Nasa to re-test mega Moon rocket after failure of first attempt


Sarwat Nasir
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Nasa will re-test its mega Moon rocket, after failing to complete a first attempt last month.

The Space Launch System (SLS) was taken back to the garage for repairs in April, so engineers could fix a faulty helium check valve and the source of a hydrogen leak.

The space agency had rolled out the rocket and the Orion spacecraft to a launch pad in Florida for fuelling and a practice launch countdown, in a process known as a wet dress rehearsal.

However, after three failed attempts, the world's most powerful rocket was taken back to the Vehicle Assembly Building for repairs.

While the rocket did make some progress during the test, complete fuelling and pressurisation did not take place, neither did the countdown sequence that allows engineers to measure important details.

The SLS will be brought again to the launch pad at Kennedy Space Centre on June 6, with another test attempt planned for June 19.

“Engineers successfully completed work on items identified during the previous wet dress rehearsal tests, including replacing and testing an upper stage check valve and fixing a small leak within the tail service mast umbilical ground plate housing,” said Nasa on its website.

“Teams also completed some tasks originally scheduled to take place in the Vehicle Assembly Building after wet dress rehearsal.”

After the test, Nasa hopes to launch the rocket as part of the Artemis 1 mission.

The mission will be the first under the Artemis programme, which seeks to build a sustainable human presence on the Moon and land the next man, first woman and first person of colour on the lunar surface.

The test flight was expected to take place in the summer, but because the wet dress rehearsal has not been completed yet, it will likely take place later this year.

“The rehearsal is the final test needed before launch, and calls for Nasa to test the system, including operations to load propellant into the rocket’s tanks, conduct a full launch countdown and demonstrate the ability to recycle the countdown clock,” said Nasa.

The tanks will also be drained to give scientists an opportunity to practise the timelines and procedures they will use for launch, the US space agency said.

During launch, the SLS will take off with 3,991 tonnes of thrust, soaring at speeds of 40,233 kilometres per hour in about eight minutes to reach space. It will deliver Orion into its intended orbit, where it will begin its journey towards the Moon.

The spacecraft will fly 100 kilometres above the Moon’s surface and then use its gravitation force to be captured into an opposite orbit about 70,000km from the Moon.

It will stay there for about six days to collect data and to allow mission control to measure the spacecraft’s performance.

The launch of Artemis 2 is planned for 2024 and includes a crewed mission that will orbit the Moon.

Artemis 3, the first human lunar mission under the programme, has been delayed until 2025.

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The smuggler

Eldarir had arrived at JFK in January 2020 with three suitcases, containing goods he valued at $300, when he was directed to a search area.
Officers found 41 gold artefacts among the bags, including amulets from a funerary set which prepared the deceased for the afterlife.
Also found was a cartouche of a Ptolemaic king on a relief that was originally part of a royal building or temple. 
The largest single group of items found in Eldarir’s cases were 400 shabtis, or figurines.

Khouli conviction

Khouli smuggled items into the US by making false declarations to customs about the country of origin and value of the items.
According to Immigration and Customs Enforcement, he provided “false provenances which stated that [two] Egyptian antiquities were part of a collection assembled by Khouli's father in Israel in the 1960s” when in fact “Khouli acquired the Egyptian antiquities from other dealers”.
He was sentenced to one year of probation, six months of home confinement and 200 hours of community service in 2012 after admitting buying and smuggling Egyptian antiquities, including coffins, funerary boats and limestone figures.

For sale

A number of other items said to come from the collection of Ezeldeen Taha Eldarir are currently or recently for sale.
Their provenance is described in near identical terms as the British Museum shabti: bought from Salahaddin Sirmali, "authenticated and appraised" by Hossen Rashed, then imported to the US in 1948.

- An Egyptian Mummy mask dating from 700BC-30BC, is on offer for £11,807 ($15,275) online by a seller in Mexico

- A coffin lid dating back to 664BC-332BC was offered for sale by a Colorado-based art dealer, with a starting price of $65,000

- A shabti that was on sale through a Chicago-based coin dealer, dating from 1567BC-1085BC, is up for $1,950

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Updated: May 29, 2022, 4:19 AM