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Astronomy Cast Ep. 374: Stern-Gerlach Experiment

In the world of quantum mechanics, particles behave in discreet ways. One breakthrough experiment was the Stern-Gerlach Experiment, performed in 1922.

Close Encounter of the Asteroid Kind – 2015 HD1 Skims By Earth Tonight

Newly found asteroid 2015 HD1 will pay a close visit to Earth overnight, zipping by at just 45,600 miles at 3:11 a.m.

100,000 Galaxies, and No Obvious Signs of Life

False-color image of the mid-infrared emission from the Great Galaxy in Andromeda, as seen by Nasa’s WISE space telescope.

Dragon Snared by Stations ‘Star Trek’ Crewmate, Delivers Science for 1 Year Mission

“There’s coffee in that nebula”… ehm, I mean… in that #Dragon. ISS Flight Engineer Samantha Cristoforetti of the European Space Agency in Star Trek uniform as Dragon arrives at the International Space Station on April 17, 2015.

Weekly Space Hangout – April 17, 2015:

Host: Fraser Cain (@fcain) Special Guest: Amy Shira Teitel (@astVintageSpace) Guests: Morgan Rehnberg ( / @MorganRehnberg ) Dave Dickinson (@astroguyz / (...) Read the rest of Weekly Space Hangout – April 17, 2015: (455 words) © Fraser for Universe Today, 2015.

Lunar ‘Fountain of Youth’ Challenge / Mercury Returns with Gusto

A day-old Moon filled out with earthshine floats over the Spirit Mountain ski hill in Duluth, Minn. this past January.

Scientists Map the Dark Matter Around Millions of Galaxies

The first Dark Energy Survey map to trace the dark matter distribution across a large area of sky. The colors indicate projected mass density.

High Resolution Video Reveals Dramatic SpaceX Falcon Rocket Barge Landing and Launch

Video caption: High resolution and color corrected SpaceX Falcon 9 first stage landing video of CRS-6 first stage landing following launch on April 14, 2015.

The End is Near: NASA’s MESSENGER Now Running on Fumes

The MESSENGER spacecraft has been in orbit around Mercury since March 2011 – but its days are now numbered.

Dawn Rises Over Ceres North Pole

Dawn’s framing camera took these images of Ceres on April 10, 2015 which were combined into a short animation.

Stars: A Day in the Life

Embryonic Stars amid molecular clouds   Credit: ESA/NASA/JPL-Caltech There is something about them that intrigues us all.

13 MORE Things That Saved Apollo 13, part 5: The CO2 Partial Pressure Sensor

Headlines from the Topeka (Kansas) Daily Capital newspaper from April 1970 told of the perils facing the crew of Apollo 13.

SpaceX Dragon Launches on Science Supply Run to Station, Booster Hard Lands on Barge

SpaceX Falcon 9 and Dragon blastoff from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida on April 14, 2015 at 4:10 p.m.

13 MORE Things That Saved Apollo 13, part 4: Early Entry into the Lander

Apollo 13 images via NASA. Montage by Judy Schmidt. To celebrate the 45th anniversary of the Apollo 13 mission, Universe Today is featuring “13 MORE Things That Saved Apollo 13,” discussing different turning points of the mission with NASA engineer Jerry Woodfill.

SpaceX Falcon 9 and Dragon set for Blastoff and Bold Landing Effort Today – Watch Live

SpaceX Falcon 9 and Dragon poised at Cape Canaveral Space Launch Complex 40 in Florida for planned April 14 launch to the International Space Station on the CRS-6 mission.

Carnival of Space #401

Carnival of Space. Image by Jason Major. The tent is up! This week’s Carnival of Space is hosted by Amy T.

Help Researchers Track Comet 67/P Through Perihelion

A recent Navcam montage of 67P as seen from Rosetta. Image credit: ESA Calling all light-bucket scope owners: the folks at the European Space Agency want to enlist you in the quest to monitor Comet 67P/Churyumov-Gerasimenko from our Earthbound perspective through perihelion later this summer.

Firefly Astronomy

Image credit and copyright: Steed Yu & Light makes life, and sometimes, life returns the favor.

SpaceX Falcon 9 and Dragon CRS-6 set for April 13 Launch to ISS and Historic Landing Attempt

Infographic shows how SpaceX Falcon 9 will fly back to Earth after next launch on CRS-6 mission to ISS.

This Mountain on Mars Is Leaking

Seasonal flows spotted by HiRISE on northwestern slopes in Hale Crater. (NASA/JPL/University of Arizona) As the midsummer Sun beats down on the southern mountains of Mars, bringing daytime temperatures soaring up to a balmy 25ºC (77ºF), some of their slopes become darkened with long, rusty stains that may be the result of water seeping out from just below the surface.