This is going to be one of the “how we know what we know” kind of shows. How do scientist determine the age of things? How do we know the age of everything from stone tools, to the age of the Earth, to the age of the very Universe.
You can watch us record Astronomy Cast live every Monday at 12:00 pm PDT (3:00 pm EDT, 2000 GMT). Make sure you circle Fraser on Google+ to see it show up in the feed. You can also see it live over on our YouTube channel.
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It was 1903 that the Wright brothers made the first successful self-propelled flight. Launching themselves…
Can tidal forces cause an exoplanet’s surface to radiate heat? This is what a recent…
Untangling what happened in our Solar System tens or hundreds of millions of years ago…
Back in the 1960s and 1970s, Apollo astronauts set up a collection of lunar seismometers…
The dwarf planet Ceres has some permanently dark craters that hold ice. Astronomers thought the…
Cosmic rays are high-energy particles accelerated to extreme velocities approaching the speed of light. It…