Tag Archives: Finds
NASA spacecraft finds solar ‘cannonballs’ may have stripped Mars of its water — proving decades-old theory
This artist's concept depicts the early Martian environment (right) with liquid water and a thicker atmosphere versus the cold, dry environment seen today (left).(Image credit: NASA’s Goddard Space Flight Center)After nearly a decade in orbit, NASA's MAVEN spacecraft has, for the first time, directly observed the process that scientists had long suspected was responsible for stripping Mars of its atmosphere.
The findings, published May 28 in the journal Science Advancescould help answer a longstanding question about how Mars transformed from a potentially habitable world with rivers and lakes into the mostly-frozen desert we see today.
Although Mars today is dry, cold and virtually airless, its surface is carved with unmistakable evidence of a wetter past. Features resembling ancient river valleys, lake beds, and minerals that only form in the presence of water point to long-lived lakes, possibly...
Survey finds AI has taken hold in AEC
Technology tamfitronics An article from Dive Brief ...
NASA watchdog finds quality control problems with Boeing SLS work
NASA Space Technology WASHINGTON — NASA’s internal watchdog sharply criticized the work Boeing is doing on the next version of the Space Launch System, finding serious lapses in quality control.In a report released Aug. 8, NASA’s Office of Inspector General (OIG) said there were significant issues with Boeing’s work on the Block 1B version of SLS being done at the Michoud Assembly Facility in New Orleans, which it attributed to a lack of an acceptable quality management system and trained workforce.NASA used the Defense Contract Management Agency (DCMA) to monitor Boeing’s work on the SLS core and upper stages at Michoud. “According to DCMA officials, Boeing’s process for addressing contractual noncompliance has been ineffective, and the company has generally been nonresponsive in taking corrective actions when the same quality control issues reoccur,” the OIG report...
NASA Finds Mars Rock That Might Reveal Evidence of Ancient Life
NASA Space Technology NASA scientists have now discovered a single place on Mars with signs it once hosted all three of life’s main ingredients: liquid water, energy, and organic molecules.On July 21, NASA’s Perseverance rover spotted a strange rock partially buried in a dry riverbed. White streaks hinted water once flowed through the stone, and Perseverance detected organic molecules — the building blocks of life — within. But what really stood out was a smattering of black and white spots along the rock’s surface. On Earth, such “leopard spots” are mainly known to form in two ways: from microbes, or through chemical reactions that can provide fuel for life. Above – Leopard spots on Cheyava Falls A close-up of the Mars rock, nicknamed “Cheyava Falls”, showing its distinctive spots. These “leopard spots” are related to...
