Stuck valve stalls NASA's 2nd attempt to fuel giant Artemis 1 moon rocket - Space.com | Canada News Media
Connect with us

Science

Stuck valve stalls NASA's 2nd attempt to fuel giant Artemis 1 moon rocket – Space.com

Published

 on


NASA’s second attempt to fuel its Artemis 1 moon mission megarocket hit another snag on Monday (April 4) due to a valve issue on ground equipment. 

A stuck vent valve high up on the mobile launcher structure supporting the Artemis 1’s Space Launch System rocket  at Launch Pad 39B of NASA’s Kennedy Space Center forced NASA to scrub the Artemis 1 test after fueling began on Monday, agency officials said. The valve is use to relieve pressure from the rocket’s core stage during fueling.

“Due [to] the vent valve issue, the launch director has called off the test for the day,” Jeremy Parsons, NASA’s deputy director for ground systems, wrote in a Twitter update after the scrub. “The team is preparing to offload LOX (liquid oxygen) and will begin discussing how quickly the vehicle can be turned around for the next attempt.”

The vent valve was on the 160-foot (49 meters) level of the mobile launcher, which serves as both a gantry and launch platform for the SLS, according to Parsons. NASA officials said the problem occurred in a panel that controls the valve, leaving technicians unable to open the valve.

“Given the time to resolve the issue as teams were nearing the end of their shifts, the launch director made the call to stop the test for the day,” NASA wrote in a statement Monday. “A crew will investigate the issue at the pad, and the team will review range availability and the time needed to turn systems around before making a determination on the path forward.”

Monday’s fueling attempt was NASA’s second try to fill the core stage of Artemis 1’s 322-foot-tall (98 m) SLS rocket with 700,000 gallons (2.6 million liters) of super-chilled liquid oxygen and liquid hydrogen propellant in what the agency calls a “wet dress rehearsal.” The test, which began April 1, features a full launch countdown rehearsal, including the fueling process. 

Live updates: NASA’s Artemis 1 moon mission
Related: NASA’s Artemis 1 moon mission explained in photos 

NASA tried to fuel the Artemis 1 moon rocket on Sunday (April 3) but stopped before propellant loading began due to a problem with pressurization on the mobile launcher that keeps hazardous gases out of enclosed areas where technicians work. On Monday, technicians had loaded about 50% of the liquid oxygen needed for the fueling test before standing down for the day, Parsons wrote on Twitter

Monday’s test initially aimed to simulate a launch countdown that would end at 2:40 p.m. EDT (11840 GMT), but delays related to the rocket’s nitrogen gas supplier stalled that work. Once that issue was solved, NASA was aiming for a simulated launch time of 6:02 p.m. EDT (2202 GMT) before the stuck valve prompted the scrub.

It is unclear if NASA will be able to recycle for a third fueling attempt on Tuesday (April 5) or have to stand down to replenish its propellant supplies and allow its pad crews and launch controllers time to rest. Meanwhile, a private mission to the International Space Station is waiting in the wings for its time to fly.

Related stories:

SpaceX is aiming to launch four private astronauts to the International Space Station on the Ax-1 mission for the Houston company Axiom Space. A SpaceX Falcon 9 rocket will launch the mission from Pad 39A, which is located near Artemis 1’s Pad 39B. 

SpaceX and Axiom Space originally planned to launch the Ax-1 mission on April 3, but pushed it back to April 6 to allow NASA time for the Artemis 1 wet dress rehearsal. After NASA’s Artemis 1 fueling delays on Sunday, SpaceX pushed the launch back again, this time to Friday (April 8). 

Whether the Ax-1 mission stays on April 8 or is delayed again depends on NASA’s plans for the Artemis 1 fueling test. In yet another launch traffic wrinkle, SpaceX is also preparing to launch four more astronauts to the space station for NASA on April 20 as part its Crew-4 mission. That flight will launch three NASA astronauts and one European Space Agency astronaut to the orbiting lab. 

But Crew-4 must wait for the Ax-1 mission to launch (because both launch from Pad 39A), which in turn is awaiting NASA’s completion of the Artemis 1 wet dress rehearsal. As it is, Crew-4 is currently scheduled to launch on April 20 and has already seen its own schedule delays.

Email Tariq Malik at tmalik@space.com or follow him @tariqjmalik. Follow us @SpacedotcomFacebook and Instagram.

Adblock test (Why?)



Source link

Continue Reading

Science

The body of a Ugandan Olympic athlete who was set on fire by her partner is received by family

Published

 on

 

NAIROBI, Kenya (AP) — The body of Ugandan Olympic athlete Rebecca Cheptegei — who died after being set on fire by her partner in Kenya — was received Friday by family and anti-femicide crusaders, ahead of her burial a day later.

Cheptegei’s family met with dozens of activists Friday who had marched to the Moi Teaching and Referral Hospital’s morgue in the western city of Eldoret while chanting anti-femicide slogans.

She is the fourth female athlete to have been killed by her partner in Kenya in yet another case of gender-based violence in recent years.

Viola Cheptoo, the founder of Tirop Angels – an organization that was formed in honor of athlete Agnes Tirop, who was stabbed to death in 2021, said stakeholders need to ensure this is the last death of an athlete due to gender-based violence.

“We are here to say that enough is enough, we are tired of burying our sisters due to GBV,” she said.

It was a somber mood at the morgue as athletes and family members viewed Cheptegei’s body which sustained 80% of burns after she was doused with gasoline by her partner Dickson Ndiema. Ndiema sustained 30% burns on his body and later succumbed.

Ndiema and Cheptegei were said to have quarreled over a piece of land that the athlete bought in Kenya, according to a report filed by the local chief.

Cheptegei competed in the women’s marathon at the Paris Olympics less than a month before the attack. She finished in 44th place.

Cheptegei’s father, Joseph, said that the body will make a brief stop at their home in the Endebess area before proceeding to Bukwo in eastern Uganda for a night vigil and burial on Saturday.

“We are in the final part of giving my daughter the last respect,” a visibly distraught Joseph said.

He told reporters last week that Ndiema was stalking and threatening Cheptegei and the family had informed police.

Kenya’s high rates of violence against women have prompted marches by ordinary citizens in towns and cities this year.

Four in 10 women or an estimated 41% of dating or married Kenyan women have experienced physical or sexual violence perpetrated by their current or most recent partner, according to the Kenya Demographic and Health Survey 2022.

The Canadian Press. All rights reserved.

Source link

Continue Reading

News

The ancient jar smashed by a 4-year-old is back on display at an Israeli museum after repair

Published

 on

 

TEL AVIV, Israel (AP) — A rare Bronze-Era jar accidentally smashed by a 4-year-old visiting a museum was back on display Wednesday after restoration experts were able to carefully piece the artifact back together.

Last month, a family from northern Israel was visiting the museum when their youngest son tipped over the jar, which smashed into pieces.

Alex Geller, the boy’s father, said his son — the youngest of three — is exceptionally curious, and that the moment he heard the crash, “please let that not be my child” was the first thought that raced through his head.

The jar has been on display at the Hecht Museum in Haifa for 35 years. It was one of the only containers of its size and from that period still complete when it was discovered.

The Bronze Age jar is one of many artifacts exhibited out in the open, part of the Hecht Museum’s vision of letting visitors explore history without glass barriers, said Inbal Rivlin, the director of the museum, which is associated with Haifa University in northern Israel.

It was likely used to hold wine or oil, and dates back to between 2200 and 1500 B.C.

Rivlin and the museum decided to turn the moment, which captured international attention, into a teaching moment, inviting the Geller family back for a special visit and hands-on activity to illustrate the restoration process.

Rivlin added that the incident provided a welcome distraction from the ongoing war in Gaza. “Well, he’s just a kid. So I think that somehow it touches the heart of the people in Israel and around the world,“ said Rivlin.

Roee Shafir, a restoration expert at the museum, said the repairs would be fairly simple, as the pieces were from a single, complete jar. Archaeologists often face the more daunting task of sifting through piles of shards from multiple objects and trying to piece them together.

Experts used 3D technology, hi-resolution videos, and special glue to painstakingly reconstruct the large jar.

Less than two weeks after it broke, the jar went back on display at the museum. The gluing process left small hairline cracks, and a few pieces are missing, but the jar’s impressive size remains.

The only noticeable difference in the exhibit was a new sign reading “please don’t touch.”

The Canadian Press. All rights reserved.

Source link

Continue Reading

News

B.C. sets up a panel on bear deaths, will review conservation officer training

Published

 on

 

VICTORIA – The British Columbia government is partnering with a bear welfare group to reduce the number of bears being euthanized in the province.

Nicholas Scapillati, executive director of Grizzly Bear Foundation, said Monday that it comes after months-long discussions with the province on how to protect bears, with the goal to give the animals a “better and second chance at life in the wild.”

Scapillati said what’s exciting about the project is that the government is open to working with outside experts and the public.

“So, they’ll be working through Indigenous knowledge and scientific understanding, bringing in the latest techniques and training expertise from leading experts,” he said in an interview.

B.C. government data show conservation officers destroyed 603 black bears and 23 grizzly bears in 2023, while 154 black bears were killed by officers in the first six months of this year.

Scapillati said the group will publish a report with recommendations by next spring, while an independent oversight committee will be set up to review all bear encounters with conservation officers to provide advice to the government.

Environment Minister George Heyman said in a statement that they are looking for new ways to ensure conservation officers “have the trust of the communities they serve,” and the panel will make recommendations to enhance officer training and improve policies.

Lesley Fox, with the wildlife protection group The Fur-Bearers, said they’ve been calling for such a committee for decades.

“This move demonstrates the government is listening,” said Fox. “I suspect, because of the impending election, their listening skills are potentially a little sharper than they normally are.”

Fox said the partnership came from “a place of long frustration” as provincial conservation officers kill more than 500 black bears every year on average, and the public is “no longer tolerating this kind of approach.”

“I think that the conservation officer service and the B.C. government are aware they need to change, and certainly the public has been asking for it,” said Fox.

Fox said there’s a lot of optimism about the new partnership, but, as with any government, there will likely be a lot of red tape to get through.

“I think speed is going to be important, whether or not the committee has the ability to make change and make change relatively quickly without having to study an issue to death, ” said Fox.

This report by The Canadian Press was first published Sept. 9, 2024.

The Canadian Press. All rights reserved.

Source link

Continue Reading

Trending

Exit mobile version