Latest news with #JezeroCrater
Yahoo
2 days ago
- General
- Yahoo
Haunting Image Shows The Moon Deimos From The Surface of Mars
There's not much hustle and bustle on Mars. The red planet is inhabited by no-one that we know of, except the robotic rovers toiling away to excavate its secrets. The only sound you'd hear is the whispering of the wind. There are no crowds, not much in the way of turmoil (unless you happen to get caught in one of Mars's wild, global sandstorms). Nevertheless, a new image taken by Perseverance from its lonely vantage point in the Jezero Crater seems to convey the serenity possible on Mars like no other. It was taken in the liminal pre-dawn darkness, at 4:27 am local time on 1 March 2025. The rover aimed its left Navcam above the horizon, and for a total exposure time of 52 seconds, stared at the sky – specifically, Deimos, the smaller and more distant of the two Martian moons. At just 16 kilometers (10 miles) across, and orbiting at an average distance of around 20,000 kilometers from the Martian surface, Deimos is quite small when viewed from Perseverance's perspective. It looks like a bright star in the sky. Mars has two moons; the other is Phobos. They were named for the sons of god of war Ares, the Greek counterpart for the Roman god Mars; their names mean fear (Phobos) and dread (Deimos). There are lots of mysteries about these little potato-moons. Scientists want to know where they came from, and where they are going. Simulations suggest that Phobos, which orbits Mars closer than any other moon in the Solar System, and whose orbit is shrinking, will one day be torn asunder by the gravity of Mars and become a faint ring around its equator. Deimos, at a much safer distance, is likely to escape this carnage; its fate, however, is not clear. Observations such as this haunting image captured by a lonely robot on the Martian surface are the tiny puzzle pieces scientists use to conduct their painstaking investigations thereon. Stunning Images Reveal The Sun's Surface in Unprecedented Detail The Universe's Most Powerful Cosmic Rays May Finally Be Explained China's Tianwen-2 Launches to Grab First 'Living Fossil' Asteroid Samples
Yahoo
3 days ago
- General
- Yahoo
Listen to the eerie sounds of Mars recorded by a NASA rover
A NASA rover ambling over the red desert planet for the past four years has been recording audio of Mars. In this alien world 156 million miles away in space, even the everyday whispers of wind and mechanical parts are exotic to human ears. Scientists say that's because the Martian atmosphere is about 1 percent as dense as Earth's, which alters the volume, speed, and characteristics of sound. How to describe what Perseverance has heard at Jezero crater? Well, it doesn't not sound like the eerie ambient noise of Stanley Kubrick's 2001: A Space Odyssey, but you can listen for yourself. Like an aspiring DJ or singer-songwriter, Perseverance has a Soundcloud account, where people can experience the latest Martian tracks. NASA shared this week some of the strange audio the rover has captured. You can find a sampling further down in this story. SEE ALSO: A NASA Mars rover looked up at a moody sky. What it saw wasn't a star. Credit: NASA / JPL-Caltech illustration When the rover touched down on Mars in 2021, it didn't just bring cameras, drills, and tubes for rock samples. It also carried two microphones — nothing special, just a couple of off-the-shelf devices anyone could buy online. The only modification NASA made was to attach little grids at the end of the mics to protect them from Martian dust. One of the microphones, mounted on the rover's head, is known as the SuperCam and has recorded most of the audio; another is attached to the body. What they've picked up is changing the way scientists think about the Red Planet. This is the first time humanity has ever been able to listen to the din of another world. "We've all seen these beautiful images that we get from Mars," said Nina Lanza, a Los Alamos National Laboratory scientist, in a NASA video, "but having sound to be able to add to those images, it makes me feel like I'm almost right there on the surface." NASA shared Martian audio in the above post on X. Researchers published the first study of acoustics on Mars in the journal Nature, based on Perseverance's recordings, in 2022. Apparently, the Red Planet is a much quieter place than originally thought, and not just because it's unpopulated. It's so silent, in fact, there was a time the rover team believed the mics had stopped working. But Perseverance just wasn't getting much material from its surroundings. That's largely due to Mars' low-atmospheric pressure, though the pressure can vary with the seasons. The team studying these sounds found that Mars' thin air, composed mostly of carbon dioxide, makes sound waves behave differently. On Earth, sound travels at roughly 767 mph. On Mars, deeper pitches move at about 537 mph, with higher ones traveling a bit faster, at 559 mph. The thin atmosphere also causes sound to drop off quickly. A sound that could be heard from 200 feet away on Earth falls silent after 30 feet on Mars. Higher-pitched tones have an even shorter range. The microphones mounted to Perseverance are off-the-shelf devices anyone could buy off the internet. Credit: NASA / JPL-Caltech "Sounds on Earth have very rich harmonics. You can hear multiple frequencies. It gets a really nice depth to the sound," said Justin Maki, a NASA scientist, in a video. "On Mars, the atmosphere attenuates a lot of those higher frequencies. So you tend to hear the lower frequencies, and it's a much more isolated sound, a little more muted than the sounds we hear on Earth." With this data, scientists have learned that some of their earlier models for how they thought sound should move on Mars missed the mark. "The Martian atmosphere can propagate sound a lot further than we thought it could," Lanza said. Translation: The Red Planet can literally carry a tune.
Yahoo
24-05-2025
- Science
- Yahoo
Perseverance rover rolls onto 'Crocodile' plateau on Mars to hunt for super-old rocks
When you buy through links on our articles, Future and its syndication partners may earn a commission. NASA's Perseverance rover has made to a new region on Mars, which may contain some of the Red Planet's oldest and most interesting rocks. Perseverance landed inside the 28-mile-wide (45 kilometers) Jezero Crater in February 2021, on a mission to search for past signs of Mars life and collect dozens of samples for future return to Earth. The car-sized rover has covered a lot of ground in the past four-plus years, and it has now reached yet another new spot — a plateau of rocky outcrops that the mission team named Krokodillen, after a mountain ridge on Prins Karls Forland island in Norway. (Krokodillen means "crocodile" in Norwegian.) Krokodillen, which covers about 73 acres (30 hectares), is a boundary of sorts between the ancient rocks of Jezero's rim and the plains beyond. Earlier work suggest that it harbors clay minerals, which form in the presence of liquid water. If Perseverance finds more such minerals throughout Krokodillen, it would suggest that the area may have been habitable long ago — an intriguing thought, given the age of the rocks. "The Krokodillen rocks formed before Jezero Crater was created, during Mars' earliest geologic period, the Noachian, and are among the oldest rocks on Mars," Ken Farley, deputy project scientist for Perseverance from the California Institute of Technology in Pasadena, said in a statement on May 19. "If we find a potential biosignature here, it would most likely be from an entirely different and much earlier epoch of Mars evolution than the one we found last year in the crater with 'Cheyava Falls,'" Farley added. Cheyava Falls is an arrowhead-shaped rock that Perseverance studied in 2024. The rover found chemical signatures and structures that are consistent with the activity of ancient microbial life. But such features may also have been produced by geological processes, so they remain potential rather than definitive biosignatures. Related: Scientists find hint of hidden liquid water ocean deep below Mars' surface Indeed, confirming the presence of current or past life on Mars may be too tall a task for Perseverance, given its limited scientific payload. That's why the rover is collecting samples that can be returned to Earth for study in well-equipped labs around the globe. (The future of Mars sample return is currently in doubt, however; the Trump administration's 2026 budget request would cancel the current plan to bring Perseverance's collected material home.) RELATED STORIES —NASA Mars satellite uncovers markings 'like paint dripping down a wall' on Martian surface —NASA rover discovers out-of-place 'Skull' on Mars, and scientists are baffled —Lights on Mars! NASA rover photographs visible auroras on Red Planet for the first time And speaking of sampling: The Perseverance team is implementing a new strategy going forward, according to the Monday statement. The rover will now leave some of its newly filled tubes unsealed, so it can dump out collected samples in favor of potentially more exciting ones if need be. The team is taking this tack because Perseverance is getting low on unsealed tubes and still has a lot of intriguing ground to cover. The rover carries 43 tubes, 38 of which are for collecting samples. (The other five are "witness" tubes that are designed to help the mission team determine if any materials in the collected samples are contaminants from Earth.) Perseverance has filled all but seven of its sample tubes at this point, according to Perseverance acting project scientist Katie Stack Morgan of NASA's Jet Propulsion Laboratory in Southern California. "We have been exploring Mars for over four years, and every single filled sample tube we have on board has its own unique and compelling story to tell," she said in the same statement. "This strategy allows us maximum flexibility as we continue our collection of diverse and compelling rock samples." This article was originally published on
Forbes
22-05-2025
- Science
- Forbes
NASA Perseverance Rover Strikes A Selfie With Mars Dust Devil
NASA's Perseverance took this selfie on May 10 along the rim of the Jezero crater. Unbothered. In its lane. Focused. Dusty. Fabulous. NASA's Perseverance Mars rover took some time away from its science work to snap a superb selfie from its perch on the rim of the Jezero Crater. The rover wasn't alone. A peppy dust devil danced in the background. NASA's Jet Propulsion Lab shared two versions of the rover selfie on May 21. The portraits show the rover parked on a rocky hill. In one shot, the rover 'looks' at the camera with its head-like mast. In the other, it looks toward the ground where a small hole marks a spot where the rover drilled for a rock sample. The photobombing dust devil can be seen in the distance as a light-colored puff near the middle of the image. 'The well-illuminated scene and relatively clear atmosphere allowed us to capture a dust devil located 3 miles to the north in Neretva Vallis,' said Perseverance imaging lead Justin Maki in a statement. The small dark hole in the rock in front of the rover is the borehole made when Perseverance ... More collected its latest sample. The small puff of dust left of center and below the horizon line is a dust devil. NASA shared an annotated version of the image pointing out the dust devil, the sample hole, an American flag on the rover and the rover's tracks behind it. Dust devils are common on Mars. NASA's rovers keep an eye out for dust devil activity. Perseverance even captured extraordinary footage of a larger dust devil consuming a smaller one in January. The rover snapped the selfie on May 10 to celebrate its 1,500th sol on the red planet. A sol is a Martian day. It works out to about 24 hours and 39 minutes, so a sol is slightly longer than an Earth day. This is Perseverance's fifth selfie since it arrived on Mars in early 2021. The rover landed inside the Jezero Crater and has since worked its way up to the crater rim. It's spent about five months exploring an area nicknamed Witch Hazel Hill. The region has delivered some geological surprises, like these 'shocking spherules' Perseverance investigated in March. Taking a selfie on Mars is no easy feat. Perseverance used its Wide Angle Topographic Sensor for Operations and eNgineering camera to snap 59 images that could be stitched together into the full selfie. WATSON is located at the end of the rover's robotic arm. WATSON took three more snaps for the shot where Percy looked down toward the ground. The Perseverance team had to plan out each shot. 'That means we had to make 62 precision movements of the robotic arm,' said Perseverance imaging scientist Megan Wu. 'The whole process takes about an hour, but it's worth it. Having the dust devil in the background makes it a classic. This is a great shot.' Selfies aren't just for fun. The rover team uses them to assess the rover and monitor how much dust has gathered on the vehicle and its instruments. Mars is notoriously dusty. NASA's Opportunity rover and InSight lander succumbed to dust-covered solar panels. Unlike its dearly departed helicopter companion Ingenuity, Perseverance doesn't rely on solar. It's essentially powered by a nuclear battery. Perseverance received a thumbs-up health report from its team. 'After 1,500 sols, we may be a bit dusty, but our beauty is more than skin deep,' said Art Thompson, Perseverance project manager. Thompson said the rover has all the power it needs, that all systems are in the green and that Perseverance is set to 'feed scientific discoveries for years to come.' That's worth a celebratory Mars selfie.
CBS News
21-05-2025
- Science
- CBS News
NASA's Mars Perseverance rover captures new selfie featuring a Martian dust devil
The latest selfie by NASA's Mars Perseverance rover has captured an unexpected guest: a Martian dust devil. Resembling a small pale puff, the twirling dust devil popped up 3 miles behind the rover during this month's photo shoot. Dust devils, a combination of air and dust, are common on Mars. Released Wednesday, the selfie is a composite of 59 images taken by the camera on the end of the rover's robotic arm, according to NASA. This image provided by NASA shows Perseverance taking a selfie on May 10, 2025. NASA via AP It took an hour to perform all the arm movements necessary to gather the images, "but it's worth it," said Megan Wu, an imaging scientist from Malin Space Science Systems, which built the camera. "Having the dust devil in the background makes it a classic," Wu said in a statement. The picture — which also shows the rover's latest sample borehole on the surface — marks 1,500 sols, or Martian days, for Perseverance. That's equivalent to 1,541 days on Earth. Perseverance is covered with red dust, the result of drilling into dozens of rocks. Perseverance, which landed on Mars in 2021, is collecting samples for an eventual return to Earth from Jezero Crater, an ancient lakebed and river delta that could hold clues to any past microbial life. Last month, released images showed a Martian dust devil consuming a smaller one on the surface of the red planet.
