The moon glows red during a total lunar eclipse, sometimes called a "blood moon," as seen from Busan, South Korea, on Oct. 8. The full moon turns dark when Earth is positioned precisely between the sun and the moon - but our planet's atmosphere refracts the sun's rays just enough to throw a reddish, sunset glow onto the darkened disc.
• Gallery: Eerie Blood Moon Dazzles Lucky Viewers
The galaxy cluster Abell 2744, also known as Pandora's Cluster, takes on a ghostly look in this Hubble Space Telescope view, released on Oct. 30. The total starlight from the cluster has been artificially colored blue. The image reveals that not all of the cluster’s starlight comes from the bright blue-white galaxies. Some of the light is dispersed throughout the cluster. Scientists say this light comes from "dead" galaxies that were torn apart long ago by gravitational forces. The stars from those galaxies were scattered into the gaps between the galaxies that survived.
Launch pad lights cast a glow on Orbital Sciences Corp.'s Antares rocket, topped by a Cygnus cargo spacecraft, at NASA's Wallops Flight Facility in Virginia on Oct. 25, three days before what was to have been its launch to the International Space Station.
Orbital Sciences Corp.'s Antares rocket explodes moments after its launch from NASA's Wallops Flight Facility in Virginia on Oct. 28. The rocket was carrying Orbital's robotic Cygnus spacecraft, loaded with supplies for the International Space Station. No one was injured.
• Gallery: Final Moments of Antares Rocket
"Not every day is easy. Today was a tough one," NASA astronaut Reid Wiseman wrote as he tweeted this picture from the International Space Station. The image shows the sun rising above the curving edge of Earth's disc on Oct. 29, a day after the explosion of the Antares rocket that was sending supplies to the station.
A photo taken from the International Space Station shows the approach of a Russian robotic Progress cargo craft on Oct. 29, a day after the Antares explosion. The Progress successfully delivered nearly 3 tons of cargo to the station. Despite the loss of the commercial Antares/Cygnus cargo mission, NASA says the station's crew has enough supplies to sustain them for many months.
Comex Space division manager Peter Weiss checks the Gandolfi spacesuit of a diver in a pool in Marseille, France, on Oct. 22. Comex is collaborating with the European Space Agency to develop the suit for potential future exploration of the moon, asteroids and Mars.
Happy Halloween! Active regions on the sun resemble a jack-o'-lantern in this extreme ultraviolet image from NASA's Solar Dynamics Observatory, captured on Oct. 8.
NGC 2359, also known as Thor's Helmet, is an emission nebula in the constellation Canis Major, about 15,000 light-years from Earth. This picture by Steven Mazlin and Jack Harvey is one of the images featured in "Starstruck: The Fine Art of Astrophotography," an exhibit that will be on display at the James A. Michener Art Museum in Doylestown, Pennsylvania.
Alan Eustace, a 57-year-old Google vice president, is lifted aloft by a balloon into the stratosphere in preparation for his record-breaking skydive over New Mexico on Oct. 24. Eustace broke the world record for the highest-altitude jump, reaching a peak velocity of a whopping 800 miles an hour during his 135,908-foot fall.
A partial solar eclipse breaks through the cloud cover in Bellingham, Washington, on Oct. 23. Observers across a wide region of North America could watch the moon cover a portion of the sun's disk - in some cases, right at sunset.
• Eclipse Turns Sun Into Cosmic Pac-Man
NASA astronaut Reid Wiseman captured this image from the International Space Station and posted it to social media on Sept. 28, writing, "The Milky Way steals the show from Sahara sands that make the Earth glow orange."
An image from the Hubble Space Telescope, released Oct. 21, shows part of the Large Magellanic Cloud, a satellite galaxy of our Milky Way. This image focuses on part of the Tarantula Nebula's outskirts.
German astronaut Alexander Gerst stands at the end of the International Space Station's robotic arm to perform repair work outside the International Space Station during a spacewalk on Oct. 7. On his Flickr feed, Gerst wrote: "Safe to say, this was the most amazing thing I have done in my life. The pump module I carry here has a mass of 400 kg. (881 lbs.) I could move it with my little finger."
The shadow of the Jovian moon Ganymede appears in the center of Jupiter's Great Red Spot in this Halloweeny image, captured by the Hubble Space Telescope on April 21 and released on Oct. 28. The shadow gives the giant planet the uncanny appearance of having a pupil in the center of a 10,000-mile-wide “eye.” For a moment, Jupiter seemed to stare back at Hubble like a giant one-eyed Cyclops.
Hurricane Gonzalo churns over the Atlantic on Oct. 16, as seen from the International Space Station. The damage caused by the hurricane as it roared over Bermuda was not as bad as feared: The British territory’s premier said the island was “bruised but unbowed.”
Northern lights illuminate the skies over Tromso, Norway, on Oct. 20. The northern lights, or aurora borealis, are the result of collisions between gaseous particles in Earth's atmosphere and charged particles released from the sun.
An Indian boy takes a picture of an art installation titled "Mars Mission" in Calcutta on Sept. 30. India's Mars Orbiter Mission spacecraft successfully maneuvered itself into orbit around the Red Planet in September, following in the footsteps of NASA's Maven orbiter and sparking congratulations from around the world.
Less than a week after its arrival in Martian orbit, India's Mars Orbiter Mission spacecraft captured this beautiful full-disk portrait of the Red Planet on Sept. 29 — marked by a dust storm as well as a pattern of light and dark that reminded some Indians of their home country.
• See September's Space Slideshow