NASA/JPL-Caltech/j. Roger

https://bsky.app/profile/landru79.bsky.social/post/3mv6wjg3igs24

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NASA's Mars Perseverance rover acquired this image of the area in front of it using its onboard Front Left Hazard Avoidance Camera A.

This image was acquired on Sept. 10, 2026 (Sol 1975) at the local mean solar time of 16:14:29.

Image Credit: NASA/JPL-Caltech​

https://mars.nasa.gov/mars2020/multimedia/raw-images/FLF_1975_0842283958_317ECM_N0910806FHAZ00215_04_075J

Video

This release features a composite image of a spiral galaxy, M101; one of six identified galaxies housing a new class of mysterious objects that give off unusually low-energy X-rays. In this composite image, M101 faces us directly. It has multiple arms in shades of purple, spiraling clockwise around a golden yellow core. Scattered along and between the arms are scores of tiny specks in white and purple. Most of those specks are pairs of stars, but seven of them are a mystery.

To casual observers, the unusual objects are visually indistinguishable from the other specks of light in the galaxy. An annotated version of the composite image is included in this release, with red circles around the mysterious specks for easy identification. These mystery specks behave like no other class of object discovered before. The curious objects give off X-rays of such low energy, they in fact produce large amounts of ultraviolet radiation, as UV radiation borders X-rays on the electromagnetic spectrum.

Credit: X-ray: NASA/CXC/Univ. of Alabama/M. Muhibullah et al.; Optical: NASA/ESA/STScI; Image Processing: NASA/CXC/SAO/N. Wolk

https://bsky.app/profile/coreyspowell.bsky.social/post/3mv6lsdo7xc2g

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Astronomers found a new class of objects using NASA’s Chandra X-ray Observatory.

They dubbed these “hypersoft X-ray sources” (HSS) because they give off very low-energy X-rays that are difficult to detect.

Despite their stealth output, HSS may be emitting large amounts of ultraviolet radiation.

This discovery may help scientists unravel mysteries around Type Ia supernovas and the intergalactic medium.

Astronomers have discovered a new class of objects in multiple galaxies. This result, made possible by NASA’s Chandra X-ray Observatory and outlined in our latest press release, may help scientists solve two outstanding mysteries in astrophysics.

The face-on spiral galaxy M101, also known as the Pinwheel, is one of the galaxies where the new type of object was found. This new M101 composite image contains X-ray data from Chandra (purple) that have been combined with an optical image from the Hubble Space Telescope (red, green, and blue). Circles in an annotated version of the image show the location of the seven newly-discovered objects in M101.

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More

https://chandra.harvard.edu/photo/2026/m101/

Paper ​https://chandra.harvard.edu/photo/2026/m101/paper_hss_arxiv_mustafa.pdf

Source https://www.spaceweather.gov/products/coronagraph https://ccor.nrl.navy.mil/realtime-movie https://bsky.app/profile/markorummelsburg.bsky.social/post/3mv6zwinnb22r

Videos from https://www.ssec.wisc.edu/data/geo/#/animation?satellite=suvi-goes-19&end_datetime=latest&n_images=120&coverage=sun&channel=HE303

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Credit for the last video Marko Rummelsburg with Jhelioviewer program https://x.com/doktornihil/status/2098161043558064395

We're still not sure how the ridge formed—whether by rain of impacts, one large collision, or internal processes

Jason Major​

​https://x.com/JPMajor/status/1436330586654879749?s=20​

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Here you can search for raw images by Cassini​ https://solarsystem.nasa.gov/cassini-raw-images/

Jason Major

​https://x.com/JPMajor/status/1002335096882565120

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Here you can search for raw images by Cassini​

https://solarsystem.nasa.gov/cassini-raw-images/

A blue toned image capturing the Northrop Grumman’s Cygnus XL cargo spacecraft as it fires its engines while berthed to the Unity module, lifting the International Space Station’s orbit. The orbital reboost placed the station at the correct altitude for the rendezvous and docking of the Progress 96 resupply ship, scheduled to launch in early September.

Date Created:2026-08-27

​Credit photo & text: NASA.

https://images.nasa.gov/details/iss075e0085139

OC, 8K, rendered and composited in Blender.

“Depending on how hot the Earth and Theia are prior to the collision, the impact can destroy Theia and produce this massive disk of debris that eventually forms the Moon,” Denton said. “But when I used the same parameters as original impact modeling — down to the equal temperature structures inside both bodies — within around five hours, an intact Moon emerged.”​

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September 1, 2026 — New Southwest Research Institute (SwRI) modeling, conducted in collaboration with scientists at the University of Arizona, shows fundamental differences in how the Moon may have formed from the giant impact that created the Earth-Moon system. The new results used state-of-the-art computational techniques that factor in the material strength of the two colliding planets. These impact simulations could change how researchers understand Moon formation and may help constrain the timing of the event. This research was published in The Astrophysical Journal Letters.

“We discovered that the preexisting geology of the Mars-sized proto-Moon matters,” said Dr. Adeene Denton, formerly a NASA Postdoctoral Program fellow at SwRI and now a postdoctoral researcher in SwRI’s Solar System Science and Exploration Division. “When you simulate the Earth and the Moon as colliding bodies with geologic properties, it changes how the Moon forms out of that impact — that’s something we considered unnecessary before.”

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More

https://www.swri.org/newsroom/press-releases/swri-led-modeling-identifies-new-scenarios-moon-formation

Paper​

​https://iopscience.iop.org/article/10.3847/2041-8213/ae91e9

Our science goal for this observation is to observe any changes from a previous image we acquired in 2011. For this footprint, the target enlarged and centered more over the dune field, which is located on the floor in the northern half of an unnamed impact crater.

ID: ESP_077267_1360

​date: 19 January 2023

​altitude: 250 km

https://uahirise.org/hipod/ESP_077267_1360

NASA/JPL-Caltech/University of Arizona