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By NASA
Curiosity Navigation Curiosity Home Mission Overview Where is Curiosity? Mission Updates Science Overview Instruments Highlights Exploration Goals News and Features Multimedia Curiosity Raw Images Images Videos Audio Mosaics More Resources Mars Missions Mars Sample Return Mars Perseverance Rover Mars Curiosity Rover MAVEN Mars Reconnaissance Orbiter Mars Odyssey More Mars Missions Mars Home 2 min read
Curiosity Blog, Sols 4584 – 4585: Just a Small Bump
NASA’s Mars rover Curiosity acquired this image using its Left Navigation Camera on June 27, 2025 — Sol 4582, or Martian day 4,582 of the Mars Science Laboratory mission — at 05:28:57 UTC. NASA/JPL-Caltech Written by Abigail Fraeman, Deputy Project Scientist at NASA’s Jet Propulsion Laboratory
Earth planning date: Friday, June 27, 2025
We weren’t able to unstow Curiosity’s robotic arm on Wednesday because of some potentially unstable rocks under Curiosity’s wheels, but we liked the rocks at Wednesday’s location enough that we decided to spend a sol repositioning the rover so that we’d have another chance today to analyze them. The small adjustment of the rover’s position, or “bump,” as we like to call it during tactical planning, was successful, and we found ourselves in a nice stable pose this morning which allowed us to use our highly capable robotic arm to observe the rocks in front of us.
We will be collecting APXS and MAHLI observations of two targets today. The first, “Santa Elena,” is the bumpy rock that caught our eye on Wednesday. The second, informally named “Estancia Allkamari,” is a patch of nearby sand. We’ll analyze this target to understand if and how the sand composition has changed as we’ve driven across Mount Sharp, and to better help us understand how sand may be contributing to future compositional measurements that cover mixtures of sand and rock. MAHLI and ChemCam will team up to observe a third target named “Ticatica,” which is another bumpy rock nearby that looks like it might have a dark patch on its side.
This is the final weekend of this Martian year when temperature and relative humidity in Gale crater hit the sweet spot where conditions are right for frost to form in the pre-dawn hours. We’re taking this last opportunity to see if we can catch any evidence of frost with the ChemCam laser, shooting a sandy (and hopefully cold) portion of the ground in the pre-dawn hours on a target named “Rio Huasco.” Other activities in the plan include atmospheric monitoring, Mastcam mosaics, including a 20 x 3 mosaic of the large boxwork structures in the distance, and a short drive to the southwest to check out a rocky raised ridge.
For more Curiosity blog posts, visit MSL Mission Updates
Learn more about Curiosity’s science instruments
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Last Updated Jul 01, 2025 Related Terms
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By USH
Some time ago, while visiting the Grand Canyon in Arizona, a photographer captured several short video clips of the landscape. In one of those clips, an unusual anomaly was discovered.
The original footage is only 1.9 seconds long, but within that moment, something remarkable was caught on camera. An unidentified aerial phenomenon (UAP) flashed across the frame, visible for less than a second, only noticeable when the video was paused and analyzed frame by frame.
The object was moving at an astonishing speed, covering an estimated two to three miles in under a second, far beyond the capabilities of any conventional aircraft, drone, or helicopter.
This isn’t the first time such anomalous flying objects have been observed. Their characteristics defy comparison with known aerial technology.
Some skeptics have proposed that the object might have been a rock thrown into the canyon from behind the camera. However, that explanation seems unlikely. Most people can only throw objects at speeds of 10 to 20 meters per second (approximately 22 to 45 mph). The velocity of this object far exceeded that range, and its near-invisibility in the unedited video suggests it was moving much faster.
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By USH
The photograph was captured by the Mast Camera (Mastcam) aboard NASA’s Curiosity rover on Sol 3551 (August 2, 2022, at 20:43:28 UTC).
What stands out in the image are two objects, that appear strikingly out of place amid the natural Martian landscape of rocks and boulders. Their sharp edges, right angles, flat surfaces, and geometric symmetry suggest they may have been shaped by advanced cutting tools rather than natural erosion.
Could these ancient remnants be part of a destroyed structure or sculpture? If so, they may serve as yet another piece of evidence pointing to the possibility that Mars was once home to an intelligent civilization, perhaps even the advanced humanoid beings who, according to some theories, fled the catastrophic destruction of planet Maldek and sought refuge on the Red Planet.
Objects discovered by Jean Ward Watch Jean Ward's YouTube video on this topic: HereSee original NASA source: Here
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By NASA
X-ray: NASA/CXC/CfA/Stroe, A. et al.; Optical: PanSTARRS; Radio: ASTRON/LOFAR; Image Processing: NASA/CXC/SAO/N. Wolk New observations from NASA’s Chandra X-ray Observatory and other telescopes have captured a rare cosmic event: two galaxy clusters have collided and are now poised to head back for another swipe at each other.
Galaxy clusters are some of the largest structures in the Universe. Held together by gravity, they are monster-sized collections of hundreds or thousands of individual galaxies, massive amounts of superheated gas, and invisible dark matter.
The galaxy cluster PSZ2 G181.06+48.47 (PSZ2 G181 for short) is about 2.8 billion light-years from Earth. Previously, radio observations from the LOw Frequency ARray (LOFAR), an antenna network in the Netherlands, spotted parentheses-shaped structures on the outside of the system. In this new composite image, X-rays from Chandra (purple) and ESA’s XMM-Newton (blue) have been combined with LOFAR data (red) and an optical image from Pan-STARRs of the stars in the field of view.
These structures are probably shock fronts — similar to those created by jets that have broken the sound barrier — likely caused by disruption of gas from the initial collision about a billion years ago. Since the collision they have continued traveling outwards and are currently separated by about 11 million light-years, the largest separation of these kinds of structures that astronomers have ever seen.
Colliding galaxy clusters PSZ2 G181.06+48.47 (Labeled).X-ray: NASA/CXC/CfA/Stroe, A. et al.; Optical: PanSTARRS; Radio: ASTRON/LOFAR; Image Processing: NASA/CXC/SAO/N. Wolk Now, data from NASA’s Chandra and ESA’s XMM-Newton is providing evidence that PSZ2 G181 is poised for another collision. Having a first pass at ramming each other, the two clusters have slowed down and begun heading back toward a second crash.
Astronomers made a detailed study of the X-ray observations of this collision site and found three shock fronts. These are aligned with the axis of the collision, and the researchers think they are early signs of the second, oncoming crash.
The researchers are still trying to determine how much mass each of the colliding clusters contains. Regardless, the total mass of the system is less than others where galaxy clusters have collided. This makes PSZ2 G181 an unusual case of a lower-mass system involved in the rare event of colliding galaxy clusters.
A paper describing these results appears in a recent issue of The Astrophysical Journal (ApJ) and is led by Andra Stroe from the Center for Astrophysics | Harvard & Smithsonian (CfA) and collaborators. It is part of a series of three papers in ApJ. The second paper is led by Kamlesh Rajpurohit, also of CfA, and the third paper is led by Eunmo Ahn, from Yonsei University in the Republic of Korea.
NASA’s Marshall Space Flight Center in Huntsville, Alabama, manages the Chandra program. The Smithsonian Astrophysical Observatory’s Chandra X-ray Center controls science operations from Cambridge, Massachusetts, and flight operations from Burlington, Massachusetts.
Read more from NASA’s Chandra X-ray Observatory Learn more about the Chandra X-ray Observatory and its mission here:
https://www.nasa.gov/chandra
https://chandra.si.edu
Visual Description
In this release, a composite image illustrates a dramatic cosmic story unfolding 2.8 billion light years from Earth. Presented both with and without labels, the image details the fallout when two galaxy clusters collide.
At the center of the image are the colliding galaxy clusters, which together are known as PSZ2 G181. This combined cluster somewhat resembles an irregular violet peanut shell, with bulbous ends linked by a tapered middle. Inside each bulbous end are several glowing dots; some of the galaxies within the clusters. The violet peanut shape is tilted at a slight angle, surrounded by a blue haze of X-ray gas.
Far from the bulbous ends, at our upper left and lower right, are two blotchy, thick red lines. These are probably shock fronts, similar to those created by jets that have broken the sound barrier. Bracketing the combined galaxy cluster, these shock fronts were caused by the initial collision about a billion years ago. They are currently separated by 11 million light-years.
New data from the Chandra and XMM-Newton observatories suggests that PSZ2 G181 is poised for another powerful cosmic event. Having already taken one swipe at each other, the two clusters within are once again on a collision course.
News Media Contact
Megan Watzke
Chandra X-ray Center
Cambridge, Mass.
617-496-7998
mwatzke@cfa.harvard.edu
Lane Figueroa
Marshall Space Flight Center, Huntsville, Alabama
256-544-0034
lane.e.figueroa@nasa.gov
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Last Updated Jun 04, 2025 Related Terms
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By NASA
Curiosity Navigation Curiosity Home Mission Overview Where is Curiosity? Mission Updates Science Overview Instruments Highlights Exploration Goals News and Features Multimedia Curiosity Raw Images Images Videos Audio Mosaics More Resources Mars Missions Mars Sample Return Mars Perseverance Rover Mars Curiosity Rover MAVEN Mars Reconnaissance Orbiter Mars Odyssey More Mars Missions Mars Home 3 min read
Sols 4541–4542: Boxwork Structure, or Just “Box-Like” Structure?
NASA’s Mars rover Curiosity acquired this image using its Left Navigation Camera on May 14, 2025 — Sol 4539, or Martian day 4,539 of the Mars Science Laboratory mission — at 00:57:26 UTC. NASA/JPL-Caltech Written by Ashley Stroupe, Mission Operations Engineer at NASA’s Jet Propulsion Laboratory
Earth planning date: Wednesday, May 14, 2025
Today we came into another strange and interesting workspace (see image above) that is as exciting as the one we had on Monday. This is our first arrival at a potential boxwork structure — a series of web-like, resistant ridges visible in orbital images that we have been looking forward to visiting since we first saw them. Today’s observations will be the first step to figure out if these ridges (at least the one in front of us) is part of a boxwork structure. Unfortunately, we can’t quite reach their targets safely today because one of the rover’s front wheels is perched on a small pebble and might slip off if we move the arm. Instead, we will take a lot of remote sensing observations and reposition the rover slightly so that we can try again on Friday.
But before repositioning, Curiosity will start off by taking a huge Mastcam mosaic of all terrain around the rover to help us document how it is changing along our path and with elevation. Mastcam then will look at “Temblor Range,” which is a nearby low and resistant ridge that also has some rover tracks from where we previously crossed it. Mastcam is also imaging a trough that is similar to the other troughs we have been seeing locally and that have multiple possible origins. Then, Mastcam will image the AEGIS target from the prior plan. ChemCam is taking a LIBS observation of “Glendale Peak,” a rugged top portion of the ridge defining the potential boxwork structure, which is to the right of the workspace, and an RMI mosaic of Texoli butte. Mastcam follows up the ChemCam observation of Glendale Peak by imaging it.
In parallel with all the imaging is our monthly test and maintenance of our backup pump for the Heat Rejection System (the HRS) The HRS is a fluid loop that distributes the heat from the rover’s power source to help keep all the subsystems within reasonable temperatures. We need to periodically make sure it stays in good working order just in case our primary pump has issues.
After all the imaging, the rover will bump 30 centimeters backwards (about 12 inches) to come down off the pebble and put the interesting science targets in the arm workspace. This should leave us in a position where it is safe to unstow the arm and put instruments down on the surface.
On the second, untargeted sol of the plan, we have some additional atmospheric science including a large dust-devil survey, as well as a Navcam suprahorizon movie and a Mastcam solar tau to measure the dust in the atmosphere. We finish up with another autonomous targeting of ChemCam with AEGIS.
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Last Updated May 19, 2025 Related Terms
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