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Planetary Geodynamics Laboratory (698) Press Releases & Feature Stories Archive

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Artist's conception of OSIRIS-REx landing on an asteroid.

NASA's Asteroid Sample Return Mission Moves into Development

05.16.2013
OSIRIS-REx, NASA’s first mission to sample an asteroid, is moving ahead into development and testing in preparation for its launch in 2016.
Io with a volcanic plume

Your Volcanoes Are in the Wrong Place

04.04.2013
A new study of Jupiter's moon Io, the most volcanically active world in the solar system, reveals that its volcanoes aren't concentrated where models predict they should be.
This illustration schematically shows where the Shallow Radar instrument on NASA's Mars Reconnaissance Orbiter detected flood channels that had been buried by lava flows in the Elysium Planitia region of Mars

NASA Helps See Buried Mars Flood Channels in 3-D

03.07.2013
Ground-penetrating radar makes it possible to reconstruct in 3-D ancient water channels hidden beneath the Martian surface.
From Titan: the crater Sinlap, which is a relatively 'fresh' crater,

Titan Gets a Dune "Makeover"

01.17.2013
Titan may look a lot younger than it really is because its craters are getting erased, according to the first quantitative estimate of how much Titan's weather affects the surface.
Ice on Mercury

Goddard Altimeter Helped Identify Ice on Mercury

11.29.2012
The Mercury Laser Altimeter on NASA's MESSENGER mission provided one of three new lines of evidence that water ice exists near the north pole of Mercury.
Chopo Ma

NASA | Space Geodesy Profiles: Chopo Ma

07.19.2012
Space geodesist Chopo Ma explains the science of Very Long Baseline Interferometry (VLBI): using radio emissions from distant galaxies to create a precise reference frame for the Earth.
digital clock readout showing 23:59:60

NASA Explains Why Clocks Will Get an Extra Second on June 30

06.29.2012
A "leap" second, is being added to account for the fact that it is taking Earth longer and longer to complete one full turn. Scientists know this from VLBI measurements, which are also used in the time standard UT1.
VLBI Movie

Using Quasars to Measure the Earth: A History of VLBI

06.21.2012
VLBI was originally invented in the 1960s to take better pictures of quasars, but scientists soon found that if you threw the process in reverse, you could measure how the ground beneath the telescopes moves around, how long days really are, and how the Earth wobbles on its axis!
Elevation (left) and shaded relief (right) image of Shackleton, a 21-km-diameter (12.5-mile-diameter) permanently shadowed crater adjacent to the lunar south pole.

Ice Content Estimated for Crater at Moon's South Pole

06.20.2012
The laser altimeter on NASA's Lunar Reconnaissance Orbiter (LRO) spacecraft has returned data that indicate ice may make up as much as 22 percent of the surface material in Shackleton crater at the moon's south pole.
The renowned

LRO Brings 'Earthrise' to Everyone

04.18.2012
A new NASA visualization lets everyone see Earth rise from the lunar horizon, as the Apollo 8 astronauts did when they took the iconic 'Earthrise' photo on December 24, 1968.
Diagram of the paths of earthquake waves

Discovery Sheds New Light on Wandering Continents

03.22.2012
Continents move because of plate tectonics, but what actually allows the land masses to slide? A sublayer of molten rock can't be the only explanation, a Goddard researcher finds.
Artist's concept of Earth measurement with GPS

NASA Pinning Down 'Here' Better Than Ever

02.23.2012
NASA is helping to lead an international effort to upgrade the four systems that supply crucial location information in pinpointing where "here" is.
Photo of lunar eclipse

LRO Observes Final Lunar Eclipse of 2011

12.09.2011
NASA's Lunar Reconnaissance Orbiter (LRO) spacecraft will get a "front-row seat" to the total lunar eclipse on Dec. 10, 2011, and will take temperature measurements as Earth's shadow blankets the moon.

Asteroids, Mars and Drought Among NASA News Highlights at AGU

12.01.2011
NASA researchers will present new findings on a wide range of Earth and space science topics at the 2011 fall meeting of the American Geophysical Union.
Complete list of NASA-related AGU news briefings
Gale Crater: Future Home of Mars Rover Curiosity

The Landing Site Specialist

10.18.2011
How does an ancient crater on Mars become a neighborhood that humans roam in? Planetary geologist Jim Rice talks about the process for selecting mission landing sites.
Image of the Apollo landing site from LRO

Petro discusses new views of Apollo sites

09.07.2011
Noah Petro explains how the new images of three Apollo landing sites give us a clearer view of where the astronauts went, where they sampled and where they conducted scientific experiments on the lunar surface.
The paths left by astronauts Alan Shepard and Edgar Mitchell on both Apollo 14 moon walks are visible in this image.

LRO Images Offer Sharper Views of Apollo Landing Sites

09.06.2011
NASA's LRO captured the sharpest images ever taken from space of the Apollo 12, 14 and 17 landing sites, revealing the twists and turns of the paths made when the astronauts explored these areas.
Desert R.A.T.S photo

Desert RATS 2011

08.30.2011
Desert Research And Technology Studies (D-R.A.T.S) kicks off an exciting new year of field testing. The crew is back in action, testing communication scenarios for near-Earth asteroids and two new instruments from Goddard: ExPED and VAPoR.
Mosaic of LRO Highlights, Credit: NASA/Goddard/Massachusetts Institute of Technology

LRO Shows Us the Moon As Never Seen Before

06.21.2011
LRO has forever changed our view of the moon, literally bringing it into sharper focus and showing us the whole globe in unprecedented detail.
Conceptual image of LRP Diviner instrument.

LRO Takes Extreme Close-up of Eclipse

06.13.2011
The Diviner instrument on LRO observed the June 15th lunar eclipse and took temperature measurements of the Moon.
MLA coverage shown as a polar orthographic projection extending to the equator. The altimetric profile for the MLA track highlighted is shown in detail on the right.

The Shape of Mercury

06.09.2011
Greg Neumann (698) is a team member of the Mercury Laser Altimeter (MLA) instrument on the MESSENGER spacecraft. In its first two months of operation, the MLA has already built up a topographic grid of the northern hemisphere.
Conceptual image of OSIRIS-REx.

NASA Selects OSIRIS-REx as Next New Frontiers Mission

05.25.2011
Goddard will manage this 2016 mission to return samples from asteroid 1999 RQ36 and provide the OVIRS instrument, with Solar System Exploration Division staff in a range of project scientist, instrument scientist, and science co-investigator roles. Project Scientist: Joe Nuth, with Jason Dworkin as deputy and Lucy Lim as assistant PS; OVIRS Instrument Scientist: Dennis Reuter, with Amy Simon-Miller as deputy IS; Science Co-Investigators: Danny Glavin and David Rowlands.
North polar map showing slope and roughness of the moon's surface

Moon's Rough "Wrinkles" Reveal Clues To Its Past

05.13.2011
Erwan Mazarico (698), Greg Neumann (698), and Mark Torrence (698/SGT) are part of a team that used LOLA data to map slopes and roughness of the moon's surface, revealing important clues about processes that shaped the moon.
view of a crater informally named freedom 7

Mars Tribute Marks Memories of Shepard's Flight

05.04.2011
Members of the Mars Exploration Rover Opportunity science team, including Jim Rice (698), honored the 50th anniversary of the first American in space by informally naming a martian crater "Freedom 7".
Thickness map of buried carbon-dioxide deposit

NASA Orbiter Reveals Big Changes in Mars' Atmosphere

04.21.2011
Members of the Mars Reconnaissance Orbiter SHARAD team, including GSFC's Lynn Carter, have discovered massive carbon dioxide ice deposits in the south polar layered deposits of Mars.
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  • Last Updated: 05/23/2013