Tim Peake captured this photo of the Texas A&M AggieSat4 and the Texas University BEVO-2 sats being released from the robotic arm in Japan’s Kibo Laboratory on 29 Jan 2016. Each of the sats were built by the students in the respective schools.
What does one do for fun after 300 days in space? Scott Kelly likes ping pong. Actually scientists use the microgravity environment of the space station to advance scientific knowledge in Earth, space, physical, and biological sciences that otherwise wouldn’t be possible down here on the planet.
According to NASA: The paddles are polycarbonate laser etched so that the surfaces are actually arrays of 300 micrometer posts (0.3mm). The surfaces were then spray coated with a Teflon coat. The combined effects of surface roughness and non-wettability produce a super-hydrophobic surface capable of preventing water adhesion in dynamic processes. The larger the drop, the less force it takes to break it up. The smaller the drop, the harder you can hit it. Scott is demonstrating about a 4 mL drop (over 100 times larger than a rain drop).
This was the NASA Image of the Day. The aurora as seen from the ISS over the Pacific Northwest. I was outside about the right time and saw no sign of an aurora, but I DID see the planetary line-up and it was excellent, will be looking this morning too.
NASA’s image caption:
NASA astronaut Scott Kelly and ESA astronaut Tim Peake shared a series of aurora photographs taken from the International Space Station on Jan. 20, 2016. Kelly (@StationCDRKelly) wrote, “#goodmorning #aurora and the Pacific Northwest! #YearInSpace” and Peake (@astro_timpeake) followed up with, “Getting a photo masterclass from @StationCDRKelly – magical #aurora”
The dancing lights of the aurora provide spectacular views on the ground, but also capture the imagination of scientists who study incoming energy and particles from the sun. Aurora are one effect of such energetic particles, which can speed out from the sun both in a steady stream called the solar wind and due to giant eruptions known as coronal mass ejections or CMEs.