Search results
Results from the WOW.Com Content Network
In cosmology, a Hubble volume (named for the astronomer Edwin Hubble) or Hubble sphere, Hubble bubble, subluminal sphere, causal sphere and sphere of causality is a spherical region of the observable universe surrounding an observer beyond which objects recede from that observer at a rate greater than the speed of light due to the expansion of ...
Parts-per-million chart of the relative mass distribution of the Solar System, each cubelet denoting 2 × 10 24 kg. This article includes a list of the most massive known objects of the Solar System and partial lists of smaller objects by observed mean radius.
Hubble radius, Hubble sphere (not to be confused with a Hubble bubble), Hubble volume, or Hubble horizon is a conceptual horizon defining the boundary between particles that are moving slower and faster than the speed of light relative to an observer at one given time. Note that this does not mean the particle is unobservable; the light from ...
Volume of planet Mars: 9.28 × 10 20: Volume of planet Venus: 1 × 10 21: One yottalitre: 1.08 × 10 21: Volume of planet Earth: 2.25 × 10 21: Volume of all the rocky planets in the Solar System: 6.38 × 10 22: Volume of planet Neptune: 7.02 × 10 22: Volume of planet Uranus: 9.23 × 10 23: Volume of planet Saturn: 1 × 10 24: One ronnalitre ...
That's actually the planet Mars. Here's HLN: 'The planet is expected to line up with Earth and. Skip to main content. News. 24/7 help. For premium support please call: 800-290 ...
The Hubble length or Hubble distance is a unit of distance in cosmology, defined as cH −1 — the speed of light multiplied by the Hubble time. It is equivalent to 4,420 million parsecs or 14.4 billion light years. (The numerical value of the Hubble length in light years is, by definition, equal to that of the Hubble time in years.)
The light from the smallest, most redshifted galaxies originated nearly 13.8 billion years ago. The comoving distance from Earth to the edge of the observable universe is about 14.26 gigaparsecs (46.5 billion light-years or 4.40 × 10 26 m) in any direction.
Optical light is still the primary means by which astronomy occurs, and in the context of cosmology, this means observing distant galaxies and galaxy clusters in order to learn about the large scale structure of the Universe as well as galaxy evolution.