Making New Solar Systems @itelescopewebinars

Uploaded December 2022 | Updated September 2026, 2 weeks ago

Guest Speaker: William Balmer, Ph.D. Student, Johns Hopkins University
Summary: In this video, you will learn about the theory of star and planet formation. You will also see some amazing time-lapse images of exoplanets revolving around their stars. William begins by discussing how our solar system evolved. He then talks about the evolution of exoplanets, i.e., planets outside the solar system orbiting other stars. William discusses the apparent correlation between stars with high metallic content and the number of planets revolving around such stars. Generally, the higher the star's metallicity, the greater the number of planets orbiting it. He further shows simulations used by astronomers to understand star and planet formations from Giant Molecular Clouds (GMC). If you are interested in the science of exoplanets and star formations, this video is a must-see!

iTelescope itelescope.net
Solar System Formation from JWST webb.nasa.gov/content/forScientists/faqSolarsystem.html

Chapters
0:00 Introduction
2:47 Our expectations
16:15 Solar system formation: Theory
35:34 Solar system formation: observations
54:57 Latest from JWST

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#astrophotography
#deepsky
#astro
#astronomy
#cosmology

$The Grand Design: How Large Scale Structure Illuminates Cosmology and Particle Physics Title: The Grand Design: How Large-Scale Structure Illuminates Cosmology and Particle Physics– 8-09-2024 Guest Speaker: Abbe Whitford, PhD Student, University of Queensland, Australia. Summary: In this webinar Abbe presents how large-scale structures in the universe, of the order of GPCs (giga-parsecs), can inform scientists on cosmology and the nature of particle physics. She begins by explaining that the study of large-scales structure is important to help determine the distribution of normal matter, dark matter, and the radiation of the early universe, after the big bang. Right after the big bang, the radiation domination epoch began, where most of the energy was in the form of radiation. Over time the radiation decreased, and density of matter increased. As time continued, the dark energy domination epoch began, which is believed to be driving the expansion of the universe. On the other hand, early in the universe it is believed that neutrinos stopped interacting with other particles and started flying freely. Although it was believed that these particles had no mass, now it seems that they might have a small mass. Based on the analysis presented, the mass of neutrinos might have a direct impact on the structure of the universe. If you are interested in the study of cosmology and how it might have been influenced by neutrinos, this video will be for you. We hope you enjoy it! iTelescope https://www.itelescope.net The University of Queensland Australia https://www.uq.edu.au Astrobites.com https://www.astrobites.org/author/awhitford/ Chapters 00:00- Introduction 01:28- Using the Large-scale Structure of the Universe 06:05- Why do we care about the Large-scale Structure of the Universe? 11:39- Part 1: Uncovering the nature of the Universe with the motions of galaxies. 19:07- Poll Question 1 (How fast do you think the peculiar motion can be?) 20:47- Dark Matter Field vs Normal Matter Field 26:02- Poll Question 2 (What fraction of matter do you think is just the dark matter?) 28:57- The bulk flow motions of galaxies 39:33- CosmicFlows 4 dataset 43:22- Part 2: Using the sound waves in the early Universe to understand neutrinos. 44:39- Poll Question 3 (How fast did sound waves move in the early Universe?) 46:43- Sound Waves as Bubbles or BAO’s data results 51:57- How is this related to neutrinos? And firstly, what are neutrinos? 59:36- Questions and Answers #iTelescope #astrophotography #astronomy #astro #deepsky #cosmology$

The Lives and Deaths of Galaxies in the Universe