Podcaster: Steve Nerlich
Title: Dear CA #103 – There Are Always Possibilities
Organization: Cheap Astronomy
Links: http://cheapastro.com
Description: What’s the matter with antimatter – and will we ever get to Alpha Centauri?
Dear Cheap Astronomy – How much antimatter is there and will it eventually annihilate?
Antimatter is generally found in subatomic particle form – so there’s antiprotons and anti-electrons, which can rarely come to together to form an antihydrogen atom. But that’s about it, an anti-helium nucleus has been created in a laboratory but neither it nor any other more complex anti-nuclei have been observed in nature.
Dear Cheap Astronomy – How fast could we get to Alpha Centauri with current technologies?
If we calculate the trip duration based on speeds achievable with current technology, a mission to Alpha Centauri, the nearest star system to ours, would take over 6,000 years. But even that is wildly optimistic when you consider the mass you need to accelerate up to those speeds.
Bio: Cheap Astronomy offers an educational website where you’re only as cheap as the telescope you’re looking through.
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365 Days of Astronomy
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