[Tee tiong huat]

1. SpaceX's 5-day-long Polaris Dawn expedition returned to Earth on Sept 15 with its 4 astronaut crew having undertaken world's first private spacewalk, AP reported. The crew, comprising tech billionaire Jared Isaacman, who served as Mission Commander; Mission Specialist and Medical Officer Anna Menon; Mission Specialist Sarah Gillis; and Mission pilot Scott Poteet, splashed down in the Gulf of Mexico today after their historic mission. Menon & Gillis are both SpaceX engineers, while Poteet is a former Air Force Thunderbird pilot.
   

The AP report added that besides the spacewalk feat, the four astronauts also hold the distinction of having travelled higher than anyone has since NASA’s moonwalkers. SpaceX considers the brief exercise a starting point to test spacesuit technology for future, longer missions to Mars, as per the report.
https://www.livemint.com/science/news/ei...005618.html

SpaceX completed a rare rocket landing today, which saw the firm land its Falcon 9's first stage rocket booster in the Atlantic Ocean after flying it faster than it typically does. This was one of the most strenuous landings for the workhorse Falcon 9 rocket, which has more than 300 landings in its flight history. The booster landed on a SpaceX drone ship in the Atlantic Ocean after it launched the European Commission's Galileo navigation satellites to a medium Earth orbit (MEO). This mission was SpaceX's 90th mission of the year, and yet another one where the firm managed to successfully recover a rocket. Today's mission followed an April launch of a Galileo satellite, which saw SpaceX expend its Falcon 9 rocket due to the high energy requirements of the mission. 

According to SpaceX's presenter today, while the booster was not recovered, "the data from that mission was still used to help inform changes that will allow us to safely recover and reuse the booster for today's launch."

The Falcon 9 lifted off on time from the Cape Canaveral Space Force Station in Florida at 6:50 p.m. Apart from the booster landing and payload separation, the launch was a typical affair. Falcon 9 first stage separated from the second stage at the two and a half minute mark after liftoff. The mission flew two Galileo satellites to MEO, with each satellite weighing roughly 700 kilograms. They will be deployed to an orbit of roughly 23,200 kilometers, according to SpaceX.