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 | | EDWIN HUBBLE |
| USA (1889 - 1953) | Edwin Powell Hubble profoundly changed astronomers' understanding of the nature of the universe by demonstrating the existence of other galaxies besides the Milky Way. He also discovered that the degree of redshift observed in light coming from a galaxy increased in proportion to the distance of that galaxy from the Milky Way. This became known as Hubble's law, and would help establish that the universe is expanding. | | |
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Disfrute estos perspicaces y educacionales videoclips obtenidos de más de 70 horas de entrevistas con las más notables figuras en astronomía tomadas durante la filmación del documental 400 Años del Telescopio.
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Intrinsic luminosity
Alexei Filippenko
- University of California, Berkeley
Transcript in progress.
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Transcript in progress.
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The inverse square law
Alexei Filippenko
- University of California, Berkeley
Transcript in progress.
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Transcript in progress.
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IYA greeting
Alexei Filippenko
- University of California, Berkeley
Transcript in progress.
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Transcript in progress.
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KAIT and one-minute expansion
Alexei Filippenko
- University of California, Berkeley
Transcript in progress.
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Transcript in progress.
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KAIT: two teams in the 1990s (Part 1)
Alexei Filippenko
- University of California, Berkeley
Transcript in progress.
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Transcript in progress.
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KAIT: two teams in the 1990s (Part 2)
Alexei Filippenko
- University of California, Berkeley
Transcript in progress.
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Transcript in progress.
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KAIT and amateur astronomers
Alexei Filippenko
- University of California, Berkeley
Transcript in progress.
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Transcript in progress.
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KAIT and dark energy
Alexei Filippenko
- University of California, Berkeley
Transcript in progress.
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Transcript in progress.
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Details of KAIT
Alexei Filippenko
- University of California, Berkeley
Transcript in progress.
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Transcript in progress.
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Expansion history of the universe
Alexei Filippenko
- University of California, Berkeley
Transcript in progress.
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Transcript in progress.
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Heavy elements
Alexei Filippenko
- University of California, Berkeley
Transcript in progress.
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Transcript in progress.
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An introduction to KAIT
Alexei Filippenko
- University of California, Berkeley
Transcript in progress.
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Transcript in progress.
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Larger telescopes
Alexei Filippenko
- University of California, Berkeley
Transcript in progress.
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Transcript in progress.
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A one-dimensional model of the universe
Alexei Filippenko
- University of California, Berkeley
Transcript in progress.
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Transcript in progress.
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Why I became an astronomer
Alexei Filippenko
- University of California, Berkeley
Transcript in progress.
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Transcript in progress.
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Overthrowing hypotheses in astronomy
Alexei Filippenko
- University of California, Berkeley
Transcript in progress.
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Transcript in progress.
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Measuring supernovae
Alexei Filippenko
- University of California, Berkeley
Transcript in progress.
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Transcript in progress.
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Using supernovae to find distances
Alexei Filippenko
- University of California, Berkeley
Transcript in progress.
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Transcript in progress.
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Measuring redshift
Alexei Filippenko
- University of California, Berkeley
Transcript in progress.
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Transcript in progress.
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An example of a one-dimensional universe
Alexei Filippenko
- University of California, Berkeley
Transcript in progress.
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Transcript in progress.
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Slipher, Leavitt and Hubble
Alexei Filippenko
- University of California, Berkeley
Transcript in progress.
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Transcript in progress.
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What is redshift?
Alexei Filippenko
- University of California, Berkeley
Transcript in progress.
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Transcript in progress.
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IYA greeting (Russian)
Alexei Filippenko
- University of California, Berkeley
Transcript in progress.
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Transcript in progress.
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Dark Energy
Scott Fisher
- Gemini North
In the last few years, dark energy, dark matter have come into play and we realized that the universe is extending at a greater rate than we thought.
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That’s interesting because again, in the last few years, dark energy, dark matter have come into play and we realized that the universe is extending at a greater rate than we thought. It looks like the expansion is accelerating. This has again thrown us into a situation where again, whoa, wait a second, we’re not entirely sure what our overall place is. We’ve gone from a situation that was geocentric where the earth was the center of the universe to heliocentric where the sun was the center of the universe, to being a pretty average planet and an average star, a part of a suburb of a very large galaxy. With the advent of dark energy, maybe we’re in a universe that’s going to expand forever. We just don’t know. I think it shows the power of how these observations and theories shape our own development.
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Exosolar planetary search
Scott Fisher
- Gemini North
There’s something extraordinary going on right now and all of us that are alive right now are going to be the generation that was alive when we first discovered planets outside of our own solar system and that is as big of a discovery that I can sort of wrap my head around.
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There’s something extraordinary going on right now and all of us that are alive right now are going to be the generation that was alive when we first discovered planets outside of our own solar system and that is as big of a discovery that I can sort of wrap my head around. Just in the last ten years we’ve gone from knowing no planets out there to knowing over 200 planets out there. Now, we haven’t taken a picture of them yet and we can’t see them exactly yet, but we see the effects of these planets that they have on the stars that they’re orbiting around.
That is a huge change in our knowledge. Until then, we just theorized and said, hey look, we think there are planets out there. You look up and you see all those stars, but to actually know that there are hundreds and probably thousands and millions of planets out there, that’s a fundamental change and I think the base of human knowledge.
Now what’s coming next, I think that the study of exosolar planets, which are planets outside our solar system, I think that’s going to be a very, very strong vein of astronomy research for the next ten to twenty years because we just scratched the surface. Just now we’re discovering these things and in the very recent past, in the last couple of years, we’re starting to characterize them in the sense that we’re starting to figure out what they’re made of, how big they are, what temperature they are and that sort of thing. So the study of these exosolar planets is going to be a main driver in the near future.
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