Fuel leak disrupts NASA's 2nd shot at launching moon rocket
Cape Canaveral (US), Sep 3: NASA's new moon rocket sprang another hazardous leak on Saturday, as the launch team began fuelling it for liftoff on a test flight that must go well before astronauts climb aboard.
For the second time this week, the launch team began loading nearly 1 million gallons of fuel into the 322-foot (98-metre) rocket, the most powerful ever built by NASA. Monday's attempt was halted by a bad engine sensor and leaking fuel.
As the sun rose, an over-pressure alarm sounded and the tanking operation was briefly halted, but no damage occurred and the effort resumed. But minutes later, hydrogen fuel began leaking from the engine section at the bottom of the rocket.
NASA halted the operation, while engineers scrambled to plug what was believed to be a gap around a seal in the supply line.
The countdown clocks continued ticking toward an afternoon liftoff; NASA had two hours on Saturday to get the rocket off.
NASA wants to send the crew capsule atop the rocket around the moon, pushing it to the limit before astronauts get on the next flight.
If the five-week demo with test dummies succeeds, astronauts could fly around the moon in 2024 and land on it in 2025. People last walked on the moon 50 years ago.
Forecasters expected generally favourable weather at Kennedy Space Centre, especially toward the end of the two-hour afternoon launch window.
On Monday, hydrogen fuel escaped from elsewhere in the rocket. Technicians tightened up the fittings over the past week, but launch director Charlie Blackwell-Thompson stressed that she wouldn't know whether everything was tight until Saturday's fuelling.
Even more of a problem on Monday, a sensor indicated one of the rocket's four engines was too warm, but engineers later verified it actually was cold enough.
The launch team planned to ignore the faulty sensor this time around and rely on other instruments to ensure each main engine was properly chilled.
Before igniting, the main engines need to be as frigid as the liquid hydrogen fuel flowing into them at minus-420 degrees Fahrenheit (minus-250 degrees Celsius).
If not, the resulting damage could lead to an abrupt engine shutdown and aborted flight.
Mission managers accepted the additional risk posed by the engine issue as well as a separate problem: cracks in the rocket's insulating foam. But they acknowledged other problems like fuel leaks could prompt yet another delay.
That didn't stop thousands from jamming the coast to see the Space Launch System rocket soar. Local authorities expected massive crowds because of the long Labour Day holiday weekend.
The USD 4.1 billion test flight is the first step in NASA's Artemis programme of renewed lunar exploration, named after the twin sister of Apollo in Greek mythology.
Twelve astronauts walked on the moon during NASA's Apollo program, the last time in 1972.
Artemis years behind schedule and billions over budget aims to establish a sustained human presence on the moon, with crews eventually spending weeks at a time there. It's considered a training ground for Mars.
Let the Truth be known. If you read VB and like VB, please be a VB Supporter and Help us deliver the Truth to one and all.
6 injured as doctor's car rams into parked vehicles in Thane district
Thane (PTI): At least six people were injured, two of them seriously, when a speeding car driven by a doctor rammed into multiple parked vehicles in the Kalyan area of Maharashtra's Thane district, police said on Thursday.
According to police officials, the driver of the four-wheeler suddenly lost control of the car, which then crashed into three to four vehicles parked along the roadside on Wednesday morning.
The car driver, identified as Dr Sanjay Bendale, has been detained by the Khadakpada police in connection with the accident, which left six people injured, they said.
"The impact of the crash was so severe that two-wheelers parked in the vicinity were heavily damaged. Local residents rushed to the spot to assist the victims and shifted them to a nearby hospital," an official said.
Of the injured, two sustained grievous wounds and are currently undergoing treatment at a private hospital, he said.
Police are investigating whether a technical failure or human error led to the crash, according to the official.
An offence has been registered against the doctor under relevant sections of the Bharatiya Nyaya Sanhita (BNS), he added.
