adplus-dvertising
Connect with us

Science

Starliner spacecraft cleared for undocking and re-entry – Spaceflight Now – Spaceflight Now

Published

 on


Boeing’s Starliner spacecraft docked at the International Space Station. Credit: NASA

Astronauts on the International Space Station closed the hatch to Boeing’s Starliner spacecraft Tuesday, and ground teams used the lab’s robotic arm to inspect the capsule’s heat shield to clear the test vehicle for undocking Wednesday and return to Earth for a late afternoon landing in New Mexico.

The Boeing-owned spacecraft launched last Thursday and docked at the space station Friday night, reaching the orbiting research complex for the first time after officials aborted a test flight in 2019. The unpiloted demonstration mission is set to conclude Wednesday with an automated departure from the space station, followed a few hours later by a parachute-assisted, airbag cushioned landing at White Sands Space Harbor.

NASA astronauts Kjell Lindgren and Bob Hines closed the forward hatch to the Starliner spacecraft at 3 p.m. EDT (1900 GMT) Tuesday. Hines became the first person to enter a Starliner spacecraft in orbit Saturday, when the station crew opened the hatch and began three days of inspections and checkouts inside the capsule’s crew cabin.

Lindgren and Hines, who arrived at the station on a SpaceX Dragon capsule last month, performed several tests inside the Starliner capsule during its docked stay at the space station. They performed communications checks inside the Starliner spacecraft, unpacked about 500 pounds of cargo, then replace it with about 600 pounds of cargo for return to Earth.

The Starliner is scheduled to undock from the station at 2:36 p.m. EDT (1836 GMT) Wednesday, then back away to a safe distance from the complex before a 58-second braking burn at 6:05 p.m. EDT (2205 GMT) to drop out of orbit.

The crew module, designed for reuse, will jettison its disposable service module at 6:08 p.m. EDT (2208 GMT). The service module houses the ship’s abort engines, solar panels, radiators and other equipment.

The service module will burn up during re-entry over the Pacific Ocean, while the Starliner crew module — containing an instrumented test dummy nicknamed “Rosie” — will orient itself using 12 control thrusters to point its blunt end forward to face a flow of super-heated air as it plunges into the atmosphere.

Astronauts Jessica Watkins, Bob Hines, Kjell Lindgren, and Samantha Cristoforetti on the International Space Station Tuesday. Credit: NASA TV / Spaceflight Now

Traveling at 25 times the speed of sound, the 15-foot-wide (4.6-meter) Starliner capsule will encounter the first discernible traces of the atmosphere at 6:33 p.m. EDT (4:33 p.m. MDT; 2233 GMT). Temperatures outside the capsule will reach as hot as 3,000 degrees Fahrenheit (1,650 degrees Celsius).

An ablative base heat shield, ceramic tiles and thermal blankets will protect the capsule as it heads for White Sands.

The human-rated spaceship will fly over Mexico, passing just west of El Paso before triggering its parachute deployment sequence at an altitude of around 30,000 feet (9 kilometers).

The Starliner will jettison its upper heat shield and deploy a pair of drogue parachutes. Then mortars will fire and pilot chutes will pull three main parachutes from their bags at 6:45 p.m. EDT (4:45 p.m. MDT; 2245 GMT). Less than a minute later, the capsule will release its bottom heat shield, allowing airbags to inflate at around 3,000 feet (900 meters).

Touchdown is scheduled for 6:49 p.m. EDT (4:49 p.m. MDT; 2249 GMT) at White Sands Space Harbor, part of the U.S. Army White Sands Missile Range. The first Starliner test flight, which was cut short by software problems in 2019, successfully landed at White Sands.

The facility was used by NASA in 1982 for the landing of the space shuttle Columbia in 1982. Columbia touched down on an unpaved landing strip at White Sands to conclude NASA’s third space shuttle mission.

Boeing’s Starliner is the first U.S. crew-rated capsule designed to return from orbit for a landing on the ground. Russia’s Soyuz capsule is also designed for a ground landing, but SpaceX’s Dragon spacecraft and NASA’s Orion deep space crew capsule — like the Apollo command module from the 1960s and 1970s — splash down in the ocean at the end of their missions.

Forecasters predict favorable weather Wednesday for landing of the Starliner spacecraft at White Sands. Boeing’s backup landing site for this mission is Willcox Playa in Arizona. The Starliner program has also surveyed potential landing sites at Dugway Proving Ground in Utah and Edwards Air Force Base in California, in addition to two possible landing zones at White Sands.

The OFT-2 mission is a precursor before NASA clears astronauts to fly on the next Starliner mission to the International Space Station. After landing, Boeing will transport the Starliner capsule back to NASA’s Kennedy Space Center for refurbishment and use on a future crew mission.

Email the author.

Follow Stephen Clark on Twitter: @StephenClark1.

Adblock test (Why?)

728x90x4

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