Washington DC: NASA is facing a significant challenge as the return of astronauts Sunita Williams and Butch Wilmore from the International Space Station (ISS) remains uncertain.

Initially planned as a brief mission aboard Boeing’s Starliner capsule, technical issues have forced NASA to consider extending their stay until early 2025.

This unplanned extension has raised concerns about the astronauts' safety and the implications for future space missions. Experts warn that the prolonged mission could increase the risk of brain damage due to potential oxygen deprivation and other factors in space.

Neurologists have pointed out that even brief periods of oxygen deprivation can lead to irreversible brain damage, while the extended exposure to space radiation could further exacerbate neurological risks.

Additionally, the emotional toll of isolation and the confined living conditions of space missions may lead to mental health issues such as Post-Traumatic Stress Disorder (PTSD).

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Kolkata (PTI): A local Trinamool Congress (TMC) leader was murdered by unidentified assailants in West Bengal's Birbhum district, police said on Saturday.

Rajbehari Sardar (65), TMC's booth chief in Patisara gram panchayat, was stabbed and severely beaten up by around five-six people at a function in Nanoor area around 10 pm on Friday, a police officer said.

Sardar was taken to Mangalkot Hospital in neighbouring Purba Bardhaman district where he was declared dead by doctors, he said.

The deceased's son alleged that Sardar was killed by members of a rival faction of the party.

The local TMC leadership said Sardar was a committed party worker and was popular in the area, but claimed that there was no report of the involvement of anyone from the party in the murder.

"We demand a thorough and prompt investigation into the incident," a local TMC leader said.