Sentences with phrase «by orbiting spacecraft»

Here we analyse the difference between the spectra of the outgoing longwave radiation of the Earth as measured by orbiting spacecraft in 1970 and 1997.
The authors suggest that impacts and volcanism are behind the distribution of the clay exposures that can be observed by orbiting spacecraft.
Head and his team examined high - resolution images of the crater and its gullies taken by orbiting spacecraft and found evidence of features that suggested glaciers once covered the crater floor about 10 million to 20 million years ago.
Though absent today, this ancient field is recorded in rocks retrieved from the moon's surface and in magnetized patches of crust spied by orbiting spacecraft.

Not exact matches

NASA launched the Juno spacecraft, built by Lockheed Martin Space Systems (lmt), in August 2011, and it finally reached Jupiter's orbit in July 2016.
He envisions sending a larger conventional spacecraft containing thousands of nanocraft into orbit, and then launching the nanocraft one by one, he said in an interview.
There are many remarkable aspects to SpaceX: for instance, the way it has challenged accepted rocket manufacture by making rockets for a fraction of the cost; the way it has become the first private entity — rather than a country — to successfully launch spacecraft into orbit and then return; the way it went from an idea in Musk's head to a company that resupplies the International Space Station and that hopes to soon ferry astronauts back and forth.
Musk added that with the ability to carry satellites or interplanetary spacecraft weighing over 53 metric tons or 117,000 pounds to orbit, Falcon Heavy will have more than twice the performance of the Delta IV Heavy, the next most powerful vehicle, which is operated by United Launch Alliance, a Boeing - Lockheed Martin joint venture.
For example, the official Soviet propaganda apparatus has made a very big thing; of the statement by cosmonaut Gherman S. Titov that he looked all around for God while orbiting the earth in his spacecraft, and — «I didn't find anyone out there.»
By lining up the trajectory of a spacecraft through those bowls, such that momentum slackens along the route, a spacecraft can just «roll» down at the end into the moon's small bowl, easing into orbit fuel - free.
Scientists don't fully understand what's driving Jupiter's strongest auroras, but data gathered by the orbiting Juno spacecraft hint that the electrons generating Jupiter's polar glows may be accelerated by turbulent waves in the planet's magnetic field — a process somewhat akin to surfers being driven shoreward ahead of breaking ocean waves, the researchers report today in Nature.
By the early 1990s, when the Kola effort began to stall, the Voyager spacecraft had already passed beyond Pluto's orbit.
That is not a surprise, given the map of hydrogen (a stand - in for water) generated by an instrument on the Mars Odyssey orbiting spacecraft and the presence of small amounts of water in younger Martian meteorites, notes Harry McSween at the University of Tennessee in Knoxville.
SwRI's Dr. Frederic Allegrini, Dr. Randy Gladstone, and Valek are co-authors of «Jupiter's magnetosphere and aurorae observed by the Juno spacecraft during its first polar orbits»; lead author is Dr. John Connerney of the Space Research Corporation.
From Earth orbit, each featherweight spacecraft would be boosted toward Alpha Centauri at 20 percent light - speed by a minutes - long pulse from a ground - based, 100 - gigawatt laser array.
Instead of rocketing astronauts off into deep space, the Asteroid Redirect Mission would send a robotic spacecraft to a small asteroid, secure it (potentially by grabbing it and stuffing it into a giant high - tech bag) and tow it back to orbit the moon using a hyper - efficient kind of rocket engine technology called solar electric propulsion.
It occurred to me to put a spacecraft on a continuous orbit, where it would swing by Earth, then swing by the moon, then continue to cycle back and forth.
The European Space Agency recently took these ideas into a more concrete direction by releasing a concept for a spacecraft called Don Quixote that could push at an asteroid while another spacecraft (called Sancho, of course) hovers nearby to monitor any change in its orbit.
Farmer's experience with Exxon, which involved a variety of imaging and remote sensing techniques to locate geological structures favorable for the accumulation of petroleum, also served him well in working with NASA mission planners and technologists developing the instruments to be carried into Mars orbit by the next generation spacecraft.
Ulysses, a solar - orbiting spacecraft launched in 1990, was finally retired a few weeks ago by NASA and the European Space Agency after nearly two decades of operation.
As the spacecraft plunged through these orbits, a radio telescope in Argentina, run by the European Space Agency, NASA's partner on the mission, listened for tiny Doppler shifts in Cassini's signal.
So were the scientists who analyzed the data that the craft radioed back to Earth, along with related observations by NASA's twin Earth - orbiting STEREO spacecraft.
Dawn's ion engine, by contrast, has to accelerate the spacecraft continuously for months on end, spiraling outward until its trajectory matches Vesta's orbit.
These images from «Invisible: Covert Operations and Classified Landscapes» by Trevor Paglen, track the progress of various classified spacecraft in Earth's orbit.
Further discoveries and patents led to WGM biosensors capable of gauging the mass of viruses, proteins and other nanoparticles by sending them into spacecraft - like orbit around the micro-bead, thanks to a photonic «tractor beam» caused by the resonating light.
One reason: The number of pieces has been steadily rising, driven in part by collisions between orbiting pieces of trash or trash and spacecraft.
Paglen was able to identify and photograph these secret spacecraft due to the work of a diverse international group of amateur astronomers who maintain a catalogue of classified spacecraft in Earth's orbit by producing mathematical descriptions of orbits using simple tools like stopwatches and binoculars.
Jupiter's magnetosphere and aurorae observed by the Juno spacecraft during its first polar orbits.
Proposed by Caltech geochemist Don Burnett, the idea was to put a spacecraft in orbit between the sun and Earth to collect particles of solar wind — electrically charged atoms from the sun's atmosphere blown outward through the solar system.
Once the families were identified using the chemical DNA, their evolution was studied with the help of their ages and kinematical properties obtained from the space mission Hipparcos, the precursor of Gaia, the spacecraft orbiting Earth that was launched by the European Space Agency and is almost halfway through a 5 - year project to map the sky.
«By retire, I mean, if we know they're coming and they pose a threat, we have the technology to deal with it» — options include detonation or disrupting the object's orbit by ramming into it or tugging it off - course with a nearby spacecrafBy retire, I mean, if we know they're coming and they pose a threat, we have the technology to deal with it» — options include detonation or disrupting the object's orbit by ramming into it or tugging it off - course with a nearby spacecrafby ramming into it or tugging it off - course with a nearby spacecraft.
This picture was taken by NASA's Cassini probe on 19 July, while the spacecraft's orbit took it into the shadow of Saturn — meaning that the Sun was eclipsed by the gas giant.
A month later, Agnès Fienga at the Côte d'Azur Observatory in France and her colleagues found evidence that slight perturbations in Saturn's orbit as observed by the Cassini spacecraft could be better explained by the missing planet.
To reconstruct the spacecraft's orbit with sufficient accuracy, the researchers needed the detailed map of the moon's gravity field provided by the GRAIL mission.
Each NASA rover has delivered a wealth of information about the history and composition of the Red Planet, but a rover's vision is limited by the view of onboard cameras, and images from spacecraft orbiting Mars are the only other clues to where to drive it.
The resolute rocks showed up in images taken by the Rosetta spacecraft, which has been orbiting comet 67P since August.
Over the course of a month, five expanding disklike depressions appeared on the surface of 67P / Churyumov - Gerasimenko in images taken by the Rosetta spacecraft, which has been orbiting 67P since August 2014 (SN: 9/6/14, p. 8).
Despite desperate attempts to reestablish contact by Roscosmos and ESA, the craft remained mute and its orbit degraded until the spacecraft plummeted into the ocean off southern Chile.
Images from the Galileo spacecraft, which orbited Jupiter from 1995 to 2003, revealed a cracked and chaotic surface dominated by dark ridges and faults.
Almost 8 centuries later, a relatively young crater — dubbed Giordano Bruno, after the heretic who was burned at the stake in Rome for arguing that planets orbit other stars — was discovered on the far side of the moon by the Soviet spacecraft Lunik III.
Schmidt is part of a team of scientists in the early stages of developing a NASA mission, called Europa Clipper, which will investigate these questions by placing a reconnaissance spacecraft in orbit around Jupiter.
NASA also has its own spacecraft, Orion, being built by Lockheed Martin, which aims to carry humans beyond low Earth orbit for the first time since Apollo astronauts last left for the moon in 1972.
DARMSTADT, GERMANY — The comet 67P / Churyumov - Gerasimenko, which the Rosetta spacecraft is now orbiting, is by all accounts a fascinating chunk of dust and ice.
Observations of Callisto's near - space environment by instruments on board the spacecraft Galileo, which is orbiting Jupiter, lead us to believe that there is such a sub-surface ocean.
Specifically, the paper reported that at lunar - resonant orbits, perturbations from the gravitational tug - and - pull exerted on spacecraft by the Moon and Earth are roughly zero, especially if the spacecraft's apogee is about 90 degrees with respect to the Moon.
Spacecraft in low - Earth orbit, such as the shuttle and the International Space Station, are protected from these particles by the Earth's magnetic field, but astronauts travelling farther afield would not benefit from this protection.
And Vesta's overall spectral color, as returned by NASA's orbiting Dawn spacecraft, matches that of these Vesta meteorites, Dawn team members reported today at a planetary science meeting in Nantes, France.
The House bill would have NASA develop its own spacecraft to fly U.S. astronauts to low — Earth orbit by 2015, in contrast to the Administration's plan to encourage commercial space companies to build such vehicles.
It will be the fifth trip by a Dragon spacecraft to the orbiting laboratory.
The work is based on data gathered by GRAIL (Gravity Recovery and Interior Laboratory), a pair of NASA spacecraft that orbited the moon in 2012.
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