Results 41 to 50 of about 8,239 (171)
Review of asteroid, meteor, and meteorite‐type links
Meteoritics &Planetary Science, Volume 60, Issue 4, Page 928-973, April 2025.Abstract With the goal to determine the origin of our meteorites in the asteroid belt, video and photographic observations of meteors have now tracked 75 meteorite falls. Six years ago, there were just hints that different meteorite types arrived on different orbits, but now, the number of orbits (N) is high enough for distinct patterns to emerge.
Peter Jenniskens +1 more
wiley +1 more source
Exploration of the moon and planets [PDF]
, 1964 Unmanned interplanetary flight - engineering problems of mariner ii space ...
Pickering, W. H.
core +1 more source
Ceres: Organic‐Rich Sites of Exogenic Origin?
AGU Advances, Volume 6, Issue 1, February 2025.Abstract Ceres, the largest object in the asteroid belt, is the only potential ocean world in the inner Solar System. Previous studies identified deposits of aliphatic organics in and around the Ernutet crater, and at small locations at Inamahari and Urvara craters. The origin of organics, either endogenic or exogenic, in these fresh exposures is still
R. Sarkar +9 more
wiley +1 more source
Evidence for Magnetically‐Driven Accretion in the Distal Solar System
AGU Advances, Volume 5, Issue 6, December 2024.Abstract Paleomagnetic measurements of meteorites indicate that magnetic fields existed in the inner solar nebula capable of driving accretion at rates similar to those observed for young stellar objects with protoplanetary disks. However, the field strength in the solar system beyond ∼7 astronomical units (AU) and its role in accretion remain poorly ...
Elias N. Mansbach +11 more
wiley +1 more source
The Carbon Monoxide Abundance in Comet 103P/Hartley during the EPOXI Flyby
, 2011 We report the detection of several emission bands in the CO Fourth Positive Group from comet 103P/Hartley during ultraviolet spectroscopic observations from the Hubble Space Telescope (HST) on 2010 November 4 near the time of closest approach by NASA's ...
A'Hearn, M. F. +4 more
core +1 more source
Origin theories for the eccentricities of extrasolar planets [PDF]
, 2007 Half the known extrasolar planets have orbital eccentricities in excess of 0.3. Such large eccentricities are surprising as it is thought that planets form in a protoplanetary disk on nearly circular orbits much like the current states of the solar ...
Namouni, Fathi
core +3 more sources
SPICA infrared coronagraph for the direct observation of exo-planets
, 2010 We present a MIR coronagraph to target the direct observation of extrasolar planets for SPICA, in which a coronagraph is currently regarded as an option of the focal plane instruments. The primary target of the SPICA coronagraph is the direct observation
Abe +66 more
core +1 more source
Why are Jupiter-family comets active and asteroids in cometary-like orbits inactive? [PDF]
, 2016 Context: Surveys in the visible and near-infrared spectral range have revealed the presence of low-albedo asteroids in cometary like orbits (ACOs). In contrast to Jupiter family comets (JFCs), ACOs are inactive, but possess similar orbital parameters ...
B. Gundlach, J. Blum
semanticscholar +1 more source
Meteoritics &Planetary Science, Volume 59, Issue 6, Page 1236-1257, June 2024.Abstract Cosmic dust particles originate from a wide variety of solar system and interstellar objects, including sources not identified among meteorite collections. Particles that survive atmospheric entry are retrieved on the Earth's surface as micrometeorites. The recovery of these micrometeorites has recently advanced to rooftop sites.
Guido Jonker +4 more
wiley +1 more source
Names are selected for NASA spaceflight projects and programs from various sources. Some have their foundations in mythology and astrology or legend and folklore.
Karegeannes, C. E. +2 more
core +5 more sources