Wednesday, September 30, 2015

Lunar Eclipse and Milky Way over Chile [2487x800] via /r/spaceporn

Seasonal Streaks Point to Recent Flowing Water on Mars

What creates these changing streaks on Mars? Called Recurring Slope Linea (RSL), these dark features start on the slopes of hills and craters but don't usually extend to the bottom. What's even more unusual is that these streaks appear to change with the season, appearing fresh and growing during warm weather and disappearing during the winter. After much study, including a recent chemical analyses, a leading hypothesis has emerged that these streaks are likely created by new occurrences of liquid salty water that evaporates as it flows. The source for the briny water is still unclear, with two possibilities being condensation from the Martian atmosphere and underground reservoirs. An exciting inference is that if these briny flows are not too salty, they may be able to support microbial life on Mars even today. The featured image of a hill inside Horowitz Crater was investigated by instruments aboard the robotic Mars Reconnaissance Orbiter that has been returning data from Mars since 2006. via NASA

Seasonal Streaks Point to Recent Flowing Water on Mars -- APOD [1225x735] via /r/spaceporn

Cartoon Cloud/Dr Suess/Psychedelic (AKA "swiss cheese") terrain in sublimating CO2 layers near Mars' south pole [OS] [2048 x 8172] via /r/spaceporn

Fifth mission for Ariane 5 this year

via ESA Top News

NGC6979 in the Veil Nebula [2546x1871][OS][OC] via /r/spaceporn

Which planet was this taken from? [1280x904][OC] via /r/spaceporn

Animals in the News (32 photos)

via The Atlantic Photo

Venus Rising [OC] [5185 x 3456] via /r/spaceporn

The Carina Nebula [6614 x 5196] via /r/spaceporn

Water on the Moon --"The Asteroid Delivery System"

via The Daily Galaxy --Great Discoveries Channel: Sci, Space, Tech

South Dakota Sky from a few weeks ago. Caught a little Aurora in there! Made it play back and forth because... Well why not? [OC][718x404] via /r/spaceporn

A Fresh Perspective on an Extraordinary Cluster of Galaxies

Galaxy clusters are often described by superlatives. After all, they are huge conglomerations of galaxies, hot gas, and dark matter and represent the largest structures in the Universe held together by gravity. via NASA

Seasonal Streaks Point to Recent Flowing Water on Mars [1080x648] via /r/spaceporn

NASA's Search for Extraterrestrial Life in the Universe --"The Next Ten Years"

via The Daily Galaxy --Great Discoveries Channel: Sci, Space, Tech

kick flip in space [600x800] via /r/spaceporn

SMOS meets ocean monsters

via ESA Top News

Space for visitors

via ESA Top News

Tuesday, September 29, 2015

Supermoon Total Lunar Eclipse and Lightning Storm

What's more rare than a supermoon total lunar eclipse? How about a supermoon total lunar eclipse over a lightning storm. Such an electrifying sequence was captured yesterday from Ibiza, an island in southeastern Spain. After planning the location for beauty, and the timing to capture the entire eclipse sequence, the only thing that had to cooperate for this astrophotographer to capture a memorable eclipse sequence was the weather. What looked to be a bother on the horizon, though, turned out to be a blessing. The composite picture features over 200 digitally combined images from the same location over the course of a night. The full moon is seen setting as it faded to red in Earth's shadow and then returned to normal. The fortuitous lightning is seen reflected in the Mediterranean to the right of the 400-meter tall rocky island of Es Vedra. Although the next total eclipse of a large and bright supermoon will occur in 2033, the next total eclipse of any full moon will occur in January 2018 and be best visible from eastern Asia and Australia. via NASA

Observing the Cosmos in Badlands Nat'l Park, SD [OC] [4067x4067] via /r/spaceporn

The Milky Way over Big Sur [OC] [3456 x 5184] via /r/spaceporn

Hubble, a window into the soul of space [plus a huge collection in the comments] [500x700] via /r/spaceporn

Ed White's spacewalk, hand sketched art [600x600] [full album in comments] via /r/spaceporn

Every Eclipse Moon Brings Wrong Things for Human?[OC][500 x 375] via /r/spaceporn

Mecca Then and Now, 128 Years of Growth (17 photos)

via The Atlantic Photo

Super blood moon over Los Angeles [OC][1600x1068] via /r/spaceporn

Just some stars, taken from my driveway with my LG G4. (OC) [2560x1440] via /r/spaceporn

Alan Chinchar's 1991 rendition of the Space Station Freedom (3,000 × 2,292) via /r/spaceporn

A bit late, but here's my blood moon shot from southern New York [OC] [2560 x 2278] via /r/spaceporn

Coming This Fall!

via The Daily Galaxy --Great Discoveries Channel: Sci, Space, Tech

Beyond the Higgs: Nature's Top Quark Hints the "Universe Could Suddenly Collapse"

via The Daily Galaxy --Great Discoveries Channel: Sci, Space, Tech

Space portrait

via ESA Top News

NGC 4522 - a spectacular spiral galaxy that is currently being stripped of its gas content [3666 x 3666] via /r/spaceporn

Dark, Recurring Streaks on Walls of Garni Crater on Mars

Dark narrow streaks, called "recurring slope lineae," emanate from the walls of Garni Crater on Mars, in this view constructed from observations by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter. via NASA

Global Warming News: "Communicating Via Electrons Help Deep Sea Microbes Gulp Methane"

via The Daily Galaxy --Great Discoveries Channel: Sci, Space, Tech

Top Candidates for Alien Life: "Rocky Planets With Magnetic Fields Orbiting Small Stars"

via The Daily Galaxy --Great Discoveries Channel: Sci, Space, Tech

The motion of the eclipsed Moon relative to the background stars (see comments). [OS][3000x2000] via /r/spaceporn

Lunar Eclipse and Lighting Storm in Ibiza [1900x1266] via /r/spaceporn

Monday, September 28, 2015

Total Lunar Eclipse over Waterton Lake

Recorded in 2014 April, this total lunar eclipse sequence looks south down icy Waterton Lake from the Waterton Lakes National Park in Alberta, Canada, planet Earth. The most distant horizon includes peaks in Glacier National Park, USA. An exposure every 10 minutes captured the Moon's position and eclipse phase, as it arced, left to right, above the rugged skyline and Waterton town lights. In fact, the sequence effectively measures the roughly 80 minute duration of the total phase of the eclipse. Around 270 BC, the Greek astronomer Aristarchus also measured the duration of lunar eclipses - though probably without the benefit of digital clocks and cameras. Still, using geometry, he devised a simple and impressively accurate way to calculate the Moon's distance, in terms of the radius of planet Earth, from the eclipse duration. This modern eclipse sequence also tracks the successive positions of Mars, above and right of the Moon, bright star Spica next to the reddened lunar disk, and Saturn to the left and below. via NASA

NASA Image of the Year --“Now We Know There is Liquid Water on the Surface of This Cold, Desert Planet"

via The Daily Galaxy --Great Discoveries Channel: Sci, Space, Tech

Photographers photographing the super moon in Wellington, New Zealand [OC][1920x1080] via /r/spaceporn

Shoutout to Mother Nature for clearing the clouds at the last minute possible [OC] [2400x1600] via /r/spaceporn

Water on Mars: Dark, narrow streaks of salty water flowing downhill on Horowitz Crater, Mars. [1920 x 997] via /r/spaceporn

I know they're all over the place, but here's my SuperBloodMoon shot [OC][2048x1365] via /r/spaceporn

The "blood moon" lunar eclipse was obscured by these really amazing clouds over Lake Tahoe, last night, however the Milky Way and other stars were shining brightly [oc][1800x1201] via /r/spaceporn

Liquid Water on Mars in Hydrated Salt Flows [2560x1920] via /r/spaceporn

Human Impact on the Earth: Toronto's Leslie Street Spit (16 photos)

via The Atlantic Photo

Exploring the ice canyons of Pluto [500x700] via /r/spaceporn

NASA TV: "Water Found on Mars!" View Live

via The Daily Galaxy --Great Discoveries Channel: Sci, Space, Tech

The Super Lunar Eclipse(Blood Moon) , as seen from Riyadh, 8 inch telescope [OC] [3110x2073] via /r/spaceporn