A new study suggests the universe might collapse in 20 billion years. This challenges the idea of endless expansion.

Latest data from Dark Energy Survey (DES) as well as the Dark Energy Spectroscopic Instrument (DESI) suggests that 'dark energy' might be changing with time.

The scientists, who are collaborating on something called the Dark Energy Spectroscopic Instrument (DESI) are studying the history of the universe's expansion out to 11 billion years in the past.

The scientists, who are collaborating on something called the Dark Energy Spectroscopic Instrument (DESI) are studying the history of the universe's expansion out to 11 billion years in the past.

The scientists, who are collaborating on something called the Dark Energy Spectroscopic Instrument (DESI) are studying the history of the universe's expansion out to 11 billion years in the past.