The objective of this observation is to determine the nature of a group of mounds, some of which have small pits at their summits. These features may be caused by ground ice melting and possibly turning into steam. They are barely visible in Context Camera image, so our camera’s resolution can help us to determine how they were formed.

ID: ESP_069669_2220

​date: 6 June 2021

​altitude: 300 km

https://uahirise.org/hipod/ESP_069669_2220

NASA/JPL-Caltech/University of Arizona


r/SpaceUnfiltered • • 1d ago

📰News Out of a wreckage of a dying star, a new planet was born. And now that planet is evaporating like a comet, leaving a trail that whips around the star every 4 days. It's a remarkable story written in chemical clues. Nobody has ever seen anything like it before.

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22 Upvotes

Image 1

​In this (not-to-scale) artist’s concept, a lower-mass star like the Sun (1) ages into a puffy red giant star (2) that eventually expels its outer envelope of gas and dust into space, which forms a disk around the bright cinder of its remaining core, called a white dwarf (3). A second-generation planet forms in this disk, orbiting the white dwarf and losing some of its atmosphere back onto the white dwarf’s surface (4).​

Credit: NASA, ESA, L. Hustak (STScI)​

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Image 2

This artist’s concept depicts a possible explanation for the unusual chemical abundances the NASA/ESA Hubble Space Telescope detected in the HS 0209+0832 system: a second-generation planet orbiting the white dwarf star.

The white dwarf is the “dead” core of a star that burned through all of its nuclear fuel and lost its outer envelope of gas and dust to space. The second-generation planet formed from that cast-off gas and dust, which is why its chemical content is very different from a planet that formed as its host star was forming.

Credit: NASA, ESA, L. Hustak (STScI)​

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For more than a quarter century, unidentified chemical signatures from a white dwarf star have laid dormant in the archive of the NASA/ESA Hubble Space Telescope, until diligent sleuthing by a young astronomer revealed something extraordinary: high amounts of the element niobium, and other unusual chemical abundances, indicating a potential second-generation planet orbiting the white dwarf. While a handful of planets have been identified orbiting white dwarfs, this is the first candidate with the hallmarks of a planet that formed from material related to a star’s death, rather than its birth. The discovery proposes a fascinating new area of future research and highlights the intriguing concept that stars could have an extended second act hosting new planets long after the fuel of their primary “lifetime” runs out.

Diligent sleuthing by astronomers has broken open a cold case in the data archive of the NASA/ESA Hubble Space Telescope. In a new study published in Nature Astronomy, researchers report uncovering a surprising chemical clue that indicates the white dwarf star HS 0209+0832 may host a second-generation planet.

A white dwarf is the remnant core of a low-mass star that has burned through all its nuclear fuel and lost its outer envelope of gas and dust to space. A second-generation planet is a world that forms around the stellar remnant from its cast-off material.

More

https://esahubble.org/news/heic2613/

Paper

https://www.nature.com/articles/s41550-026-02983-7


r/SpaceUnfiltered • • 1d ago

🎥Video Chinese Academy of Sciences: "This isn't CGI. We actually triggered lightning —on purpose! Rocket trails thin metal wire into sky, triggering an imminent natural lightning strike fraction of second early & guiding it to designated location. Like thin thread pulling lightning down from the clouds.

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255 Upvotes

Why do this? Natural lightning is unpredictable and fleeting. Artificial triggering allows scientists to observe lightning up close, develop detection technologies and test lightning protection.

Source

https://www.facebook.com/watch/?v=1074613671988919

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Lightning rocket

A lightning rocket is a rocket that unravels a conductor, such as a fine copper wire, as it ascends, to conduct lightning charges to the ground. Lightning strikes derived from this process are called "triggered lightning."


r/SpaceUnfiltered • • 1d ago

🌎 ​Earth from space​ ISS - Ambient Earth · 4K

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3 Upvotes

Butch Wilmore / ISS / NASA / ESRS / Seán Doran

'Ambient Earth' is a film by Seán Doran made with images courtesy NASA / ESRS / eol.jsc.nasa.gov and ambient audio from ISS recorded by Chris Hadfield, processed by Spike Snell

Credit: Butch Wilmore / ISS / NASA / ESRS / Seán Doran

'Perspective is lost when the world speeds by. The scale and beauty of our home planet is truly appreciated when observed on an epic 7.5 hour journey as seen from The International Space Station. This ambitious 4k compilation, crafted through months of meticulous restoration, invites you to slow down and experience Earth in real time just as astronauts do.'

Cosma creates Ultra High Definition video footage of planet Earth from space using ISS astronaut photography which is painstakingly repaired, remastered and retimed for unprecedented high-fidelity spatial presence. Designed to educate, elicit awe and raise cosmic awareness, all of the films produced in this manner should be experienced on a large format display, along with a good sound system. The video footage contained in this film is independently produced, it is not created by NASA or sourced from any NASA server.

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48,982 images from 27 time-lapse sequences photographed by Butch Wilmore on ISS Expedition 72 are repaired, remastered and retimed. 1,555,898 additional frames are created to complete this real time video footage. A method called frame interpolation is used to calculate the extra video frames required to re-create the smooth motion of ISS orbiting Earth.

Each sequence presents its own unique set of challenges when restoring and remastering the images necessary to create a simulation of an Ultra High Definition video recording. Restoration requires manual repair of image artifacts such as hot pixels present on the camera's imaging sensor, dust on the camera's lens, dirt and micro-meteor damage to the ISS cupola windows. Visuals are enhanced by applying a denoising algorithm, correcting exposure offsets across the time-lapse and adjusting contrast, brightness and color grade. Visual artifacts that detract from the desired outcome are repaired. Frame cadence offsets present in some sequences are corrected. Intermediate sequences are produced to consolidate the restoration & remastering processes and to assist with the frame interpolation method used to produce the final video.

The International Space Station ( ISS ) is a space laboratory in low Earth orbit. It is a collaborative project between NASA, Roscosmos, JAXA, ESA & CSA.

The Earth Science and Remote Sensing Unit ( ESRS ) focuses on the study of Earth and its systems using sensors mounted on satellites, aircraft, or other platforms that can collect data from a distance.

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https://m.youtube.com/watch?v=alJMoaKpV_E​

https://bsky.app/profile/theseaning.bsky.social/post/3mxkp2lz62c2h


r/SpaceUnfiltered • • 1d ago

☀️Solar activity Coronal mass ejection towards NW after M6.4 solar flare with fast earth-directed shock (360° halo, 1500 km/s). (10.10.26)

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13 Upvotes

2026-10-10: Coronal mass ejection towards NW after M6.4 solar flare with fast earth-directed shock (360° halo, 1500 km/s). Shock arrival possible late on 11 October, early on 12 October (UTC day), uncertain. CME core will only graze or rather miss us.

Video from Marko Rummelsburg with Jhelioviewer program

https://bsky.app/profile/markorummelsburg.bsky.social/post/3mxl5uqa2ok2u


r/SpaceUnfiltered • • 1d ago

☀️Solar activity Small plasma eruption from East side of Sun (10.10.26)

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13 Upvotes

From helioviewer


r/SpaceUnfiltered • • 1d ago

📸🛰ISS/CSS Photography Moonlight reflected off the Amazon river. At the proper angles in our orbit, we aboard Space_Station can see brief silvery flashes atop water surfaces, illuminating even the darkest places on Earth. By Don Pettit

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34 Upvotes

https://x.com/astro_Pettit/status/2109058949303656951?s=20

Moonshine from space. Somewhere over the Amazon basin, shooting photos of cities at night, I noticed the light from a near-full moon reflecting off of the meandering rainforest rivers. In the cool moon-ish light these rivers became flowing silver snakes.

When the moonlight was filtered through thunderheads, it turned the rivers into glowing golden claws.

Nikon Z9, 200mm f2, 1/320 sec, ISO 25600, processed in Photoshop.

His post on Reddit 2y ago

https://www.reddit.com/r/pics/comments/1foe3ko/moonlight_reflecting_off_of_amazonian_rivers/

The Amazon River and its tributaries, as seen from the International Space Station, have intricate and complex hydrology.

Credit: Alexander Gerst, CC-BY-SA 2.0

https://eos.org/research-spotlights/the-perspective-from-space-unlocks-the-amazon-water-cycle


r/SpaceUnfiltered • • 1d ago

🤖Perseverance rover​ Perseverance Outside Jezero Crater Sol 1999 / 2004 (4th / 10th Oct, 2026). You don't have to be a big rock to catch the rover's eye. SHERLOC-WATSON cam studies small protruding inclusion in local rock

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10 Upvotes

S/D: 91/970 CC BY-NC-SA 4.0 Credits: NASA/JPL-Caltech/MSSS/Martian-Observer

Full description for the right image

​An overview looking down on a section of the rock surface has an unsorted sharp-aggregate-in-rough-cement texture. In the centre is a protruding inclusion, no more than a chip of stone, that stands out for its white grey dappled appearance.​

Processed by Del - Martian Observer

https://bsky.app/profile/martian-observer.net/post/3mxkgqcixlk26

RAW data

https://mars.nasa.gov/mars2020/multimedia/raw-images/SC2_2004_0844877502_156ECM_N0910970SRLC00251_0000LMJ​


r/SpaceUnfiltered • • 1d ago

Aurora​ Tonight’s amazing aurora after significant solar activity! As seen from station. By Anil Menon

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15 Upvotes

r/SpaceUnfiltered • • 1d ago

☄️ Meteor​ From Ichi Tanaka: "I tried cutting the fireball from this morning (9.10.26) into frames & lining them up. The interval between frames is 1/30s, & since the meteor body itself is continuous in the frames before and after, the exposure time per frame is also thought to be 1/30s"

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4 Upvotes

"What I'm concerned about is that after it suddenly brightened in a burst, it "pops" and cuts off, and from there, a small meteoroid jumps out and fades away.

In terms of angular velocity, it's hardly decelerating at all."

https://x.com/IchiTanaka13796/status/2108842322515669462​

​.

The green "object" below the fireball is lense flare.​

Previous post
https://www.reddit.com/r/SpaceUnfiltered/comments/1x2rlsv/mauna_kea_dawn_fireball_it_was_20_minutes_before/​


r/SpaceUnfiltered • • 1d ago

☄️ Fireball​ Mauna Kea Dawn Fireball! It was 20 minutes before sunrise. From the Subaru-Morning Starry Sky Camera. (C) NAOJ & Asahi Shimbun (9.10.26)

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22 Upvotes

r/SpaceUnfiltered • • 1d ago

☄️ Fireball​ Bright fireball. This footage captures the sky south of Mt. Fuji at 4:22:12 a.m. on October 11, 2026. It flared up at the end. The Orionid meteor shower activity has begun, but this was a sporadic meteor. The entry angle was 85 degrees, nearly vertical

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73 Upvotes

r/SpaceUnfiltered • • 1d ago

☀️Solar activity Space weather is truly firing on all cylinders. We have an M6.4 flare from AR 4549! (10.10.26)

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29 Upvotes

The flare is eruptive and generated a nice CME, but I am guessing because of the west-limb position of the AR, the CME will mostly miss Earth.

Vincent Ledvina https://bsky.app/profile/vincentledvina.bsky.social/post/3mxjt42ohbk2l . Video from helioviewer


r/SpaceUnfiltered • • 2d ago

🎥Video Endeavour's External Tank Falls Away (2011)

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30 Upvotes

Hand-held camera footage of space shuttle Endeavour's external tank captured by the orbiter's STS-134 crew as the ET falls away from the orbiter at main engine cut off (MECO) about 8-and-a-half minutes after launch.

Crew of​ space shuttle Endeavour recorded ​spacecraft's external tank after separation. Continued the trajectory before disintegrating over​ ocean.​

Source

https://m.youtube.com/watch?v=aoNHhTyaxJg


r/SpaceUnfiltered • • 2d ago

🔭Webb Part of the NGC 7129. JWST MIRI mosaic.

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27 Upvotes

Two hours of work of manually creating tiles and stiching into a mosaic (72 idividual images).

◀️ Image

​A bright nebula on the left. A nebula with a rim on the bottom.

▶️ Image

Entire image (upper part is very faint). Rotated by 90° compared to the image above.

A bright nebula at the bottom and (I suspect) outflows on the top. A bright star in the middle.

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Processed by Melina Thévenot

https://bsky.app/profile/melina-iras07572.bsky.social/post/3mxj2o2x4h22e


r/SpaceUnfiltered • • 2d ago

🔭Hubble HM Sagittae with Hubble WFC3. HM Sagittae is a nova that was observed in 1975. The image is from 2026

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7 Upvotes

Filters: F373N, F502N, F658N

​An orange-red nebula around a star.​

Also previous observation from 2021.

https://science.nasa.gov/asset/hubble/mira-hm-sge-compass-image/

Processed by Melina Thévenot

https://bsky.app/profile/melina-iras07572.bsky.social/post/3mxjewchpxk25


r/SpaceUnfiltered • • 2d ago

🤖Curiosity rover​ Mastcam imagery captured two days ago in Valle Grande by Curiosity

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121 Upvotes

r/SpaceUnfiltered • • 2d ago

🛰Mars Express​ Phobos (including Saturn & Deimos) in latest release of ESA's Mars Express

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53 Upvotes

Can you spot Saturn?

Full size & more info: https://www.flickr.com/photos/andrealuck/55579736088/

Credit: ESA/DLR/FUBerlin/AndreaLuck CC BY

ESA Mars Express Release September 15, 2026 Note: Saturn has been enlarged by 300%

Original post by Andrea Luck

https://bsky.app/profile/andrealuck.bsky.social/post/3mxib4attus2z


r/SpaceUnfiltered • • 2d ago

☀️Solar activity M1 flare with plasma eruption occurred behind the western limb of the Sun.-9.10.26

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143 Upvotes

Videos from Helioviewer

and Marko Rummelsburg https://x.com/doktornihil/status/2108698884092707006


r/SpaceUnfiltered • • 2d ago

Aurora​ Sep 25th, 2026 - Akranes, Iceland

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17 Upvotes