Universe expanding 5-9 pc faster than we thought

An invisible force called dark energy is hypothesised to be repelling galaxies but its nature is still complete mystery.

Published: 03rd June 2016 08:30 AM  |   Last Updated: 03rd June 2016 08:30 AM   |  A+A-

By ANI

WASHINGTON: Turns out, in the universe, everything is flying apart quite a bit quicker than previously believed.

Astronomers using NASA's Hubble Space Telescope have discovered that the universe is expanding 5 percent to 9 percent faster than expected.

"This surprising finding may be an important clue to understanding those mysterious parts of the universe that make up 95 percent of everything and don't emit light, such as dark energy, dark matter, and dark radiation," said study leader Adam Riess of The Johns Hopkins University.

Riess' team made the discovery by refining the universe's current expansion rate to unprecedented accuracy, reducing the uncertainty to only 2.4 percent. The team made the refinements by developing innovative techniques that improved the precision of distance measurements to faraway galaxies.

One possible explanation could be a new type of subatomic particle that may have changed the balance of energy in the early universe, scientists believe.

Astronomers used Hubble to measure the distances to stars in 19 galaxies with more precision than ever before.

It was Hubble observations that made the bombshell discovery in 1998 that the universe was not only expanding, but expanding at a faster and faster rate.

An invisible force called "dark energy" is hypothesised to be repelling the galaxies but its nature is still a complete mystery.

The results will appear in The Astrophysical Journal.

Stay up to date on all the latest Tech news with The New Indian Express App. Download now
(Get the news that matters from New Indian Express on WhatsApp. Click this link and hit 'Click to Subscribe'. Follow the instructions after that.)

Comments

Disclaimer : We respect your thoughts and views! But we need to be judicious while moderating your comments. All the comments will be moderated by the newindianexpress.com editorial. Abstain from posting comments that are obscene, defamatory or inflammatory, and do not indulge in personal attacks. Try to avoid outside hyperlinks inside the comment. Help us delete comments that do not follow these guidelines.

The views expressed in comments published on newindianexpress.com are those of the comment writers alone. They do not represent the views or opinions of newindianexpress.com or its staff, nor do they represent the views or opinions of The New Indian Express Group, or any entity of, or affiliated with, The New Indian Express Group. newindianexpress.com reserves the right to take any or all comments down at any time.

flipboard facebook twitter whatsapp