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Nature of mysterious hot spot revealed by “photogeology” Analysis of new images of a curious “hot spot” on the far side of the Moon reveal it to be a small volcanic province created by the upwelling of silicic magma. The unusual location of the province and the surprising composition of the lava that formed it offer tantalizing clues to the Moon’s thermal history. The hot spot is a concentration of a radioactive element thorium sitting between the very large and ancient impact craters Compton and Belkovich that was first detected by Lunar Prospector’s gamma-ray spectrometer in 1998. The Compton-Belkovich Thorium...

Explanation: Why would a bright full Moon suddenly become dark? Because it entered the shadow of the Earth. Almost two weeks ago this exact event happened as the Moon underwent a total lunar eclipse. That eclipse, visible from the half of the Earth then facing the Moon, was captured in numerous spectacular photographs and is depicted in the above time lapse video covering about an hour. The above video, recorded from Mt. Lemmon Sky Center in Arizona, USA, keeps the Earth shadow centered and shows the Moon moving through it from west to east. The temporarily good alignment between Earth,...

With the glow of Earth well-hidden, any dust in the moon’s scant atmosphere around the time of orbital sunrise should become visible. Scientists also expected to see the softly luminous glow of the zodiacal light, an extensive cloud of comet and asteroid dust concentrated in the flat plane of the solar system. The zodiacal light gets its name from the zodiac, that familiar band of constellations the planets pass through as they orbit the sun. Back on Earth, the zodiacal light looks like a big thumb of light standing up from the western horizon a couple hours after sunset in...

John C. Houbolt, an engineer whose contributions to the U.S. space program were vital to NASA's successful moon landing in 1969, has died. He was 95. Houbolt died Tuesday at a nursing home in Scarborough, Maine, from complications from Parkinson's disease, his son-in-law Tucker Withington, of Plymouth, Mass., confirmed Saturday. As NASA describes on its website, while under pressure during the U.S.-Soviet space race, Houbolt was the catalyst in securing U.S. commitment to the science and engineering theory that eventually carried the Apollo crew to the moon and back safely.

Explanation: A beautiful, reddened Moon slid through dark skies on April 15, completely immersed in Earth's shadow for well over an hour. It was the year's first total lunar eclipse and was widely enjoyed over the planet's Western Hemisphere. Seen from the Caribbean island of Barbados, the dimmed lunar disk is captured during totality in this colorful skyview. The dark Moon's red color contrasts nicely with bright bluish star Spica, alpha star of the constellation Virgo, posing only about two degrees away. Brighter than Spica and about 10 degrees from the Moon on the right, Mars is near opposition and...

The lunar eclipse this week will be the first of four "blood moons" and because significant events have occurred in history around the time of blood moon tetrads, many are wondering whether the biblical prophecy of the coming apocalypse is near. “Conspiracy websites draw parallels between lunar eclipses and historical events, like the fall of Constantinople and the founding of the State of Israel,” reports CTV News on April 13.

SAN FRANCISCO (CBS SF) — Just in time for tax day, which may feel like trying to squeeze blood from a rock, the moon will appear blood-red in a total lunar eclipse on the night of April 14th and overnight into April 15h. The total eclipse will be at its best over the Bay Area at 12:46 a.m. on April 15th, but the beginnings of the eclipse will be visible starting around 9:55 p.m. The moon will begin turning red at 12:08 a.m. The eclipse is a rare celestial phenomenon easily observed with the naked eye, and as such it...

He is sitting at his desk, at the headquarters of his company — of one of his companies — SpaceX. He is eating. He is eating a plate of food that his personal assistant gave him. It is late, and he is eating to stay on schedule. He is a man of scrupulously developed politesse, and he worries that eating his scheduled dinner while completing his scheduled interview might give offense. It does not, because although he eats hungrily, he never succeeds in making his food look appetizing. On his white plate is a turkey leg, a sad bouquet of...

Explanation: Tidally locked in synchronous rotation, the Moon always presents its familiar nearside to denizens of planet Earth. From lunar orbit, the Moon's farside can become familiar, though. In fact this sharp picture, a mosaic from the Lunar Reconnaissance Orbiter's wide angle camera, is centered on the lunar farside. Part of a global mosaic of over 15,000 images acquired between November 2009 and February 2011, the highest resolution version shows features at a scale of 100 meters per pixel. Surprisingly, the rough and battered surface of the farside looks very different from the nearside covered with smooth dark lunar maria....

As a child growing up in rural India in the 1960s and 1970s, Naveen Jain would gaze up at the moon and imagine a life beyond his modest surroundings. Today he's still gazing at the moon, but for far different reasons. Jain, 55, is co-founder of Moon Express, a Mountain View, Calif.-based company that's aiming to send the first commercial robotic spacecraft to the moon next year. This serial entrepreneur-he founded Internet companies Infospace and Intelius-believes that the moon holds precious metals and rare minerals that can be brought back to help address Earth's energy, health and resource challenges. Among...

With the help of a self-developed computer model, a team of researchers forecasted how apatite would have crystalized from cooling bodies of lunar magma early in the Moon's history. The model proved that the abnormally hydrogen-rich apatite crystals seen in many Moon rock samples may not have developed within a water-rich environment as previously though. "The mineral apatite is the most widely used method for estimating the amount of water in lunar rocks, but it cannot be trusted," said Jeremy Boyce of the UCLA Department of Earth, Planetary and Space Sciences in a statement. "Our new results show that there...

<p>When NASA astronauts were suiting up to go to space in the 1960s, they had to make a big decision before they explored the world above us: How large of a man are you?</p> <p>Getting it wrong could damage the mission.</p>

Explanation: As dawn broke on March 27, the center of the Milky Way Galaxy stood almost directly above the European Southern Observatory's Paranal Observatory. In the dry, clear sky of Chile's Atacama desert, our galaxy's dusty central bulge is flanked by Paranal's four 8 meter Very Large Telescope units in this astronomical fisheye view. Along the top, Venus is close to the eastern horizon. The brilliant morning star shines very near a waning crescent Moon just at the edge of one of the telescope structures. Despite the bright pairing in the east, the Milky Way dominates the scene though. Cut...

John Thornton is CEO of Astrobotic Technology. He contributed this article to Space.com's Expert Voices: Op-Ed & Insights. When the XPRIZE Foundation announced the Google Lunar XPRIZE in 2007, Astrobotic Technology chairman Red Whittaker declared his intention to compete on the first day. Since then, we have worked methodically on the technology and operations for the $20 million Grand Prize. We have approached this from the outset as an opportunity to build a business. With only a few lunar landings since Apollo, there remains a deep cultural belief that they are extraordinarily difficult and expensive. Bold, risky pursuits are called...

To convey some sense of the audacity of Tesla's Elon Musk and his plans, consider that the sale of all-electric vehicles in the U.S. reached a high of 100,000 in 2013 — but that's still less than 1 percent of all cars sold. Enter Tesla's GigaFactory, aiming by 2020 for annual production of 500,000 lithium-ion battery packs. Under one roof — a very large one, at 10 million square feet — Tesla will “manage everything from processing raw materials to the assembly of the batteries.” All of which begs the question: Where is all that lithium going to come from?...

Explanation: Get out your red/blue glasses and check out this stereo scene from Taurus-Littrow valley on the Moon! The color anaglyph features a detailed 3D view of Apollo 17's Lunar Rover in the foreground -- behind it lies the Lunar Module and distant lunar hills. Because the world was going to be able to watch the Lunar Module's ascent stage liftoff via the rover's TV camera, this parking place was also known as the VIP Site. In December of 1972, Apollo 17 astronauts Eugene Cernan and Harrison Schmitt spent about 75 hours on the Moon, while colleague Ronald Evans orbited...

New Haven, Conn. — The Gondwana supercontinent underwent a 60-degree rotation across Earth’s surface during the Early Cambrian period, according to new evidence uncovered by a team of Yale University geologists. Gondwana made up the southern half of Pangaea, the giant supercontinent that constituted the Earth’s landmass before it broke up into the separate continents we see today. The study, which appears in the August issue of the journal Geology, has implications for the environmental conditions that existed at a crucial period in Earth’s evolutionary history called the Cambrian explosion, when most of the major groups of complex animals rapidly...

Skywatchers have been trying to gauge the sun-Earth distance for thousands of years. In the third century BC, Aristarchus of Samos, notable as the first to argue for a heliocentric solar system, estimated the sun to be 20 times farther away than the moon. It wasn't his best work, as the real factor is more like 400. By the late 20th century, astronomers had a much better grip on this fundamental cosmic metric -- what came to be called the astronomical unit. In fact, thanks to radar beams pinging off various solar-system bodies and to tracking of interplanetary spacecraft, the...

University of Arizona scientists have uncovered a curious case of missing asteroids. The main asteroid belt is a zone containing millions of rocky objects between the orbits of Mars and Jupiter. The scientists find that there ought to be more asteroids there than researchers observe. The missing asteroids may be evidence of an event that took place about 4 billion years ago, when the solar system's giant planets migrated to their present locations. UA planetary sciences graduate student David A. Minton and UA planetary sciences professor Renu Malhotra say missing asteroids is an important piece of evidence to support an...

Evidence that water came to Earth during its formation from cosmic dust, rather than following later in asteroids, has been shown by a group of international scientists. The origin of the abundant levels of water on Earth has long been debated with the main differences in the theories being the nature of the material that carries the water, and whether the water came during or after planet formation. Now, Nora de Leeuw at University College London, UK, and colleagues have used molecular-level calculations to prove that dissociative chemisorption of water onto the surface of olivine rich minerals, such as forsterite,...