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Filtering by Category: Media
A chat on the couch about how Mars was transformed from a world of oceans to the desert we know today (it was all the Sun’s fault!) I also spoke about a NASA archaeological dig into the centre of our galaxy looking for ancient stars and finished with the news that Google Lunar Xprize's private lunar space race is ON!
Read MoreI explained to Channel 10 that NASA’s MAVEN spacecraft has seen the solar wind from the Sun strip Mars of 100g of atmosphere a second (that’s a quarter pounder burger of air). During solar storms this can increase 10x-15x as much meaning that the younger and more active Sun was easily capable of stripping Mars of it’s atmosphere. This turned Mars from a world of oceans 4bn years ago into the desolate desert it is today. It also highlights the importance of our magnetic field on Earth which protects us from a similar fate!
Read MoreI spoke to Sunrise on 7 about the asteroid TB145 akak “Spooky” or the “Great Pumpkin”. An asteroid flying by Oct 31st 17.05 UTC (Halloween!) which is 4am Nov 1st for Melbourne. Awesomely it looks like a skull. It will pass by over a third further out than the Moon, although a close shave by astronomy standards there's seriously no threat AT ALL so don't panic, just enjoy the show.
Read MoreA spooky interview as an object (fittingly a 'dead' comet) will flyby Earth on Halloween just further than the Moon's is from us. I spoke about the furthest galaxies from us that Hubble has found (using a high-tech martini glass) and a dead star that is tearing apart the planets in its solar system that will likely happen to use in five billion years time.
Read MoreMy thoughts on a mysterious star that has its light blocked as something huge passes between us and this star. It could be a swarm of comets blocking the light as a nearby star flew by and disrupted comets in the Oort Cloud and sent them spiralling inwards. Another option is that it could be a Dyson Sphere, essentially the natural extension of solar panels in space that surround the star and block its light.
Read MoreI spoke about the amazing Apollo Archival Project has put thousands of Apollo era photos on flickr and the discovery that Pluto has blue skies, something we take for granted on Earth but it's actually really unusual in our solar system!
Read MoreEinstein predicted ripples in the very fabric of spacetime itself from violent collisions by massive objects like Black Holes. The latest search to find those ripples, or gravitational waves, have come up with only limits. Was Einstein wrong about these waves or is it our understanding of merging black holes? My thoughts in Cosmos Magazine.
Read MoreChatting to ABC's The Drum about the water on Mars with the implications that has for our chance to explore it, and the importance of doing so for our future on Earth.
Read MoreOn Earth, where there's water there's life so "follow the water" has been NASA's scientific guide in exploring Mars. That effort paid off today with the confirmation that liquid water is flowing on the surface right now. This has implications for both the possibility of life and habitability by human explorers.
Read MoreI was delighted when three RMIT students asked me to help explain the Aurora (the Northern / Southern lights) with them in this fantastic animation. There's something really engaging about this old school style that more recent digital graphics can miss. But decide for yourself..!
Read MoreI chatted about a recently discovered tornado on the Sun, the most distant galaxy and alien abductions in Northern Territories. Being asked about Probes by Virginia Trioli is a career first.
Read MoreNASA has undertaken a year long isolation experiment with 6 volunteers living in a dome no more than 11m wide and 6m to practice psychological survival techniques for the voyage to Mars. Unbelievably one of the volunteers brought a ukulele along to learn. They're first out of the airlock I'm guessing.
Read MoreEvery fortnight I get to sit on the couch and chat about the latest awesome science and events in space. Today was all about Rosetta watching Comet67P flare into life as well as space lettuce. Tastes like rocket apparently. Apologies for the puns.
Read MoreMore awesome results from Rosetta and in particular it's epic Philae lander has found organic material on the surface of Comet 67P
Read MoreThe discovery of the closest Earth-like world yet has huge implications for the search for alien life. We think this world will likely be too hot but it means rocky worlds similar in size to us really are everywhere... So where are all the aliens?
Read MoreI made it to the panel of ABC's The Drum to chat about finding aliens with the amazing Breakthrough Listen project and the lead role Australia is playing in this endeavour.
Read MoreQuite ridiculously I found myself chatting to THE Tony Jones on ABC Lateline about the awesome Pluto flyby mission.
Read MoreBlackholes can lie dormant for decades or more, supermassive blackholes like the one in the centre of our galaxy can silently wait for millions of years, before flaring into life as the brightest objects in the sky thanks to accreting material swirling around them glowing X-ray hot.
Read MoreI was pretty stoked to see the lander had made a surprise reawakening and rushed down to the studios to share my happiness!
Read MoreNASA has an outrageously cool new spacecraft concept for landing ever larger cargo loads onto Mars. And yes it looks like a flying saucer.
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