New research hints at slowing universe growth and a doable collapse

AUSTIN (KXAN) — A generally held perception that the universe is quickly increasing could also be fallacious. A brand new paper revealed this month suggests the universe’s growth is likely to be slowing down and it might imply the universe might face “The Big Crunch.”

The paper, published in Monthly Notices of the Royal Astronomical Society, comes from researchers at Yonsei University in Seoul.

Using observations from the Dark Energy Spectroscopic Instrument (DESI) in Arizona, an instrument used for to create a map of the universe, the researchers discovered that the brightness of some varieties of supernovas (Ia supernovae) could also be impacted by the age of the star that blew up.

Ia supernovae are continuously known as “standard candles.” Created when a white dwarf star blows up in programs that comprise different stars, these supernovas are believed to have a continuing quantity of sunshine. Scientists have used this fixed to trace the universe’s growth.

“Younger (stars) will produce fainter supernovae compared to older (stars). And the supernovae in the distant universe are younger compared to the local count,” stated Professor Young-Wook Lee, lead writer on the paper, to the Associated Press.

“If you make a correction for this, only one-third of this dimming remains — that is very small,” Lee stated. “So, if we take that into account, our result doesn’t match with the cosmological constant and the accelerating universe. We ended up with a decelerating universe with a time-varying dark energy.”

The darkish vitality between all issues

Most scientists imagine the universe is increasing as a consequence of darkish vitality, an invisible power present between the atoms of all issues that slowly pushes issues aside. The discovery of darkish vitality earned scientists a Nobel Prize in 2011.

“Dark energy is still there, but its pressure has been weakened compared to what was previously thought. That’s the reason why the universe is not accelerating even at the present epoch, not to mention the future,” stated Lee to the AP.

The finish of all issues

Lee says that if the universe is now not increasing, it might result in “The Big Crunch”, one of many many theories about how our universe would finish. Essentially, the universe expands as far out as doable after which collapses in on itself, till finally all the pieces that ever was is diminished to a single level in area.

“Previously, it was thought that our universe would expand forever, accelerating, but now the fate of the universe can change. The fate of the universe can change! The fate of our universe is our fate, because we are all made of stardust,” Lee stated to AP.

Scientist have pushed again. Dr. Adam Riess, from Johns Hopkins University and one the recipients of the 2011 Nobel Prize, instructed New Scientist related arguments have been made earlier than, however are weak as a result of we don’t have sufficient information concerning the supernovas or the celebrities that type them.

The group plans to do additional research associated to their findings.