Connect with us

Science

Boeing’s Starliner Won't Meet Up With Space Station After Failure to Reach Proper Orbit – Gizmodo

Published

 on


Artistic conception of Boeing’s CST-100 Starliner.
Image: Boeing

Update 11:15 a.m. ET: NASA and Boeing officials shared more details about the anomaly at a press conference this morning, which opened with NASA Administrator Jim Bridenstine saying, “This is in fact why we test.”

As he and his colleagues explained, it’s still too early to be sure, but the problem appears to be related to a software automation glitch. During separation from the Atlas V rocket, for reasons that aren’t yet clear, Starliner switched to the wrong clock. By not having the correct time, Starliner mistakenly believed it needed to perform an orbital insertion burn. Accordingly, the spacecraft “tried to maintain a control that it wouldn’t normally have done,” and it burned excessive fuel as a result, said Bridenstine. This forced the flight team to rule out the planned docking with the ISS.

Advertisement

The NASA chief noted that, had a crew been on board, they would have been safe and capable of operating the vehicle themselves. Perhaps ironically, it was the lack of human control that resulted in the error, showing the limitations of uncrewed testing.

“Had we been on board, we could’ve given the flight team more options,” said NASA astronaut Mike Fincke at the press conference. His colleague NASA astronaut Nicole Mann agreed, saying astronauts could have taken manual control of the thrusters or performed a de-orbit, among many other tasks. “That’s our job—that’s what we’re trained to do,” she said, adding: “We don’t have any safety concerns.”

When Starliner went off the rails, the flight team attempted to send backup commands to the spacecraft using the Tracking and Data Relay Satellite System (TDRSS). But, “we were between TDRSS satellites,” said Bridenstine, which made a link impossible. At the press conference, Jim Chilton, senior vice president of the Space and Launch division of Boeing Defense, Space & Security (BDS), said, “We found ourselves in a place where it was hard to get that link in.”

Bridenstine said it was premature to know if this setback would delay a future Starliner crewed mission to the ISS, but he made it clear that the successful docking of an uncrewed spacecraft is not a requirement for moving forward. The Space Shuttle missions, he said, involved crews that had to dock with various spacecraft for the very first time. This is a strong hint that the mission will move forward without much delay and that a crewed mission aboard Starliner is still very much in the cards.

Advertisement

Indeed, it appears that everything else went right with this mission, from the performance of the Atlas V rocket to the performance of Starliner itself, software glitch notwithstanding. The crew cabin, though empty, is operating as planned, according to the NASA and Boeing officials.

That said, this test mission is not over. Later today, the spacecraft will make a series of burns to raise its orbit higher, and it’s expected to make an atmospheric re-entry in about 48 hours, landing at White Sands Space Harbor in New Mexico.

Advertisement

The original article appears below.

Early Friday morning, Boeing launched its uncrewed CST-100 Starliner from Cape Canaveral in Florida, but the spacecraft experienced an “off-nominal” orbital insertion that will prevent it from rendezvousing with the International Space Station. It’s a disappointing setback to Boeing’s aspirations to eventually deliver astronauts to the ISS on behalf of NASA.

Advertisement

All seemed well at first, as the uncrewed CST-100 Starliner departed Cape Canaveral this morning atop an Atlas V rocket, blasting off at 6:36 a.m. ET. Around 30 minutes into the launch, however, it became clear that the spacecraft did not reach its intended orbit, and it won’t be able to rendezvous with the International Space Station as planned due to lack of fuel, according to NASA chief Jim Bridenstine.

Advertisement

As Bridenstine explained in a series of tweets, Starliner experienced a “Mission Elapsed Time” anomaly, which made the spacecraft believe “it was in an orbital insertion burn, when it was not.” As a result, Starliner burned more fuel than it was supposed to, which will now prevent it from meeting up with the ISS. That said, Starliner is currently in a “safe and stable configuration,” according to a Boeing press release.

Jonathan McDowell, an astronomer at the Harvard-Smithsonian Center for Astrophysics, shared some insight into the incident in a tweet, saying the anomaly wouldn’t have posed a risk to human life.

Advertisement

This is definitely discouraging news. Boeing’s CST-100 Starliner is part of NASA’s Commercial Crew Development program, which is seeking to restore America’s ability to independently deliver astronauts to space—something the U.S. hasn’t been able to do since the retirement of the Space Shuttle program in 2011. Had this mission gone well, Boeing and NASA could have proceeded toward the next step, namely a crewed launch early next year. It’s unclear how today’s setback might influence that timeline.

Advertisement

NASA will be holding a press conference at 9:30 a.m. today, at which time we’ll learn more about this incident. We will update this post accordingly, so stay tuned.

Let’s block ads! (Why?)



Source link

Continue Reading

Science

Large meteor lights up skies in Norway – CTV News

Published

 on


HELSINKI —
Norwegian experts say an unusually large meteor was visible over large parts of southern Scandinavia and illuminated southeast Norway with a powerful flash of light for a few seconds as many observers were reported to also hear a roaring sound afterwards.

“The meteor appeared at 1:08 a.m. on the night of July 25 and was visible for approximately for 5 seconds,” said the network said, which had posted a video on the phenomenon on its Twitter site.

Sightings of meteors, space rocks that burn brightly after entering the Earth’s atmosphere at high speed, aren’t uncommon over Norway and the Norwegian Meteor Network has a number of cameras continuously monitoring the sky.

A meteor that survives passage to the ground is known as a meteorite.

Preliminary data suggested a meteorite may have hit Earth in a large forested area, Finnemarka, not far from Oslo, the Norwegian Meteor Network said.

Adblock test (Why?)



Source link

Continue Reading

Science

One in 10 young Black adults have contracted COVID-19 in Canada: survey – Montreal Gazette

Published

 on


It’s almost three times as much as the general population.

Article content

At least one in 10 young Black adults across Canada has reported contracting the coronavirus during the pandemic — a rate that is two and a half times that of the general population, a new survey has found.

Advertisement

Article content

Researchers from McGill University and the Black Community Resource Centre of Montreal commissioned the Léger polling firm to conduct a national survey in January of 346 Black-identifying Canadians between the ages of 18 and 35. Most of the respondents of the online survey came from Ontario, 43 per cent, followed by Quebec at 35 per cent.

The survey sought to assess family and peer support among young Black adults during the twin crises of the pandemic and the Black Lives Matter movement following the choking death of George Floyd by a police officer.

“Regarding participants’ experiences with the COVID-19 pandemic, 10 per cent reported having contracted the virus and 36 per cent reported that someone they knew personally had contracted the (coronavirus),” the study notes. “Furthermore, 36 per cent of participants reported being an essential worker — for example, nurses, physicians, psychologists, etc — and another 35 per cent reported that a family member was an essential worker.”

Advertisement

Article content

Richard Koestner, one of the authors of the study and the director of the McGill Human Motivation Lab, said the 10-per-cent figure among Black Canadians is likely an under-estimate. The preprint of the study is under review by the Journal of Black Psychology.

To date, testing has confirmed COVID-19 in 3.75 per cent of the Canadian population, according to the latest government figures. In Quebec, the rate is 4.38 per cent.

The findings of the study add to a body of research that the pandemic has disproportionately harmed racialized communities around the world. Koestner and his colleagues alluded to U.S. research that found that COVID-19 infection rates in Black communities have been twice as high and death rates three times as high as the general population.

Advertisement

Article content

“There is growing concern that racial and ethnic minority communities around the world are experiencing a disproportionate burden of morbidity and mortality from (COVID-19),” conclude the authors of a separate study that examined the impact of the pandemic on U.S. veterans.

And in a study released this month by the Public Health Agency of Canada, the authors renew calls for the collection of racial data not only to better study COVID-19 but to go “beyond the scope of the pandemic to identify disparities in health care and find solutions to minimize this gap.”

“Increased risk of COVID-19 infection has frequently been linked with socioeconomic factors such as poor housing and precarious employment,” the authors add. “The intersection of race, socioeconomic status and health is of particular importance to racialized persons, who consistently report higher rates of working poverty, below-standard housing and lower income.”

Advertisement

Article content

Seeta Ramdass, a longtime patient-rights advocate in Montreal, noted that unconscious bias often creeps into health care. She cited as an example the pulse oximeter placed on a patient’s finger to detect oxygen saturation in the blood. Such devices are considered less accurate when measuring black and brown skin.

“The refusal and failure to collect sociocultural data is systemic racism,” Ramdass said. “By failing to acknowledge and to document the inequitable experiences of racialized and marginalized people, how can you even begin to put the corrective measures in place that will make society more inclusive and responsive toevery person of every community?”

  1. A new study looked into how the coronavirus pandemic affected Canada's Black population specifically.

    The grim impact of COVID-19 on Black Canadians

  2. As of mid-February, Quebec expects more than 700,000 vaccine doses over next seven weeks.

    Montreal groups to call for release of race-based COVID-19 data

aderfel@postmedia.com

twitter.com/Aaron_Derfel

All our coronavirus-related news can always be found at montrealgazette.com/tag/coronavirus.

Sign up for our email newsletter dedicated to local COVID-19 coverage at montrealgazette.com/coronavirusnews.

Help support our local journalism by subscribing to the Montreal Gazette here.

Advertisement

Comments

Postmedia is committed to maintaining a lively but civil forum for discussion and encourage all readers to share their views on our articles. Comments may take up to an hour for moderation before appearing on the site. We ask you to keep your comments relevant and respectful. We have enabled email notifications—you will now receive an email if you receive a reply to your comment, there is an update to a comment thread you follow or if a user you follow comments. Visit our Community Guidelines for more information and details on how to adjust your email settings.

Adblock test (Why?)



Source link

Continue Reading

Science

NASA's Hubble Space Telescope has discovered water vapor on Jupiter's ocean moon Ganymede for the first time – Yahoo News

Published

 on


Ganymede, a moon of Jupiter and the largest moon in the Solar System, 2001. Photo12/Universal Images Group via Getty Images

Astronomers have discovered evidence of water vapor in the atmosphere of Jupiter’s moon Ganymede for the first time.

Ganymede, the largest moon in the solar system, is covered in an icy crust. Scientists believe Ganymede may have a liquid ocean 100 miles beneath its surface, and that such an ocean could host aquatic alien life.

On Monday NASA announced that, by looking through the last two decades of data from the Hubble Space Telescope, researchers had discovered evidence of water vapor in the Jupiter moon’s thin atmosphere. This water probably doesn’t come from the underground ocean, though. Instead, it’s likely ice vaporizing from the moon’s surface.

Even though it doesn’t say much about the moon’s potential for alien life, this water vapor adds to scientists’ understanding of Ganymede’s atmosphere. Previously, they only knew that it contained oxygen.

“So far only the molecular oxygen had been observed,” Lorenz Roth of the KTH Royal Institute of Technology in Stockholm, Sweden, who led the team who found the vapor, told NASA. “This is produced when charged particles erode the ice surface.”

The research and datasets were published in the journal Nature Astronomy.

This is a developing story. Please check back for updates.

Read the original article on Business Insider

Adblock test (Why?)



Source link

Continue Reading

Trending