Seventy-three seconds after launch, Challenger was destroyed on live TV. We did not understand what we saw: Our teachers could not explain it, our parents were unlikely to have better answers, and few of us probably spent time paying attention to what transpired afterwards in terms of the official investigation. The Challenger disaster symbolizes a moment in our personal and shared memories when we felt great sorrow together.
In the latest episode of ISS Science, Astronaut Randy Bresnik explains some of the challenges astronauts face during spacewalks including extreme temperatures. Then, we stimulate the effects of extreme temperatures on metals here on Earth.
Can you imagine your teacher being chosen to be a NASA astronaut? Students in Joe Acaba’s secondary math and science classes in Florida can. Acaba was one of 11 candidates selected for the 2004 astronaut class. The process to become an astronaut is one of the most competitive and highly selective processes in the world. Do you think you have what it takes?
On Monday, August 21, Astronaut Randy “Komrade” Bresnik will have an unbelievable view of the solar eclipse, set to pass across the United States. Bresnik will watch the solar eclipse from the International Space Station (ISS)—he should be in orbit over the U.S. at exactly the right moment.
Showers, baths, swimming: these are all experiences most of us take for granted on Earth. There's nothing quite like experiencing the cool touch of water from the shower or jumping into a pool on a hot day. Gravity is what makes all of these experiences possible—it pushes that cool and refreshing water off your back and into the drain.
But all that changes in space. The lack of gravity causes water and soapsuds to stick to everything.
It’s not every day that an astronaut invites you to Johnson Space Center in Houston, Texas, to work with and film them training. But that’s exactly what Randy “Komrade” Bresnik did for the STEM in 30 team. In the following months we’ll be sharing his journey with you as he travels to the International Space Station (ISS) on Expeditions 52 and 53.
Following the Apollo 1 fire, James Webb, the administrator of NASA, asked President Johnson to conduct an investigation of the tragedy. Johnson agreed and an independent review board was convened. Among the six factors found to contribute to the Apollo 1 fire, one was the lack of a quickly removable hatch. Curator Allan Needell uses hatches from the Museum’s collection to illustrate the changes that were made to the hatch system following Apollo 1 to improve safety.
A human mission to Mars will take anywhere from two and a half to three years. That is NASA’s best estimate, with each leg of the trip taking six months and including an 18 to 20 month stay on the Red Planet. That does not sound like an extremely long-term prospect until one considers the fact that the world record for the longest single stay in Earth orbit belongs to Soviet cosmonaut and physician Valeri Poliakov at 437 days and 18 hours aboard the Mir space station in 1994-1995. That is less than half the time it would take to complete a mission to Mars.
Captain Eugene Andrew Cernan died Monday, surrounded by his family in Houston, Texas. He was 82 years old. For more than half his life, he was known as the Last Man on the Moon, but he was also a devoted father and husband, a naval aviator and advocate, and a great friend to many. He remains a hero for the ages.
“Gene” Cernan will always be remembered as the “last man on the Moon”—at least until the next person walks there. As commander of Apollo 17, the final expedition of that program, he spent three days on the Moon with Harrison “Jack” Schmitt. Yet that is not all he accomplished in a storied astronaut career.
NASA is building a brand new rocket for the future of human spaceflight. Astronaut Christina Koch, who graduated from NASA’s astronaut training program in 2015, helps us examine the Space Launch System rocket in more detail.