interstellar$40249$ - ορισμός. Τι είναι το interstellar$40249$
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Τι (ποιος) είναι interstellar$40249$ - ορισμός

SPACE PROBE THAT CAN TRAVEL OUT OF THE SOLAR SYSTEM
Starprobe; Interstellar spaceprobe; Interstellar space probe
  • Spacecraft that have left or are about to leave the Solar System are depicted as square boxes
  • Stars are literally moving targets on the time scales current technology might reach them
  • Artists view of a Voyager spacecraft in outer space.

Interstellar probe         
An interstellar probe is a space probe that has left—or is expected to leave—the Solar System and enter interstellar space, which is typically defined as the region beyond the heliopause. It also refers to probes capable of reaching other star systems.
Interstellar medium         
  • newspaper=ESA/Hubble Press Release}}</ref>
  • access-date=9 September 2013}}</ref>
  • dB]]/km as a function of frequency over the EHF band. Peaks in absorption at specific frequencies are a problem, due to atmosphere constituents such as water vapor (H<sub>2</sub>O) and carbon dioxide (CO<sub>2</sub>).
  • IBEX's]] interstellar matter observations.
  • Map showing the [[Sun]] located near the edge of the Local Interstellar Cloud and [[Alpha Centauri]] about 4 [[light-year]]s away in the neighboring [[G-Cloud]] complex
  • date=30 April 2015}}</ref>
  • ''[[Voyager 1]]'' is the first artificial object to reach the interstellar medium.
MATTER AND RADIATION IN THE SPACE BETWEEN THE STAR SYSTEMS IN A GALAXY
Interstellar gas; Interstellar matter; Interstellar Medium; Space, Interstellar; Interstellar wind; Stellar fog; Cosmic fog; Interstellar radiation field; Inter-stellar space; Interstellar magnetic field; Warm Neutral Medium; Warm Ionised Medium; Interstellar media; VLISM
In astronomy, the interstellar medium is the matter and radiation that exist in the space between the star systems in a galaxy. This matter includes gas in ionic, atomic, and molecular form, as well as dust and cosmic rays.
Interstellar travel         
  • A [[Bussard ramjet]], one of many possible methods that could serve to propel spacecraft.
  • Daedalus interstellar probe.
  • light-sail]] at the star system destination.
  • Modern Pulsed Fission Propulsion Concept.
  •  pages= [https://archive.org/details/spacetimephysics0000tayl/page/97 97–98]}}</ref> can go far, except for the problem of accelerating on-board propellant.
  • "warp drive"]] paper of [[Miguel Alcubierre]].
TERM USED FOR HYPOTHETICAL CREWED OR UNCREWED TRAVEL BETWEEN STARS
Is interstellar space travel possible; Interstellar space travel; Interstellar spaceflight; Star travel; Interstellar propulsion; Interstellar Travel; Interstellar space mission; Cosmic voyages; Interstellar transport; Interstellar ship; Wait Calculation; Wait calculation; Interstellar flight; Extrasolar mission; Extrasolar travel
Interstellar travel is the hypothetical travel of spacecraft from one star system, solitary star, or planetary system to another. Interstellar travel is expected to prove much more difficult than interplanetary spaceflight due to the vast difference in the scale of the involved distances.

Βικιπαίδεια

Interstellar probe

An interstellar probe is a space probe that has left—or is expected to leave—the Solar System and enter interstellar space, which is typically defined as the region beyond the heliopause. It also refers to probes capable of reaching other star systems.

There are five interstellar probes, all launched by the American space agency NASA: Voyager 1, Voyager 2, Pioneer 10, Pioneer 11 and New Horizons. As of 2019, Voyager 1, Voyager 2 and Pioneer 10 are the only probes to have actually reached interstellar space. The other two are on interstellar trajectories.

The termination shock is the point in the heliosphere where the solar wind slows down to subsonic speed. Even though the termination shock happens as close as 80–100 AU (astronomical units) the maximum extent of the region in which the Sun's gravitational field is dominant (the Hill sphere) is thought to be at around 230,000 astronomical units (3.6 light-years). This point is close to the nearest known star system, Alpha Centauri, located 4.36 light years away. Although the probes will be under the influence of the Sun for a long time, their velocities far exceed the Sun's escape velocity, so they are leaving forever.

Interstellar space is defined as the space beyond a magnetic region that extends about 122 AU from the Sun, as detected by Voyager 1, and the equivalent region of influence surrounding other stars. Voyager 1 entered interstellar space in 2012.

Currently, three projects are under consideration: Chinese Interstellar Express, NASA's Interstellar Probe, and StarChip from the Breakthrough Initiatives.