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Another Starship Test Ends in an Explosion – Universe Today

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Today, SpaceX experienced another explosion at their South Texas Launch Site in Boca Chica, Texas. Once again, the explosion occurred during a cryogenic pressure test, where a prototype was pressurized with liquid nitrogen to see how it held up. This time around, it was the test tank for the 7th Starship prototype (SN7), which was being deliberately pressurized to the point where it would fail – aka. “tested to failure”.

This was the second cryogenic pressure test to failure with the SN7 test tank, the previous of which took place about a week ago (June 15th, 2020). The purpose was to test a new type of stainless steel (Steel 304L) and a new manufacturing technique SpaceX has been trying out. By testing this steel to failure with their test tank, they intend to find out if it is a better fit for the final Starship design than the 300 series they’ve been using until now.

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Much like the test that happened on June 15th, the second pressure test took place in the morning after ambient testing was completed the night before. After popping a leak in the upper dome, the tank exploded, releasing liquid nitrogen and ice particles also across the facility. The test tank was then repaired and resealed so it could undergo a second round of ambient and pressure testing last night and this morning.

This latest test was captured by the many live streams that monitor the Boca Chica testing facility twenty-four hours a day, which includes NASA Spaceflight’s own Mary Pointer (aka. @BocaChicaGal). The live stream event also featured a panel NASA Spaceflight members, including Chris Bergin (@Chris B), Jack Beyer (@thejackbeyer), Das Valdez (@KSpaceAcademy), and Michael Baylor (@nextspaceflight).

Things began in earnest about an hour later with the test tank releasing liquid nitrogen from its top, which slowly intensified. Almost three hours and after live coverage began (2h53m24s), the panel noticed an unusual amount of liquid nitrogen venting from the test tank following by nitrogen ice falling off the tank walls. Speculation began that the tank had sprung a leak, as with the previous test.

At 11:37 am, almost three hours after the live stream event began (2h59m21s), Mary can be heard saying “and there it goes!” The tank burst from the bottom, hopped about ten meters (33 ft) into the air, and then collapsed on its side. The entire facility was covered in heavy clouds of icy nitrogen particles, which began cascading outwards from the site.

Chris tweeted news of the explosion shortly thereafter via NASA Spaceflight’s official Twitter feed, showing a fourteen-second clip of the explosion with the caption: “RIP SN7 Test Tank. Thanks for the data!” A little while later, the panel confirmed that the test tank had traveled vertically as a result of the explosion, prompting the cheeky observation: “10 meter hop. Hopper: Nice try, Junior!”

This, of course, is a reference to the Starship Hopper (aka. Starhopper) vehicle, which completed hop testing last summer. These tests, where a single Raptor engine was integrated into a scaled-down prototype, concluded with the Starhopper successfully flying to an altitude of 150 m (500 ft), moving laterally, and then making a soft landing on another pad.

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Like the repeated tests using SN hull prototypes, the purpose here is to test the technology and manufacturing methods that will go into the creation of the Starship and Super Heavy launch system. This rapid-prototyping iterative approach allows SpaceX to rigorously check all the different elements of the flight system before flight tests beings.

Once they are confident that an SN can pass muster, SpaceX hopes to conduct a 150 m (500 ft) hop testing with a single-engine prototype. Once that is complete, the company will proceed with a 20 km (12 mi) hop test – as well as a supersonic reentry and controlled landing – using a three-engine prototype.

Alongside the development of the Super Heavy booster, this will be the last step before a full-scale orbital flight using six Raptor engines takes place, followed by the finalizing of the Starship‘s design and the start of commercial production.

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

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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.

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

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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.

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

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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.

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