Alex Filippenko at TEDxBerkeley

Alex Filippenko received his Ph.D. in astronomy from Caltech in 1984 and joined the University of California, Berkeley faculty in 1986, where he is currently the Richard and Rhoda Goldman Distinguished Professor in the Physical Sciences. An observational astronomer who makes frequent use of the Hubble Space Telescope and the Keck 10- meter telescopes, his primary areas of research are supernovae, active galaxies, black holes, gamma-ray bursts, and the expansion of the Universe. Filippenko's research accomplishments, documented in more than 700 published papers, have been recognized with several major awards, including election to the US National Academy of Sciences. One of the world's most highly cited astronomers, he was the only person to have been a member of both teams that revealed the accelerating expansion of the Universe, propelled by mysterious "dark energy." This discovery was deemed the "Top Breakthrough of 1998" by the editors of Science magazine. The teams received the 2007 Gruber Cosmology Prize for their discovery, which was subsequently honored with the 2011 Nobel Prize in Physics to the leaders.
In the spirit of ideas worth spreading, TEDx is a program of local, self-organized events that bring people together to share a TED-like experience. At a TEDx event, TEDTalks video and live speakers combine to spark deep discussion and connection in a small group. These local, self-organized events are branded TEDx, where x = independently organized TED event. The TED Conference provides general guidance for the TEDx program, but individual TEDx events are self-organized.* (*Subject to certain rules and regulations)

[@ColleenCupido]

All 96 lectures from revised Great Courses. All 40 45 minute lectures, first edition. MAJOR influence in the astronomy imagery in my poems. And the great push to see s complete eclipse in Oregon in 2017. Thanks, Alex

[@sirmolio]

Just as amazing today (or at least in 2013 :P ) as he was in my intro Astronomy class at Cal in 1996. This guy is an astro-master.

[@JDLamps1]

I am humbled by it all.

[@Chance_Adams]

A truly great mind and great person.

[@luizeduardo4311]

Obrigado por traduzirem seus vídeos! 👏👏👏👏

[@DoctorZisIN]

Remember Newton? "The force of gravitational pull between two objects is inversely proportional to the square of the distance between them." So gravity fades with distance, but dark energy gets stronger with distance. LIke with all forces there is a balance point, or neutral point where they cancel each other out. Any closer and gravity wins. Any further and dark matter wins. Does that make sense?

[@virheck]

TE AMOO ALEX!!

[@bengalinsider2024]

Underrated

[@yoganandavalle]

He has a certain vibe and look to Robin Williams RIP.

[@Landrew0]

It doesn't quite add up. If space is expanding as a whole, why would our galaxy or our solar system be excluded? How could we know that only the space "out there" expands? How could it not be that all space expands everywhere?

[@lyricessence]

He didn't say it was. You flunk the pop quiz.

[@pedrox96]

Because the gravity within the galaxy cluster, in the inside of the galaxies, in the stellar systems, this gravity is enough to prevent the influence of dark energy and keep it all glued together. And that's only because a giant spider web of dark matter covers the galaxies. Dark matter is the thing preventing the influence of dark energy within the galaxies.

[@donhillsr1466]

GO SMALL THINK BIG Waves are caused by contact with Planck particles vibrating at an infinite rate. the speed of light. space density determines the net speed of light. the denser space, the slower.the travel time of light. See my unpublished Theory of Nothing

[@sickmsmokey]

Yikes...philosophy disguised as science.

[@erifrogs]

Science is based on philosophy. For example, Pythagoras, Aristotle, and not even hellenistic philosophers such as Sir Francis Bacon, Galileo, Ḥasan Ibn al-Haytham... (the list is endless) were both scientists and philosophers. Philosophy questions the world, science explains it. They walk hand in hand and depend and rely on each other. Hoped that helped 🌟