"We'll be keeping an eye out for signs of a repeat performance next year when the Earth-moon system passes through the same region of space, " Cooke said.
In their paper, the co-authors argue that gravitational tidal heating caused by the gravitational friction of an earth-like exo-moon on an eccentric orbit around a Jupiter-like planet lying at a Jupiter-like distance from its parent star, could, in fact, create habitable conditions.
FORBES: Earth-Like Exo-Moons Can Lurk Well Beyond Planetary Habitable Zones, Say Astronomers
On the moon, we had one-sixth of Earth's gravity, allowing Neil and me to move around easily in the Eagle to put on equipment for our walk.
In a conference room, looking through a wall of glass into the Messenger mission-control center, Solomon described his fascination with the parched and moon-like planet, which is a sister of Earth.
The television pictures on board were designed to begin operating when the rocket came within 2, 500 miles (4, 023km) of the lunar surface - 40 minutes before impact - and then send an image of the Moon back to Earth every 13 seconds.
From director Michael Bay and executive producer Steven Spielberg, in association with Hasbro, Transformers: Dark of the Moon explodes with high-octane action when a mysterious event from Earth's past erupts into the present day threatening to bring a war to Earth so big that the TRANSFORMERS alone will not be able to save us.
ENGADGET: Transformers: Dark of the Moon Blu-ray due September 30th, 3D version later
And the fact that the sun and moon were particularly close to the Earth at precisely the same time -- well, that made the tidal bulges even bigger.
The intention was to give the US a crew-carrier and rocket technology that could go beyond low-Earth orbit to more distant targets, back to the Moon and further.
But the Moon is a source of rare earth elements, as well as Helium-3, a possible future fuel for nuclear fusion reactors (if we ever actually invent them).
FORBES: Richard Branson Wants a Population on Mars. Here's How He Can Create It.
Just as with Apollo, any modern venture would need some kind of CSM element for the astronauts, together with a departure stage - a propulsion unit that could accelerate the astronauts' vehicle out of low-Earth orbit, putting it on a path to the Moon.
"For the May eclipse, the moon will be at the furthest distance from Earth that it ever achieves -- meaning that it will block the smallest possible portion of the sun, and leave the largest possible bright ring around the outside, " the agency said on its website.
Energy resources that can be harvested in space for the benefit of Earth include helium-3 that occurs in abundance on both the Moon and asteroids and is ideal for new small fusion plants, as well as solar energy that can be collected and transmitted in concentrated form to Earth.
The moon contains large concentrations of helium-3, a nonradioactive isotope that's rare on Earth but could be an incredibly valuable fuel for nuclear fusion.
Although Mercury and the Moon never progressed beyond the planetary-congealing stage, volcanic activity on Mars, Venus and Earth created powerful forces that caused further mineral diversification.
If the 295 trillion megabytes (or, exabytes) of stored information were saved on CD-ROMs, the stack of CDs would stretch from the Earth to beyond the moon, according to Hilbert and Lopez.
FORBES: Study Estimates Global Capacity to Store, Communicate and Process Data
For example, instead of the lunar rendezvous method that NASA chose for the Apollo program, the player can opt for Earth-orbit rendezvous or even direct-ascent where a single giant spacecraft lifts off from Earth and lands on the Moon.
One part, space tourism, is a luxury service that is, in any case, unlikely to go beyond low-Earth orbit at best (the cost of getting even as far as the moon would reduce the number of potential clients to a handful).
It holds that the Moon formed from the debris kicked into orbit by the collision of a smaller proto-planet with the infant Earth.
Many have impacted the Earth over its 4.5 billion-year history --as they have hit the moon, Mars and other planets -- leaving craters behind.
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