This is pretty neat — it’s a visualization of the Moon’s phases and libration all throughout 2014, made by NASA’s Goddard Space Flight Center Visualization Studio. They’ve done these several times in the past, and this is the latest one.
For accuracy you just can’t beat it: the global terrain map you see in the rendering was made with actual images and measurements of the lunar surface obtained by the Lunar Reconnaissance Orbiter’s LROC camera and laser altimeter. It’s the most detailed imaging of the Moon’s surface available!
So you know about the phases, but why is the Moon rocking back and forth like that? That’s the libration effect I mentioned — read more below:
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It’s getting so a spacecraft can’t take a decent picture these days without SOMEONE getting in the way! (*Ahem* MOON.) But then it just might be the lunatic we’re looking for…
The image above is one of five that were downlinked by NASA’s Lunar Atmospheric Dust Environment Explorer — aka LADEE (that’s “laddie” à la Mr. Scott, not “lady” à la Jerry Lewis) — and was taken on Feb. 8 with its wide-angle star tracker camera. We see a small portion of the lunar terrain illuminated by reflected light from the Earth from the spacecraft’s position about 156 miles above the Moon, which is about 100 miles lower than the ISS orbits above the Earth.
While not a particularly detailed image of the Moon like something we’d see from LRO, it’s still neat to see it close up and on its night side! The star tracker instrument is mainly a calibration tool for navigation… but that doesn’t mean it’s blind. (Just a wee bit farsighted.)
We don’t get to hear a lot about Ganymede these days, what with everyone paying so much attention to Titan and Enceladus and Europa and several other moons out there. Which is too bad because 1. Ganymede is plenty fascinating in its own right; and 2. it’s the LARGEST MOON IN THE SOLAR SYSTEM (and we shouldn’t forget it!) That’s why I was so happy to see this news come out today: geologists have created the first map of Ganymede that focuses exclusively on its complex geology, as observed close-up by the Voyager and Galileo spacecraft during their respective flybys. The resulting global map — which reminds me of some of the ornate illustrations that Giovanni Schiaparelli made of Mars in the 1880s — is a colorful layout of the many different terrains found across icy Ganymede, providing evidence of its complex history and a guide to future exploration missions.
Image credit: USGS Astrogeology Science Ctr/Wheaton/ASU/NASA/JPL-Caltech
Prometheus is at it again! On Feb. 5, Cassini acquired a series of images with its narrow-angle camera of Saturn’s reflective and ropy F ring, around the inside of which travels the shepherd moon Prometheus. As it orbits Saturn it regularly arcs outwards toward the inner edge of the F ring and tumbles back inwards again, a scalloping orbit by a potato-shaped moon that yanks at the fine icy particles of the ring with its gravitational tug. However faint they might be, these tidal forces are enough to pull the wispy ring particles into long strands, gaps, and clumps that follow Prometheus’ passage before eventually settling back down again.
On this day in 1966, the Soviet Luna 9 spacecraft made the first successful soft landing on the Moon and, 7 hours later, transmitted its first images of the lunar surface back to Earth. The image above is the Luna 9 lander’s first view.
It was the very first time we had ever seen images taken from the surface of another world.
How fast does the Moon rotate? How far is it (on average) to the Moon? How long did it take to build a lunar rover for the Apollo missions? And what did one cost? You could Google all of these answers for yourself, of course, but it’ll be a lot quicker — not to mention a lot more fun — to find out in the newest space-themed infographic from Neomammalian Studios, 50 Amazing Facts About the Moon! Check it out below. There may be some things you didn’t know about our planet’s partner in space.
(And here’s a little tip: don’t ever tell Buzz Aldrin he didn’t go to the Moon…)
On December 24, 1968, Apollo 8 entered lunar orbit making astronauts Frank Borman, Bill Anders, and Jim Lovell the first humans in history to travel around the Moon and see first-hand its hidden far side. During their 10-orbit voyage they captured one of the most well-known and iconic images of the Space Age: the blue-and-white sphere of Earth floating in the blackness of space beyond the Moon’s cratered limb. It was the first time a person had ever taken such a magnificent photo of the two worlds, and thanks to the trove of data acquired by NASA’s Lunar Reconnaissance Orbiter we can now recreate the exact moments that the historic event took place, down to the position of the Apollo 8 spacecraft and the conversation between the three men aboard.
The video above, released today by NASA, lets us all experience what it was like to catch a glimpse of the Earth from within Apollo 8 45 years ago. Check it out — preferably in full-screen, high-definition. It’s worth it.
“The vast loneliness up here at the Moon is awe-inspiring, and it makes you realize what you have back there on Earth. The Earth from here is a grand oasis in the big vastness of space.”
— Jim Lovell, live Apollo 8 telecast, Dec. 24, 1968
Want to see more photos from Apollo 8? Visit the Project Apollo Image Archive here.