Sentences with phrase «say planetary scientists»

During those eight years, some 6,000 moonquakes, including dozens not previously detected, rumbled deep within the satellite, say planetary scientists at the Scripps Institution of Oceanography in La Jolla, California.

Rocky bodies may become synestias several times before settling into a permanent planet shape, say planetary scientists Simon Lock of Harvard University and Sarah Stewart of the University of California, Davis.

A THIN plating of metallic compounds may explain puzzling radar reflections from the mountains on Venus, say planetary scientists at Washington University in Saint Louis.

said planetary scientist Jeff Cuzzi of NASA's Ames Research Center in Moffett Field, Calif. «To me, this answers the question of what makes the rings red: It's organics.»

«What's new and exciting here is that these ice sheets start quite shallowly,» says planetary scientist Colin Dundas of the U.S. Geological Survey in Flagstaff, Ariz..

«There's a perception that Venus is a very difficult place to have a mission,» says planetary scientist Darby Dyar of Mount Holyoke College in South Hadley, Mass. «Everybody knows about the high pressures and temperatures on Venus, so people think we don't have technology to survive that.

«It will be a plume - sampling extravaganza,» says planetary scientist William McKinnon at Washington University in St Louis.

«Agee and his collaborators have thrown open the door to a whole new part of Mars,» says planetary scientist Munir Humayun at Florida State University in Tallahassee, who was not involved in the study.

The cost of JWST «is obviously a factor» in the ExoMars problems, says planetary scientist Mark Sykes of the Planetary Science Institute in Tucson, Arizona.

While there are no formal plans for a NASA mission to Europa yet, it's a top priority for many researchers working for the organization, says planetary scientist Bob Pappalardo of NASA's Jet Propulsion Laboratory.

«Intuitively, it's hard to imagine that sunlight could possibly have this effect,» says planetary scientist Richard Binzel of MIT, who nonetheless finds the work convincing.

Such refuges may be the first place to look for life on Europa, says planetary scientist Richard Greenberg of the University of Arizona, Tucson.

Life could have started and thrived under those conditions, says planetary scientist David Grinspoon of the Denver Museum of Nature & Science.

«If they can figure out the engineering and the economics, the raw materials are out there,» says planetary scientist Andrew Rivkin of Johns Hopkins University.

«We're inviting the public into the room,» says planetary scientist Candice Hansen, who is in charge of the aptly named JunoCam.

To answer that last question in particular, «you have to fly between the planet and the rings,» says planetary scientist Matthew Hedman of the University of Idaho in Moscow, who uses Cassini data to study the rings.

«I like to say that if aliens sent a probe to Earth and it landed in the Sahara, they would conclude the Earth is all desert,» says planetary scientist Michael Wong of Caltech, who was not involved in the new study.

Or perhaps the moon merged with another space rock that escaped Venus» orbit, says planetary scientist Raluca Rufu of the Weizmann Institute of Science in Rehovot, Israel.

Meteorite fragments from the Red Planet can hold traces of Martian life, says planetary scientist Colin Pillinger — and you can win one in our exclusive competition

«In the great rearrangement of the solar system, Pluto went outward, Ceres came inward,» says planetary scientist and New Horizons co-investigator William McKinnon.

«People had calculated that water ice would be stable at the pole, but no one knew whether it actually existed there,» says planetary scientist William Boynton of the University of Arizona in Tucson, who is in charge of the instrument that found the ice.

«Any comet that's going to bash into Earth has to get past this really big linebacker of Jupiter,» says planetary scientist Sean Raymond of the Laboratoire d'Astrophysique de Bordeaux in France.

«The worst thing would have been no replacement target,» says planetary scientist Donald Brownlee of the University of Washington, Seattle, who leads the Stardust mission en route to gather dust during a flyby of Comet Wild 2.

That's lightweight enough to be young, says planetary scientist Larry Esposito of the University of Colorado Boulder, a longtime old rings proponent who wasn't involved in the new work.

«UV radiation is continually destroying the methane,» says planetary scientist and co-author Anthony Del Genio of NASA's Goddard Institute for Space Studies in New York City, so all of the methane should have disappeared long ago, even accounting for rainfall.

«It's quite dramatic,» says planetary scientist Jonathan Lunine of the University of Arizona's Lunar and Planetary Laboratory in Tucson, who presented the images here on Thursday at the 37th meeting of the Division of Planetary Sciences of the American Astronomical Society.

«This discovery will make us look very hard at exoplanet formation scenarios,» says planetary scientist David Trilling of the University of Arizona.

However, the moon is too big and too close to Jupiter to be a solid hunk of ice, says planetary scientist John Anderson of NASA's Jet Propulsion Laboratory in Pasadena, California.

«If life on Earth emerged before [a] final sterilizing impact, it may have been completely erased,» says planetary scientist and lead author

«Withers's claim is perfectly reasonable,» says planetary scientist Alan Harris of the Jet Propulsion Lab in Pasadena, California.

Together, the studies finger Phoebe as a likely relic from the distant swarm of frozen cometary bodies called the Kuiper Belt, says planetary scientist J. Brad Dalton of the SETI Institute at NASA's Ames Research Center in Mountain View, California.

But the finding poses a conundrum, says planetary scientist Itay Halevy of Harvard University.

The new study «provides a very compelling narrative,» says planetary scientist Matthew Hedman, also of Cornell.

«We've seen these materials on a small scale,» says planetary scientist Jim Bell of Cornell University, a member of the rover scientific team.

The paper «makes a good case,» says planetary scientist David Stevenson of the California Institute of Technology in Pasadena.

The planet's death could happen very early in a solar system's history, or it could happen billions of years later, says planetary scientist and co-author Rory Barnes of the University of Washington, Seattle.

«Because we don't have direct access to the core, we have an imperfect ability to model what's happening there,» says planetary scientist David Stevenson of Caltech.

«Each and every fresh asteroid, when we traced it backward for 500,000 years, had passed very close to Earth» — within 100,000 kilometers, versus millions of kilometers for the other NEAs — says planetary scientist and co-author Richard Binzel of the Massachusetts Institute of Technology in Cambridge.

The paper represents «an interesting insight into the fundamental dynamics of our solar system,» says planetary scientist Jack Lissauer of NASA's Ames Research Center in Moffett Field, California.

The paper «is a wonderful and gratifying confirmation of what we found several years back,» says planetary scientist and Cassini team member Carolyn Porco of the Space Science Institute in Boulder, Colorado, who worked on the earlier examination of the F ring.

«It's a story that's not implausible, but I also think it's not needed,» said planetary scientist Konstantin Batygin of the California Institute of Technology (Caltech) here, who wasn't part of the recent discovery.

«The meteorites, therefore, are essentially magnetic recording tapes,» says planetary scientist and lead author Benjamin Weiss of the Massachusetts Institute of Technology in Cambridge.

Timing is also an issue, says planetary scientist Ronald Greeley of Arizona State University in Tempe.

«Small objects decay very quickly and enter the atmosphere,» says planetary scientist Ralph Lorenz of Johns Hopkins University.

«I'm convinced that a robotic sample return is the single biggest step that we as planetary scientists could take to foster human exploration of Mars,» says planetary scientist and former NASA associate administrator Alan Stern.

The finding «adds to the accumulating evidence that the pathways that bring these giant planets close to their parent stars are messy and chaotic,» says planetary scientist Jonathan Fortney of the University of California, Santa Cruz.

«On Pluto, almost the whole game is haze,» says planetary scientist Robert West of NASA's Jet Propulsion Laboratory in Pasadena, Calif., who wrote a commentary on the new work, also published in the Nov. 16 Nature.

That timing, says planetary scientist Dave Stegman, a research fellow at the University of Melbourne in Australia, is «actually quite serendipitous — that's exactly the time in lunar history during which a dynamo could either be dying down or just starting to ramp up.»

When asteroids or comets strike Venus, their effect is very different from the one such bodies produce on the Earth, Moon and Mars, says a planetary scientist in the US.

«It landed in mud,» says planetary scientist Christopher McKay of NASA's Ames Research Center.