I'm not afraid of storms, for I'm learning how to sail my ship.
Photo Credit: Casey Horner
1597718 hours ago
Have you ever sat and wonder what you are going to do with your day? High above Earth, aboard the International Space Station, sits astronaut Tracy Caldwell Dyson in the Cupola module. Probably she was missing Earth and wondering if she made the right decision in becoming an astronaut...Probably thinking she did.
Imagine taking in breathtaking views of the Earth below you while experiencing a sunrise and sunset every 90 minutes. Astronaut Ricky Arnold (@astro_ricky) experienced that mind-blowing workday as he performed a 6.5 hour spacewalk yesterday and captured this selfie. Alongside fellow spacewalker Drew Feustel (@astro_feustel), Arnold finished upgrading cooling system hardware and installed new and updated communications equipment for future dockings of commercial crew spacecraft. Spacewalkers have now spent a total of 54 days, 16 hours and 40 minutes working outside the International Space Station (@ISS) in support of assembly and maintenance of the orbiting laboratory.
吃饭了吗？(HAVE YOU EATEN?)
Mixed media and Chinese ink
For Project Home, exhibiting till 16 May.
Every Lunar New Year, the Chinese will return home for a family reunion. Parents will give their children money in red packets as a blessing of good fortune. However, many immigrant families do not have the money or time to go home, and will spend the New Year thousands of miles apart. Each year, parents will keep their children's red packets safe until the day they come home, filled with their unspoken love and worry expressed the only way they know how: "have you eaten?"
The way we look for life outside our planet is simple. Find presence some essential element of life. By studying the atmospheres of distant planets, looking for gases that may be produced by living organisms. A group of scientists thinks we should look for two gases in particular: carbon dioxide and methane.
Sometimes oxygen is taken as a sign of extraterrestrial life. Oxygen is abundant in Earth’s atmosphere because there are many plants and other organisms that constantly pump out the gas. Without life on Earth, oxygen would eventually disappear.
Scientist suggest oxygen may not be the best target since the gas didn’t always exist in large quantities here on Earth even when life was present. Billions of years ago, the Earth’s atmosphere had different combinations of gases, including carbon dioxide and methane, that only existed together because of the rudimentary life on Earth’s surface. Carbon dioxide and methane react with one other, causing the methane to eventually disappear, unless there are some types of organisms that keep pumping more methane into the atmosphere. (Finding life is so difficult)
Methane can be produced by a variety of processes, not just by living organisms. Scientists calculated the possibilities of an atmosphere having the two gases with no life on the surface, and the chances are pretty slim. You can make a little bit of methane without life. No gas is an absolute recruitment for life I believe the way we are searching for new forms of life isn’t going to work for much long.
#astronomy | #astronomer | #astrophysics | #space | #cosmos | #science | #physics | #universe | #stars | #planet | #astronaut | #constellation | #interstellar | #spacetravel | #outerspace | #sun | #moon | #astrobiology | #NASA | #Hubble | #telescope | #galaxy | #stargazing | #starstuff | #nature | #photography | #astrophotography | #curiosity | #exploration | #nasabeyond
‘Twas the night before launch and Orbital ATK’s #Antares rocket with the #Cygnus spacecraft perched on top, sits ready on the launch pad for tomorrow’s 4:39 a.m. EDT liftoff. Packed with around 7,400 pounds of science experiments, food and supplies, this marks Orbital ATK’s ninth contracted cargo delivery flight to the International Space Station (@iss). Orbiting 250 miles above Earth, the space station has had a continuous human presence since the year 2000, and is currently home to six astronauts. While onboard, crew members conduct important scientific research that will not only pave the way for humans to travel deeper into the solar system than ever before, but also has benefits to life here on Earth.
Credit: NASA/Aubrey Gemignani