Articles on Universe

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In the beginning, the Universe expanded very, very fast. Flickr/Jamie

Curious Kids: what started the Big Bang?

What caused the Big Bang is still a mystery. And that's just one of the many unanswered questions, in spite of everything we do know about the birth of the Universe.
The Andromeda Galaxy, just part of a finely tuned universe. Flickr/NASA, ESA, J. Dalcanton, B.F. Williams, and L.C. Johnson (University of Washington), the PHAT team, and R. Gendler

Book review: Do we live in A Fortunate Universe?

A new book explores some of the big questions of why the universe exists and why it seems fine-tuned for life.
An illustration showing the merger of two black holes and the gravitational waves that ripple outward. LIGO/T. Pyle

Second detection heralds the era of gravitational wave astronomy

The observation of gravitational waves from a second black hole merger implies there are many more black holes in the universe than scientists had previously anticipated.
Like a cosmic roulette wheel, we exist because of a very lucky combination of factors. NASA/JPL-Caltech

We are lucky to live in a universe made for us

If some of the laws of physics were only infinitesimally different, we would simply not exist. It almost looks like the universe itself was built for life. But how can that be?
A colour image of G63349, one of the galaxies in the survey, created using near-infrared (VISTA telescope) and optical (Sloan telescope) data collated by the GAMA survey. (The bright green object is a nearby star.) ICRAR/GAMA

Don’t panic, but the universe is slowly dying

Our universe's most exciting days are well behind us, with new research showing the universe is now slowly but surely dying.

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