These images are from the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA's Terra satellite from February 17.
They're false colour images, using a combination of visible and near-infrared wavelengths of light to make the smoke more transparent and to highlight burned areas.
Unburned vegetation is red, while burned areas are charcoal. The top image shows a close-up around Marysville which sits near the centre of the immense burn scar.
Wildlife experts have predicted that millions of native animals have lost their lives and more will go before their habitat renews itself. I watched vets at work last night, gently helping animals from koalas to tiny possums and the tears flowed again.
The stupidest thing to cry about is my son. He's been dead for nearly 14 years but I kept looking at his portrait and thinking that he'd be right in the thick of this if he was here. He loved those forests and animals and he wouldn't have stopped fighting for them. So stupid me is crying because if I lost him now when I need him more than ever then I would be more heart broken than I was all those years ago. It's not rational but then when were mothers ever rational about their kids, so I'm still bawling at every sad or uplifting story I see. I'm old enough to be hardened to this but I go to pieces at the sight of a child hugging a new teddy to replace one lost in the fires. If anyone looks at my heart when I die, it will have 'softie' branded all over it.