Some say supermoons are an "embarrassment to everything else we call super", but astrophysicist Brad Tucker reckons it's still a good excuse to go and have a look at the moon.

Nathaniel Clarke speaks of his horror at how his sister and her children were murdered, while a women's legal service warns there has been an increase in calls from women saying their partners have threatened to kill them the same way.

It's one set apiece in the blockbuster clash between Nick Kyrgios and Rafael Nadal at the Australian Open, after the local hope claims the second 6-3 on Rod Laver Arena. Follow all the action in our live blog.

This week in politics the parliament has achieved gender parity despite tone-deaf commentary, an independent triumphed after a recount and Dorinda Cox changed her tune. 

PRIME Minister Tony Abbott is reportedly open to calling a judicial inquiry into the Martin Place siege.