Search results
Results from the WOW.Com Content Network
The Oort cloud is thought to have developed after the formation of planets from the primordial protoplanetary disc approximately 4.6 billion years ago. [4] The most widely accepted hypothesis is that the Oort cloud's objects initially coalesced much closer to the Sun as part of the same process that formed the planets and minor planets.
The mysterious cloud of space rocks and debris at the edge of the solar system may have spiral arms, making it resemble a mini galaxy, a new study says.. The Oort cloud is a theoretical debris ...
An artist's rendering of the Oort cloud and the Kuiper belt (inset). Tyche / ˈ t aɪ k i / was a hypothetical gas giant located in the Solar System's Oort cloud, first proposed in 1999 by astrophysicists John Matese, Patrick Whitman and Daniel Whitmire of the University of Louisiana at Lafayette.
2012 VP 113 (possibly inner Oort cloud) Sedna, a dwarf planet (possibly inner Oort cloud) Oort cloud (hypothetical) Hills cloud/inner Oort cloud; Outer Oort cloud; The Solar System also contains: Comets. List of periodic comets; List of near-parabolic comets; Small objects, including: Meteoroids; Interplanetary dust. Helium focusing cone ...
C/2014 UN 271 (Bernardinelli–Bernstein), simply known as C/2014 UN 271 or Comet Bernardinelli–Bernstein (nicknamed BB), [3] is a large Oort cloud comet discovered by astronomers Pedro Bernardinelli and Gary Bernstein in archival images from the Dark Energy Survey.
However, at the outer reaches of the system, the star's gravity is weak and galactic tides may be significant. In the Solar System, the theoretical Oort cloud, source of most long-period comets, lies in this transitional region. Diagram of the Oort cloud. The Oort cloud is a vast shell surrounding the Solar System, possibly over a light-year in ...
The existence of planets beyond Neptune, ranging from less than an Earth mass up to a brown dwarf has been often postulated [37] [38] for different theoretical reasons to explain several observed or speculated features of the Kuiper belt and the Oort cloud.
Artist's rendering of the Kuiper belt and Oort cloud. Freeman Dyson proposed that trans-Neptunian objects, rather than planets, are the major potential habitat of life in space. [citation needed] Several hundred billion to trillion comet-like ice-rich bodies exist outside the orbit of Neptune, in the Kuiper belt and Inner and Outer Oort cloud.