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PSR J1748−2446ad is the fastest-spinning pulsar known, at 716 Hz (times per second), [2] or 42,960 revolutions per minute.This pulsar was discovered by Jason W. T. Hessels of McGill University on November 10, 2004, and confirmed on January 8, 2005.
A NASA probe ventured closer to the sun than any spacecraft in history on Christmas Eve — and it whirled by at astounding speeds that also made it the fastest thing ever made by humans. Just ...
Within each orbit of the Parker Solar Probe around the Sun, the portion within 0.25 AU is the Science Phase, in which the probe is actively and autonomously making observations. Communication with the probe is largely cut off in that phase. [57]: 4 Science phases run for a few days both before and after each perihelion. They lasted 11.6 days ...
The spacecraft is expected to send back detailed data about its condition and experiences on January 1. Nasa said: “Following its record-breaking closest approach to the sun, Nasa’s Parker ...
Gravitational waves are an important prediction from Einstein's general theory of relativity and result from the bulk motion of matter, fluctuations during the early universe and the dynamics of space-time itself. Pulsars are rapidly rotating, highly magnetized neutron stars formed during the supernova explosions of massive stars. They act as ...
This potentially puts a question mark above at least a part of science's most enduring tenet -- Einstein's theory of relativity. Hubble shows the universe is expanding faster than we thought Skip ...
Thus, an accelerating universe took a longer time to expand from 2/3 to 1 times its present size, compared to a non-accelerating universe with constant ˙ and the same present-day value of the Hubble constant. This results in a larger light-travel time, larger distance and fainter supernovae, which corresponds to the actual observations.
The universe is expanding faster than previously believed, a surprising discovery that could test part of Albert Einstein's theory of relativity. Astronomers say universe expanding faster than ...
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