I am an observational cosmologist that aims to shed light on the nature of dark matter and dark energy—the main ingredients of the Universe we seem to lack a good explanation for. To explore the dark side of the universe I use the bending of light rays by matter, a technique called weak gravitational lensing.
A traveller puts his head under the edge of the firmament in the original printing of the Flammarion wood engraving.On July 1st 2023, Euclid, a unique European space telescope was launched from Cape Canaveral. The launch was undoubtedly the highlight of my career as an astronomer, but witnessing the result of years of work being put on a rocket is not for the faint of heart. Following a perfect launch,. Over the past century we have made tremendous progress.
But how can we study the distribution of matter, if most of it is invisible dark matter? Fortunately, nature has provided a convenient way forward:around it. Clumps of dark matter reveal their presence by distorting the shapes of more distant galaxies, just like waves on the surface of a swimming pool distort the pattern of tiles on the bottom.Euclid image of the Perseus cluster of galaxies.
An illustration of strong lensing and how weak gravitational lensing distorts the observed shapes of a field of galaxies if matter is in the foreground near the line-of-sight : The presence of matter between the background galaxies and us causes a coherent distortion in their shape and orientation. If done for a large part of the sky, such a distortion measurement carries valuable information about the distribution of matter across cosmic time.
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.
SBS Idol Survival Show “Universe Ticket” To Return With Sports-Inspired Male Version “Universe League”SBS’s idol survival show “Universe Ticket” is gearing up to return with a male version for Season 2! On April 15, “Universe Ticket”—the audition program that recently gave rise to the new girl group UNIS—announced its plans to recruit contestants for “Universe League,” a male version of the show.
Read more »
Charges in Euclid Avenue shooting could be upgraded to capital murder, Mobile detective testifiesSantoine Tyreek Johnson stands charged with two counts each of murder and attempted murder related to a mass shooting on Euclid Avenue, but he could be facing even more serious charges, according to testimony Monday.
Read more »
‘Very kind’: Euclid community replaced beloved victim’s stolen bikeThe Euclid Police Department on Friday said they are looking for the person responsible for stealing a man’s bike, which is his only method of transportation.
Read more »
Euclid Telescope To Illuminate Dark MatterThe Euclid space telescope will embark on a six-year mission to map the universe. In particular, it will investigate dark matter and dark energy. Ground telescope data will add color and depth to its images.
Read more »
Illegal firearms: Euclid sees fewer guns in hands of teens thanks to special police unitThree loaded guns were taken off the streets during a traffic stop in March thanks to the Euclid Police Department. The four people inside the car were all under 21 years old, and one was a juvenile.
Read more »
South Euclid police arrest 3 kids under age 13 for allegedly trying to steal a carSouth Euclid police said a woman on Maywood Road called police on March 21 after she saw someone break out her car window.
Read more »