gravitational
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Space & Cosmos
Ion engines could take us to the Sun’s gravitational lens within 13 years, paper suggests
ion thruster. Credit: NASA Sending objects to other stars is still science fiction. But with some specific missions, you might be able to get at least halfway there. These “interstellar precursor missions” involve trips to the Sun’s gravitational lensing point, which is 550 astronomical units from the Sun. This is further away than any previous man-made object, including Voyager. Getting…
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Physics
Investigating the impact of ultralight dark matter on gravitational wave signals
Inspiring extreme mass ratio binaries in a dark matter environment. The movement of a small black hole creates a dense wake, which slows it down and affects the gravitational wave signal. Credit: Beatriz Oliveira and Rodrigo Vicente. A recent study published in Physical Review Letters investigated the effects of ultralight dark matter on extreme mass specific intake (EMRI), which could…
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