Sentences with phrase «interplanetary dust particles»

This abundance is lower than model estimates of ultraviolet (UV) degradation of accreted interplanetary dust particles (IDP's) or carbonaceous chondrite material.

However, there were other possible sources of water: interplanetary dust particles produced by cometary activity and asteroid collisions, icy rings, or one of the 60 Jovian satellites.

The new modeling has «produced a detailed and convincing case that [90 % of] interplanetary dust particles and the hundreds of particles that are now curated on Earth originate from Jupiter family comets,» writes planetary scientist Stanley Dermott of the University of Florida, Gainesville, in an e-mail.

These techniques will allow us to investigate other small - scale extraterrestrial materials such as micrometeorites, interplanetary dust particles, and cometary particles in future studies.»

Even in the absence of life, meteorites, comets and interplanetary dust particles should have delivered organics over the past four and a half billion years.

The similar H2O fluxes per unit area found in the four giant planets and Titan (Feuchtgruber et al. 1997; Coustenis et al. 1998; Moses et al. 2000), combined with the rather constant dust flux (∼ 3 × 10 − 18 g cm − 2 s − 1) measured in interplanetary space beyond 5 AU (Landgraf et al. 2002), have been regarded as evidence that micrometeoroids — interplanetary dust particles (IDPs) or interstellar — are the dominant source (Moses et al. 2000).

My research is focused on the origin of the first solar - system solids, ancient presolar circumstellar dust grains, primitive organic compounds, interplanetary dust particles, and the evolution of asteroidal bodies.

Beyond the Sun, its eight planets, and their larger moons, the solar system is home to a myriad of other, smaller bodies, including dwarf planets, asteroids, trojans, centaurs, and comets, all the way down to interplanetary dust particles.

«Without a way to take it out of the atmosphere quicker, our measurements indicate there can not be much methane being put into the atmosphere by any mechanism, whether biology, geology, or by ultraviolet degradation of organics delivered by the fall of meteorites or interplanetary dust particles.»