Planetary scientists sharing ideas and discoveries.

Planetary Science and Resources Discoveries (PSRD) is an educational site sharing research on the nature and origin of the Moon, meteorites, asteroids, planets, and other materials in our Solar System, and on identifying potential resources on those bodies that could benefit people on Earth. Original support, from 1996 to 2020, came from the Planetary Science Division of NASA's Science Mission Directorate and Hawai'i Space Grant Consortium.

Archive of Comet Articles

Articles listed by publication date.

DATE POSTED	HEADLINE ARTICLES	PDF VERSIONS
AUG 2018	Observing the First Interstellar Object in our Solar System by Linda M. V. Martel CosmoSparks Report - From its brief passage through our Solar System, data collected on the interstellar, comet-like object named ‘Oumuamua can help us learn more about our universe.
18 MAR 2016	Primordial Molecular Cloud Material in Metal-Rich Carbonaceous Chondrites by G. Jeffrey Taylor Dust from the molecular cloud that gave birth to the Sun may be preserved in objects formed in the outer reaches of the Solar System.
FEB 2015	Circumstances of Cubanite in a Comet and Asteroid by Linda M. V. Martel CosmoSparks Report - Laboratory synthesis of copper-iron sulfide helps establish conditions of its formation.
MARCH 2013	Studying the Most Primitive Extraterrestrial Dust by Linda M. V. Martel CosmoSparks Report - Isotopic compositions and presolar grain abundances from interplanetary dust particles.
21 FEB 2012	Chronicle of a Chondrule's Travels by Linda M. V. Martel Isotopic measurements of a chondrule in a Comet Wild 2 grain tell the story of outward migration of solar nebula solids, helping to set the formation age of Jupiter.
SEPT 2011	Cosmochemical Building Blocks called GEMS by Linda M. V. Martel CosmoSparks Report - The unfolding story of grains of Glass with Embedded Metal and Sulfides found in interplanetary dust particles.
JULY 2011	Shooting Iron Sulfides into Aluminum Foil to Better Understand Comet Wild 2 by Linda M. V. Martel CosmoSparks Report - Laboratory simulations of impacts on Stardust Al foils.
22 JUNE 2011	A Traveling CAI by G. Jeffrey Taylor Oxygen isotopes show that a calcium-aluminum-rich inclusion wandered throughout the inner Solar System before being incorporated into an asteroid.
JUNE 2011	Looking After and Preserving NASA's Extraterrestrial Samples by Linda M. V. Martel CosmoSparks Report - The work of NASA's Astromaterials Acquisition and Curation Office.
SEPT 2010	Brownleeite: The First New Mineral Identified From a Comet by Linda M. V. Martel CosmoSparks Report - Manganese silicide discovered in an IDP.
JULY 2010	Controlling Contamination Before, During, and After Spaceflight by Linda M. V. Martel CosmoSparks Report - NASA Stardust Mission.
6 JAN 2010	Violent Adolescent Planet Caught Infrared Handed by David Trang and Eric Gaidos Infrared telescopic observations may have observed dust from an impact between protoplanets in the disk surrounding young star HD172555.
14 DEC 08	Wee Rocky Droplets in Comet Dust by G. Jeffrey Taylor and Linda M. V. Martel Tiny flash-melted objects in dust collected from comet Wild 2 were transported from the inner Solar System to the outer reaches where comets formed.
25 JAN 07	Organic Globules from the Cold Far Reaches of the Proto-Solar Disk by G. Jeffrey Taylor Hollow organic globules in the Tagish Lake meteorite probably formed far from the proto-Sun, maybe even in interstellar space before our Solar System formed.
31 JAN 06	Cosmochemistry from Nanometers to Light-Years by G. Jeffrey Taylor Cosmochemists and astronomers test theories on the formation of stars and planets.
14 FEB 97	1997 Apparition of Comet Hale-Bopp by Karen J. Meech With its closest approach to Earth on March 22, 1997, comet Hale-Bopp gave a spectacular night time show. This article also covers the historical development of cometary science and the scientific importance of comets.

	[ About PSRD \| Archive \| CosmoSparks \| Search ] [ Glossary \| General Resources \| Top of page ]
2023