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Voyager at the Edge of the Solar SystemData from Voyager 2 shows particles from the solar wind slowing to a halt, perhaps signalling the start of the transition out of the Solar System and into the interstellar medium.
Enceladus' Salty Sub Surface SeaThe moon Enceladus sprays out material that makes up Saturn's E-ring. Now, an analysis of particles in the spray suggest they must come from a liquid, salty water below the surface.
CoGeNT catches Dark MatterResults from the CoGeNT experiment back up previous results suggesting dark matter detections...
Dark Matter and Cluster CollisionsGravitational Lensing, X-ray and visual imaging come together to show the distribution of mass in colliding galaxy clusters - with some unexpected results...
Genesis and the surface of the SunDespite crash landing and contaminating the collection plates, painstaking analysys of solar wind material collected by the Genesis mission shows some isotopic anomalies...How do we know the ultimate fate of Earth?Hello Dr Chris! I am thoroughly enjoying listening to the last several years' podcasts during my Ferry Commute and every other reasonable solitary moment I have in the car, during a run or on a walk. Here's my question... I've heard the story that in 2 billion years, the oceans will ...Why do point light sources behave differently from diffuse ones?Hi I've just discovered The Naked Scientist and Dr Karl shows. Superb stuff. I have a question... In photography, by adjusting the f-stop you can alter the exposure for a given shutter-speed. So for example, a 500mm f2 lens shot at f2 will give the same exposure as a 100mm ...What other evidence do we have of the expanding universe?Thanks for the podcasts, they're really really great! I've got an astronomy question which has been bugging me for a while. I'm sure I am missing details and am wrong. I was hoping you could explain and make me less wrong. :-) As far as I know, the current best theory is that the ...How do we see light from the distant past?We are just now seeing light from galaxies that formed a few hundred million years after the big bang. I would think that a now-distant galaxy we are observing was relatively close to us at the time it formed. Why are we only now seeing the light from its formation. Is it because our two galaxies...Could antimatter account for dark matter and dark energy?Hello My name is Roy . I am a plumber from Belgium . And I have a burning question. Here goes: As I understand matter and antimatter should be formed in equal amounts when the universe was formed. The antimatter isn't seen but the matter is. Could it be that the antimatte...Why didn't the big bang produce heavy elements?Hi Naked Scientists, I downloaded every podcast you guys have put out and have been listening to 2 episodes each day every day at work for months! I'm currently through September of 2009, so I might not hear the answer to this question for quite some time, but this is what I was wondering.... |
Tearing a Star ApartAn unusually bright and long lived burst of gamma rays was detected by the Swift satellite in March this year. It was pretty spectacular and unlike anything ever seen before, and researchers think it was the result of a star about the size of our sun being torn to shreds by a supermassive black hol...
Seeing Stars in STEREOThe STEREO mission has already given us some amazing 3d images of the Sun as well as advancing our understanding of coronal mass ejections – the cause of space weather. But it’s also proved useful for researchers studying other stars, as I found out from Danielle Bewsher from the University of Cent...
South Africa and the Square Kilometre ArrayThe Square Kilometre Array, or SKA, should help us to answer some of the big outstanding questions about our universe. It will either be located in Australia or South Africa. Bernie Fanaroff, project manager for the South African SKA bid, met up with Chris Smith… |
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