logo
Second Time's a Charm for Zena Cardman as She Heads to the Space Station

Second Time's a Charm for Zena Cardman as She Heads to the Space Station

New York Times5 days ago
The last time Zena Cardman was named commander of a NASA mission, her ride to space took off without her.
Ms. Cardman is scheduled to finally reach orbit on Thursday, when the next group of astronauts heads to the International Space Station, part of the usual rotation of crew. She is the commander of the Crew-11 mission — the 11th time that SpaceX, the rocket company run by Elon Musk, has launched four astronauts to the space station for NASA as part of a crew rotation.
NASA will begin coverage of the launch at 8 a.m. Eastern time, with liftoff from NASA's Kennedy Space Center in Florida expected at 12:09 p.m. Ms. Cardman and her three crewmates — Michael Fincke of NASA, Kimiya Yui of Japan and Oleg Platonov of Russia — will be riding in a SpaceX Crew Dragon capsule atop a Falcon 9 rocket.
The forecast predicts a 90 percent chance of favorable weather.
This is a trip that Ms. Cardman thought she would have made last year as the commander of Crew-9.
'Right now, it still feels a little bit surreal,' she said in an interview three weeks ago. She said she thought it would continue to feel that way until T+1 in the countdown — one second after the rocket had left the launchpad.
Last summer, Ms. Cardman's plans were scrambled by the troubled test flight of Boeing's Starliner. NASA decided that Suni Williams and Butch Wilmore, the two astronauts who traveled to the I.S.S. in the Starliner, would return to Earth another way, and that set off a domino effect for the crews of later missions.
Want all of The Times? Subscribe.
Orange background

Try Our AI Features

Explore what Daily8 AI can do for you:

Comments

No comments yet...

Related Articles

A Nuclear Reactor on the Moon? Come Again?
A Nuclear Reactor on the Moon? Come Again?

New York Times

time16 minutes ago

  • New York Times

A Nuclear Reactor on the Moon? Come Again?

The acting administrator of NASA has issued a directive to fast-track efforts to put a nuclear reactor on the moon. 'To properly advance this critical technology to be able to support a future lunar economy, high power energy generation on Mars, and to strengthen our national security in space, it is imperative the agency move quickly,' Sean Duffy, the secretary of transportation whom President Trump appointed last month as temporary leader of the space agency, wrote in the directive, which was sent out on Thursday. Politico was first to report on the directive. In it, Mr. Duffy cites plans by China and Russia to put a reactor on the moon by the mid-2030s as part of a partnership to build a base there. If they were first, China and Russia 'could potentially declare a keep-out zone' that would inhibit what the United States could do there, Mr. Duffy said. The directive calls for the appointment of a NASA official to oversee the effort within 30 days and for a request seeking proposals from commercial companies to be issued within 60 days. The reactor will be required to generate at least 100 kilowatts of electrical power — enough for about 80 households in the United States — and to be ready to launch in late 2029. One lunar day lasts four weeks on Earth — two weeks of continual sunshine followed by two weeks of cold darkness. That harsh cycle makes it difficult for a spacecraft or a moon base to survive with just solar panels and batteries. Current exploration efforts, both by NASA and by the Chinese-Russian partnership, are focusing on the south polar region, where the sun is never high over the horizon and the bottoms of some craters lie in permanent shadows. Over the years, NASA has financed nuclear reactor research, including the awarding of three $5 million contracts in 2022 to companies developing initial designs. Those designs were smaller, producing 40 kilowatts and weighing under six metric tons. Want all of The Times? Subscribe.

Old Mars rovers can learn new tricks! NASA's Curiosity marks 13-year milestone with new science capabilities
Old Mars rovers can learn new tricks! NASA's Curiosity marks 13-year milestone with new science capabilities

Yahoo

timean hour ago

  • Yahoo

Old Mars rovers can learn new tricks! NASA's Curiosity marks 13-year milestone with new science capabilities

Can you teach an old Mars rover new tricks? NASA says the answer is a resounding 'yes.' Following its landing on Mars 13 years ago, Curiosity has been given new capabilities, allowing it to do science on the Red Planet while expending less energy from its batteries. Essentially, it can now multitask. 'We were more like cautious parents earlier in the mission,' Reidar Larsen, of NASA's Jet Propulsion Laboratory in Southern California, said in a statement. 'It's as if our teenage rover is maturing, and we're trusting it to take on more responsibility. As a kid, you might do one thing at a time, but as you become an adult, you learn to multitask.' Larsen led a group of engineers who developed the new capabilities for their six-wheeled teen. The agency said improvements to Curiosity will allow the rover to make the most of its energy source, which is a type of nuclear battery known as a radioisotope thermoelectric generator also used by the Perseverance rover. Managing the rover's daily power budget as the plutonium in the battery decays, Curiosity can now safely talk to a local orbiter while driving, moving its robotic arm, or snapping images. Curiosity can now decide to take a nap if it gets its work done early, ensuring there is less recharging necessary before the next day. 'Even actions that trim just 10 or 20 minutes from a single activity add up over the long haul, maximizing the life of the MMRTG for more science and exploration down the road,' the lab said in a release. These developments build on years of work developing other capabilities, including enhanced driving ability, the ability for Curiosity's head to capture panoramas without a color filter wheel on one of its 'Mastcam' cameras, a new way for Curisotiy's arm drill to collect rock and regolith samples, and an algorithm to help reduce wear and tear on the rover's wheels. The rover has recently been exploring formations of hardened ridges that were believed to have been created by underground water billions of years ago, finding rocks that were formed by the minerals deposited by ancient water flows and wind. 'A big mystery is why the ridges were hardened into these big patterns and why only here,' Curiosity's project scientist Ashwin Vasavada said earlier this year. 'As we drive on, we'll be studying the ridges and mineral cements to make sure our idea of how they formed is on target.' Solve the daily Crossword

Researchers figure out what's caused devastating sea star epidemic
Researchers figure out what's caused devastating sea star epidemic

Yahoo

time2 hours ago

  • Yahoo

Researchers figure out what's caused devastating sea star epidemic

A study published Monday offers clarity on a more than decade-long marine mystery: What has been killing the velvety sunflower sea star? In 2013, something began ravaging sea stars along the West Coast, turning them into decaying, fragmented carcasses. Over the next few years, the wasting disease (SSWD) killed billions of animals along the shore, transforming entire marine ecosystems. A network of researchers formed to focus on recovery. One species was hit especially hard: Pycnopodia helianthoides, more commonly known as the sunflower sea star. Scientists estimate the global population plummeted by 94% since 2013. California alone lost about 99% of its sunflower sea stars. For over a decade, nobody knew what was responsible. In their paper in Nature Ecology & Evolution, researchers have now identified the culprit behind the devastating epidemic — and with it, a path forward for restoration. 'This was a big deal for us,' said Alyssa Gehman, a marine disease ecologist at Hakai Institute and the University of British Columbia and senior author on the study. 'When we started these experiments, I knew we would learn more, but I honestly wasn't convinced we would actually find the causative agent of disease.' The breakthrough came during a routine meeting between Gehman and two collaborators, Grace Crandall and Melanie Prentice. They had recently tested whether heat-treated coelomic fluid — the internal body fluid of a sea star — could still trigger the disease when injected into a healthy sea star. When it didn't, and the injected sea stars stayed healthy, it confirmed that the disease was being caused by something that was alive. To find out what that "something" was, the team turned to a set of techniques that reveals which genes are being expressed by what microorganisms. When they compared healthy and infected animals, one group consistently stood out—the Vibrios, a type of bacteria commonly found in marine environments. Knowing there are many Vibrios, the researchers were curious whether the wasting sickness could be tied to one in particular. Prentice ran the species-level analysis, and the result floored them. 'The whole list was Vibrio pectinocida. And it was in all of our six stars and it was in none of our controls,' Gehman said. It was "mind-blowingly clear" that this bacteria was causing the disease, she said. For California's kelp forests, and the conservation groups trying to save them, this news is a major turning point. Sunflower sea stars are considered a keystone species, meaning they are critical in regulating the stability and diversity of their ecosystems. One of their most important roles is controlling purple sea urchin populations, a species with a notoriously voracious appetite. 'They can mow down a kelp forest and then actually remain in that ecosystem without a food source,' said Prentice, a marine biologist and study co-author. 'They enter almost like a zombie state until the kelp regrows, and then they eradicate it again.' Sunflower sea stars used to prey on the urchins, keeping them in check. But when wasting disease effectively wiped out their main predator, the sea urchins exploded in number, decimating kelp forests and transforming once-lush underwater habitats into so-called 'urchin barrens.' 'Kelp forests are the most important ecosystem on our coast because they house over 800 species of animals,' said Nancy Caruso, marine biologist and founder of the nonprofit Get Inspired. 'Essentially, they're the condos and apartment complexes of the animals that live on our coastline. When they disappear, the animals have no place to live.' Kelp forests also filter water, store carbon, and protect coastal communities from storms and erosion, making them an ally in addressing climate change, Prentice said. Since the 2013 outbreak, areas like Northern California have lost more than 95% of their kelp forest cover. Several sites are still considered ecological collapse zones. Some scientists trying to recover sunflower sea stars see the finding as a strong guide for future research — and efforts to boost the decimated keystone species. For example, it could help address concerns California wildlife officials have had that stars bred in captivity might have the disease and carry it into wild waters if they are moved, conservationists said. Prentice is currently developing something similar to a COVID rapid test that could help screen animals and seawater for the presence of Vibrio pectinocida before they're introduced into the ocean. That beats the cumbersome process of monitoring them to make sure they're healthy enough to be released. 'That's going to be powerful not just for research, but for management,' she said. 'Now we can actually test animals before we move them, or test the water at a potential outplanting site and say, is this a good place for reintroduction?' Researchers also plan to investigate whether certain stars are resistant to the disease, opening the door to breeding animals that are more resilient. Could exposing them to a low dose of the disease do the trick? Already there have been promising strides in conservation. Starting in 2019, Jason Hodin, a senior research scientist at the University of Washington's Friday Harbor Laboratories, spearheaded an effort to see if the hefty stars could be raised in captivity. They could, and the success paved the way for a network of scientists trying to recover the species. Last year, his team became the first (and currently only) to unleash lab-bred stars into the ocean, dispatching 10 one-year-olds and 10 two-year-olds near the dock of their lab on San Juan Island. None have been seen sick or dying. At least three of the two-year-olds were spotted just a few months ago. It's 'not only showing that the stars can thrive in the wild, but that if you put them into an area that they like, then they stick around,' he said. Now he's hoping for approval from Washington's wildlife agency to release stars in a small urchin barren developing on the west side of the island where his lab is located. The idea is to see if introducing them where urchins have taken over, and where the kelp is getting hit, can help restore the kelp. That work could begin this fall. Scientists in California are moving in the same direction, but haven't yet planted stars in the wild. Researchers with the Nature Conservancy may release stars in cages in Monterey Bay as soon as September, replicating a step Hodin's team took before sending them out on their own. They're waiting on approval from the California Department of Fish and Wildlife. There also have been hopeful sightings of wild stars in California waters. Recently, a sunflower sea star was spotted in Sonoma County, which Hodin estimated is the furthest south anyone has spotted them in seven years. 'It takes a lot of stars to make a healthy population, so just having a few around isn't necessarily enough to get a good sort of population going,' Hodin said, 'but at least it's a sign that the species is still around and that with some assistance, we might be able to bolster these populations.' At the Aquarium of the Pacific in Long Beach, which cares for some of the surviving sunflower stars, the new findings could help reshape priorities. 'It sharpens our focus on what it might take to reintroduce these animals in a way that is thoughtful, informed, and sustainable,' said Johnathan Casey, the aquarium's curator of fish and invertebrates. 'With each new piece of the puzzle, we feel we're getting closer to a future where sunflower stars can once again thrive along our coastline.' Sunflower sea stars used to be everywhere — on sand, rocks, kelp beds, and seagrass beds. For Gehman, that's the point. She hopes the findings help people realize that even the most abundant species can disappear very quickly. This story originally appeared in Los Angeles Times.

DOWNLOAD THE APP

Get Started Now: Download the App

Ready to dive into a world of global content with local flavor? Download Daily8 app today from your preferred app store and start exploring.
app-storeplay-store