Results 151 to 160 of about 131,137 (325)
Noble gases and nitrogen in material from asteroid Bennu
Meteoritics &Planetary Science, EarlyView.Abstract We report the elemental and isotopic abundances of all stable noble gases (helium, neon, argon, krypton, and xenon) in eight particles from asteroid Bennu returned by NASA's OSIRIS‐REx mission. We also report nitrogen abundances and isotopic ratios that were analyzed alongside neon and argon in four additional Bennu particles.
B. Marty +7 more
wiley +1 more source
The fall of the Haag (LL4‐6) chondrite breccia—Just 8 years after the nearby fall Stubenberg (LL6)
Meteoritics &Planetary Science, EarlyView.Abstract On October 24, 2024, an impressive fireball was visible over Austria. After the possible strewn field was calculated, the first sample of the Haag meteorite, with a mass of 8.76 g, was discovered on November 2, 2024, 8 days after the fireball event. Four more samples were found afterward putting the total sample mass at about 151 g.
Addi Bischoff +25 more
wiley +1 more source
Debris about asteroids: Where and how much? [PDF]
We summarize several recent findings on the size and shape of the region within which material can stably orbit an asteroid. If the asteroid (with assumed density 2.38 g/cu cm) circles the Sun at 2.55 AU, co-planar prograde material will remain trapped ...
Burns, Joseph A., Hamilton, Douglas P.
core +1 more source
Period-Multiplying Bifurcations in the Gravitational Field of Asteroids
AerospacePeriodic orbit families around asteroids serve as potential trajectories for space probes, mining facilities, and deep space stations. Bifurcations of these families provide additional candidate orbits for efficient trajectory design around asteroids ...
P. Rishi Krishna, Joel George Manathara
doaj +1 more source
International Astronomical Union Colloquium, 1983 The numbered asteroids are classified into families by a new method proposed by the author(Kozai, 1979a) and their characteristics are studied by several aspects. It seems to the author that there are two kinds of the families, one being very compact in the phase space and containing many faint as well as a few bright asteroids and one being rather ...
openaire +2 more sources
Meteoritics &Planetary Science, EarlyView.Abstract We conducted a scanning electron microscopy (SEM) and transmission electron microscopy (TEM) study of sulfide–metal assemblages (SMAs) in minimally to moderately altered CR2 chondrites. The assemblages occur on chondrule rims and consist of kamacite cores rimmed by pyrrhotite.
S. A. Singerling, A. J. Brearley
wiley +1 more source
The Astronomical JournalThe potential threat of near-Earth asteroid impacts on Earth has prompted global efforts to intensify research into asteroid defense technologies, and China plans to launch such a mission.
Bo Wang +7 more
doaj +1 more source
Earth's Minimoons: Opportunities for Science and Technology
Frontiers in Astronomy and Space Sciences, 2018 Twelve years ago the Catalina Sky Survey discovered Earth's first known natural geocentric object other than the Moon, a few-meter diameter asteroid designated 2006 RH120. Despite significant improvements in ground-based telescope and detector technology
Robert Jedicke +8 more
doaj +1 more source
ON THE SIMILARITY OF CERTAIN ORBITS IN THE ZONE OF ASTEROIDS (SECOND PAPER) [PDF]
, 1891 Daniel Kirkwood
openalex +1 more source
Eos, Transactions American Geophysical Union, 1971 Review Articles and Meetings. I will concentrate on recent review articles, especially when they give titles of earlier papers. Only for asteroids, because there seems to be no published review, and for other selected topics will we go back more than 4 years.
openaire +3 more sources