It's official: The universe is toast

The universe is dying - but don't panic, you've still got 100 billion years to get your bucket list done.

Researchers from the International Centre for Radio Astronomy Research in Western Australia have measured the energy generated across 200,000 galaxies more precisely than ever before.

They found the energy is only half of what it was two billion years ago and is continually fading.

The universe is in its death throes.

Scientists used seven of the world's most powerful telescopes to observe the galaxies and map various types of energy output, from far infrared to the far ultraviolet.

Professor Simon Driver from ICRAR, who will present this work at the General Assembly of the International Astronomical Union in Honolulu on Tuesday, said the research looks "bleak" but we have a long time.

"It's going to be a long retirement and a slow dwindling process," Professor Driver told reporters.

"It's about 100 billion years or so until all starlight stops being produced."

- AAP