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A Bussard ramjet, one of many possible methods that could serve to propel spacecraft. Interstellar travel is the hypothetical travel of spacecraft between star systems.Due to the vast distances between the Solar System and nearby stars, interstellar travel is not practicable with current propulsion technologies.
Also as of 2024, Voyager 1 and Voyager 2 are the only probes to have actually reached interstellar space. [1] The other three are on interstellar trajectories. Contact to Pioneer 10 and 11 was lost long before they reached interstellar space. The termination shock is the point in the heliosphere where the solar wind slows down to subsonic speed.
The Bussard ramjet is a theoretical method of spacecraft propulsion for interstellar travel.A fast moving spacecraft scoops up hydrogen from the interstellar medium using an enormous funnel-shaped magnetic field (ranging from kilometers to many thousands of kilometers in diameter); the hydrogen is compressed until thermonuclear fusion occurs, which provides thrust to counter the drag created ...
More than 47 years later, both spacecraft are still exploring the uncharted territory of interstellar space. And it’s not just their longevity that captivates. Voyager 1, at 15.5 billion miles ...
The probe operates beyond the heliosphere — the sun’s bubble of magnetic fields and particles that extends well beyond Pluto’s orbit — where its instruments directly sample interstellar space.
NASA's Voyager 1 spacecraft is depicted in this artist's concept traveling through interstellar space, or the space between stars, which it entered in 2012.
Interstellar Probe (ISP) is a proposed NASA space probe designed to explore and characterize the heliosphere and interstellar space. The study was originally proposed in 2018 by NASA for the Applied Physics Laboratory. It would have a baseline launch between 2036 and 2041. [1]
Now, just four instruments operate on each spacecraft, and they are used to study charged gas called plasma, magnetic fields and particles in interstellar space, and the Voyager probes are the ...