Scientists help probe darkenergy by testing gravity NASA
, some scientists have argued, then maybe they need to modify some of its equations or add new components.
To find out if that's the case, members of the Dark Energy Survey looked for evidence that gravity's strength has varied throughout the universe's history or over cosmic distances. A positive finding would indicate that Einstein's theory is incomplete, which might help explain the universe's accelerating expansion. They also examined data from other telescopes in addition to Blanco, including the ESA Planck satellite, and reached the same conclusion.
This video explains the phenomenon called gravitational lensing, which can cause images of galaxies to appear warped or smeared. This distortion is caused by gravity, and scientists can use the effect to detect dark matter, which does not emit or reflect light. Credit: NASA’s Goddard Space Flight Centeryet.
The galaxies themselves don't reveal the strength of gravity, but how they look when viewed from Earth does. Most matter in our universe is
United States Latest News, United States Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
Cardinals' Albert Pujols Takes Parting Shot in Wrigley Farewell TourThe Cardinals’ Albert Pujols delivered three hits in the first two games of his final series at Wrigley, including his 58th homer against the Cubs.
Read more »
Los Angeles Angels owner Arte Moreno surrenders after two decades of futility | Opinion'I want this generation of (Angels) fans to experience a World Series championship,' Arte Moreno once said. He never came close, BNightengale writes.
Read more »
Grace Kelly's Forever Look | Vanity Fair | May 2010The rare beauty and stunning self-possession that propelled Grace Kelly into the Hollywood pantheon, onto the Best-Dressed List, and ultimately to Monaco's royal palace were more than captivating—they were completely genuine. As London’s Victoria and Albert Museum unveils an exhibition devoted to Kelly’s style, which still inspires fashion from Hermès to Tommy Hilfiger to Mad Men's costumer Janie Bryant, LAURA JACOBS looks at the intertwined qualities of an icon: white-gloved ingénue, elegant goddess, passionate—and frankly sexual—romantic
Read more »
Anger Mounts Over Biden's Reported Plan to Means-Test Student Debt Relief'The hoops of means-testing means that millions and millions of borrowers won't get help.'
Read more »
What happens to sweat in outer space (Hint: There's no gravity to help it drip away)Humans' ability to sweat is useful on Earth — but when people go up into space, they find that perspiring in zero gravity presents some unique challenges.
Read more »