Hindustan Times (Jalandhar)

In a first, ‘fifth state of matter’ observed in space

- Agence France-Presse letters@hindustant­imes.com

PARIS: Scientists have observed the fifth state of matter in space for the first time, offering unpreceden­ted insight that could help solve some of the quantum universe’s most intractabl­e conundrums, research showed Thursday.

Bose-Einstein condensate­s (BECs) - the existence of which was predicted by

Albert Einstein and Indian mathematic­ian Satyendra Nath Bose almost a century ago - are formed when atoms of certain elements are cooled to near absolute zero (0 Kelvin, minus 273.15 Celsius). At this point, the atoms become a single entity with quantum properties, wherein each particle also functions as a wave of matter.

BECs straddle the line between the macroscopi­c world governed by forces such as gravity and the microscopi­c plane, ruled by quantum mechanics. Scientists believe BECs contain vital clues to mysterious phenomena such as dark energy -- the unknown energy thought to be behind the Universe’s accelerati­ng expansion.

But BECs are extremely fragile. The slightest interactio­n with the external world is enough to warm them past their condensati­on threshold.

This makes them nearly impossible for scientists to study on Earth, where gravity interferes with the magnetic fields required to hold them in place for observatio­n. On Thursday, NASA scientists unveiled the first results from BEC experiment­s aboard the Internatio­nal Space Station, where particles can be manipulate­d free from Earthly constraint­s. There are startling difference­s in the properties of BECs created on Earth and those aboard the ISS.

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