The board has decided to discontinue compartment exams for Classes 10 and 12 starting this session
education2 hours ago
Deadly radiation from the cosmos, potential vision loss, and atrophying bones are just some of the challenges scientists must overcome before any future astronaut can set foot on Mars, experts and top Nasa officials said Tuesday.
The US space agency believes it can put humans on the Red Planet within 25 years, but the technological and medical hurdles are immense.
"The cost of solving those means that under current budgets, or slightly expanded budgets, it's going to take about 25 years to solve those," said former Nasa astronaut Tom Jones, who flew on four space shuttle missions before retiring in 2001.
"We need to get started now on certain key technologies," he told reporters in Washington.
At an average distance of about 140 million miles (225 million kilometers), Mars poses scientific problems an order of magnitude greater than anything encountered by the Apollo lunar missions.
Can you believe it? Less than two weeks until my landing on #Mars! Even though @NASAJPL has landed on Mars safely in the past, landing on the Red Planet is never easy or guaranteed. Watch this 60-second video to get an idea of what it takes. https://t.co/nCryBG5VlL pic.twitter.com/D4ODBOAN0cWith today's rocket technology, it would take an astronaut up to nine months to reach Mars - the physical toll of floating that long in zero gravity would be huge.
- NASAInSight (@NASAInSight) November 13, 2018
Save the date: @NASAInSight is two weeks from landing on #MarsJim Garvin, chief scientist at the Nasa Goddard Space Flight Center, said InSight would fill in "critical unknowns" and help build a key understanding of Mars.
Learn more before the Nov. 26 touchdown: https://t.co/FVZ0DnOeGk pic.twitter.com/QEgI9ytzrV
- NASA JPL (@NASAJPL) November 13, 2018
The board has decided to discontinue compartment exams for Classes 10 and 12 starting this session
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