"Hold up, Houston, let me take a selfie."
Buzz Aldrins self-portrait during Gemini 12 with the Earth reflecting off his visor, 12 November 1966
js
:( all the time
yes.
I couldn't help but laugh maniacally.
Kitty stair surfing. [video]
NASA Astronomy Picture of the Day 2016 October 1
After closely following comet 67P/Churyumov-Gerasimenko for 786 days as it rounded the Sun, the Rosetta spacecraft’s controlled impact with the comet’s surface was confirmed by the loss of signal from the spacecraft on September 30, 2016. One of the images taken during its final descent, this high resolution view looks across the comet’s stark landscape. The scene spans just over 600 meters (2,000 feet), captured when Rosetta was about 16 kilometers from the comet’s surface. Rosetta’s descent to the comet brought to an end the operational phase of an inspirational mission of space exploration. Rosetta deployed a lander to the surface of one of the Solar System’s most primordial worlds and witnessed first hand how a comet changes when subject to the increasing intensity of the Sun’s radiation. The decision to end the mission on the surface is a result of the comet’s orbit now taking it to the dim reaches beyond Jupiter where there would be a lack of power to operate the spacecraft. Mission operators also faced an approaching period where the Sun would be close to line-of-sight between Earth and Rosetta, making radio communications increasingly difficult.
Neat!
There has been quite a bit of hype about getting people to Mars. But traveling 35 million miles to the red planet will require a new breed of rockets that are much more powerful and efficient than traditional chemical-fueled rockets.
It takes *A LOT* of fuel to get into space. The Saturn V, which launched spacecraft to the moon, required fuel tanks that were taller than the Statue of Liberty. Traveling to Mars, which is 200 times farther than the moon, means that we would need to build an even bigger rocket that can carry 200 times more fuel — a highly impractical quest.
So NASA researchers are working on a new kind of rocket with electric thrusters that can travel at high speed using less fuel. These plasma rockets can get spacecraft to the moon with one-tenth the tank of fuel used by Saturn V, and are capable of cutting a risky trip to Mars down from two years to less than two months.
Even though plasma rockets are ideal for long-term spaceflight, they do have some shortcomings.
To create plasma, a gas-like matter that’s as hot as the sun, radio waves are used to heat a gas propellant. The problem is that during the heating process, charged ion particles are expelled, causing damage to the thruster’s walls that could potentially lead to a catastrophe.
So what if there was a way that the wall could repair itself?
Gary Li, a UCLA aerospace engineering grad student, is figuring out a way to do just that. In the video below, he explains how his research could help humans travel safely and quickly to Mars:
Sounds like I'm already on the right track!
Have you ever wondered if you have what it takes to become a NASA Astronaut? The term “astronaut” derives from the Greek word meaning “space sailor,” and refers to all who have been launched as crew members aboard NASA spacecraft bound for orbit and beyond.
We’re looking for a new class of astronauts to join the NASA team, and here are a few things to know.
MYTH: All astronauts have piloting experience.
FACT: You don’t need to be a pilot to be an astronaut. Flying experience is not a requirement, but could be beneficial to have.
MYTH: All astronauts have perfect vision.
FACT: It’s okay if you don’t have 20/20 vision. As of September 2007, corrective surgical procedures of the eye (PRK and LASIK), are now allowed, providing at least 1 year has passed since the date of the procedure with no permanent adverse after effects.
MYTH: All astronauts have advanced degrees like, a PhD.
FACT: While a Bachelor’s degree from an accredited university is necessary, an advanced degree is not required to become an astronaut.
MYTH: Astronauts are required to have military experience in order to be selected.
FACT: Military experience is not required to become an astronaut.
MYTH: You have to be a certain age in order to be an astronaut.
FACT: There are no age restrictions. Astronaut candidates selected in the past have ranged between the ages of 26 and 46, with the average age being 34.
Commander and Pilot Astronauts
Pilot astronauts serve as International Space Station commanders and pilots. During flight, the commander has onboard responsibility for the vehicle, crew, mission success and safety of flight. The pilot assists the commander in controlling and operating the vehicle.
Basic requirements for an Astronaut Pilot include the following:
Bachelor’s degree from an accredited institution in engineering, biological science, physical science or mathematics. An advanced degree is desirable. Quality of academic preparation is important.
At least 1,000 hours pilot-in-command time in jet aircraft. Flight test experience is highly desirable.
Ability to pass a NASA space physical which is similar to a military or civilian flight physical and includes the following specific standards:
Distant visual acuity: 20/100 or better uncorrected, correctable to 20/20, each eye Blood pressure: 140/90 measured in a sitting position Height between 62 and 75 inches
Mission Specialist Astronauts
Mission specialist astronauts work with the commander and the pilot and have overall responsibility for coordinating operations in the following areas: systems, crew activity planning, consumables usage and experiment/payload operations.
Basic requirements for a Mission Specialist include the following:
Bachelor’s degree from an accredited institution in engineering, biological science, physical science or mathematics. Degree must be followed by at least three years of related, progressively responsible experience. An advanced degree is desirable and may be substituted for part or all of the experience requirement. Quality of academic preparation is important
Ability to pass a NASA space physical which is similar to a military or civilian flight physical and includes the following specific standards:
Distant visual acuity: 20/200 or better uncorrected, correctable to 20/20, each eye Blood pressure: 140/90 measured in a sitting position Height between 58.5 and 76 inches
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com
I need some space cakes in my life.
Galaxy based food
The real battle is who can stare each other down the longest.
straight ppl: haha they can't be gay they're space rocks lol
me: by that logic they can't be straight either
straight ppl: ...
straight ppl: I don't appreciate your tone.
Hello, folks! I mainly like to post things of the space, cartoons, and caffiene variety. Enjoy your stay! :)
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