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Chris Oxtoby
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Chris Oxtoby

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Breaking news! #wakeupPhilae  
Tweet Rosetta's lander Philae is out of hibernation! The signals were received at ESA's European Space Operations Centre in Darmstadt at 22:28 CEST on 13 June. More than 300 data packets have been analysed by the teams at the Lander Control Center at the German Aerospace Center (DLR). "Philae is doing very well: It has an operating temperature of -35ºC and has 24 Watts available," explains DLR Philae Project Manager Dr. Stephan Ulamec. "The lande...
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Into the Void
Image Credit: +NASA, Gemini Project, James McDivitt
http://apod.nasa.gov/apod/ap150606.html

Fifty years ago, on June 3, 1965, Edward White stepped out of the orbiting Gemini 4 spacecraft to become the first US astronaut to walk in space. White is captured in this photo taken by mission commander James McDivit from inside the capsule as White's spacewalk began over the Pacific Ocean on Gemini 4's third orbit. Planet Earth, spacecraft, and tether are reflected in White's gold tinted helmet visor. A gas powered manuevering gun is held in his right hand. Though the gun ran out of gas after only 3 minutes, he continued to manuever by twisting his body and pulling on the tether for the remainder of the 23 minute long Extra Vehicular Activity. White later described his historic spacewalk as the most comfortable part of the mission, and said the order to end it was the "saddest moment" of his life.
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Supernova 1994D and the Unexpected Universe
Image Credit: High-Z Supernova Search Team, HST, +NASA
http://apod.nasa.gov/apod/ap150531.html

Long ago, far away, a star exploded. Supernova 1994D, visible as the bright spot on the lower left, occurred in the outskirts of disk galaxy NGC 4526. Supernova 1994D was not of interest for how different it was, but rather for how similar it was to other supernovae. In fact, the light emitted during the weeks after its explosion caused it to be given the familiar designation of a Type Ia supernova. If all Type 1a supernovae have the same intrinsic brightness, then the dimmer a supernova appears, the farther away it must be. By calibrating a precise brightness-distance relation, astronomers are able to estimate not only the expansion rate of the universe (parameterized by the Hubble Constant), but also the geometry of the universe we live in (parameterized by Omega and Lambda). The large number and great distances to supernovae measured over the past few years, when combined with other observations, are interpreted as indicating that we live in a previously unexpected universe.
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Today marks 25 years since NASA's Voyager 1 spacecraft saw Earth as a "pale blue dot." Learn more: http://1.usa.gov/1A5np4E
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Jets from Comet Churyumov-Gerasimenko
Image Credit: +European Space Agency, ESA / Rosetta / MPS for OSIRIS Team; MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA 
http://apod.nasa.gov/apod/ap150203.html

Where do comet tails come from? Although it is common knowledge that comet tails and comas originate from comet nuclei, exactly how that happens is an active topic of research. One of the best images yet of emerging jets is shown in the featured image, taken last November by the robotic Rosetta spacecraft in orbit around the Comet 67P/Churyumov-Gerasimenko (Comet CG), and released last month. The overexposed picture shows plumes of gas and dust escaping numerous places from the Comet CG's nucleus as it nears the Sun and heats up. Although Comet CG is currently further out from the Sun than Mars, its orbit will take it almost as close as the Earth this coming August, at which time its jet activity is expected to increase by a factor of about 100. You've likely seen some debris from comet nuclei before but in another form -- when sand-sized bits end their journey through the Solar System by impacting the atmosphere of Earth as meteors.
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+SpaceX​ are really revolutionising space flight. 
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Looking forward to it too 
I have never seen a work of fiction so perfectly capture the out-of-nowhere shock of discovering that you've just bricked something important because you didn't pay enough attention to a loose wire. |< · < ? > >|. Preorder: Amazon, Barnes & Noble, Indie Bound, Hudson ...
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FYI: the distortion caused to my head when you see it on a phone's screen at a weird angle is called "the keystone effect."
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No need for digital vintage filters on these awesome shots.
On October 24, 1946, the world was introduced to the first photograph from space, a shot of our tiny planet taken 65 miles above Earth. The artist behind this iconic image was a V-2 rocket, programmed to capture a frame every 1.5 seconds before deliv...
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A message we should all listen to from +Chris Hadfield​​ courtesy of +Veritasium​​.

We all need to start doing our bit.
 
NEW VIDEO! An Astronaut's View of Earth. Colonel Chris Hadfield describes how the Earth changed before his eyes
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A Night at Poker Flat
Image Credit: +NASA / Jamie Adkins
http://apod.nasa.gov/apod/ap150130.html

Four NASA suborbital sounding rockets leapt into the night on January 26, from the University of Alaska's Poker Flat Research Range. This time lapse composite image follows all four launches of the small, multi-stage rockets to explore winter's mesmerizing, aurora-filled skies. During the exposures, stars trailed around the North Celestial Pole, high above the horizon at the site 30 miles north of Fairbanks, Alaska. Lidar, beams of pulsed green lasers, also left traces through the scene. Operating successfully, the payloads lofted were two Mesosphere-Lower Thermosphere Turbulence Experiments (M-TeX) and two Mesospheric Inversion-layer Stratified Turbulence (MIST) experiments, creating vapor trails at high altitudes to be tracked by ground-based observations.
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