“Firefly Sparkle” Reveals Early Galaxy - YouTube - NASA Goddard - cosmology

Dr.Johnathan Gardner,Former Deputy Senior Project Scientist for JWST,presents the latest JWST images of the "Firefly Sparkle" galaxy,showcasing intricate details and structures.There is so much going on in this seemingly tiny galaxy,it appears like a swarm of fireflies on a warm summer night.This galaxy is gleaming with star clusters.This is the first time the NASA/ESA/CSA James Webb Space Telescope has detected a galaxy that existed around 600 million years after the Big Bang.This was made possible by a phenomenon known as gravitational lensing that was predicted by Einstein's Theory of General Relativity,in which the gravity of a large celestial object is strong enough to warp spacetime,allowing us to peer at a very distant celestial object.*Credit:NASA Goddard Spaceflight Center in Greenbelt,Maryland.*Cosmology is the study of the origin,evolution and structures of the universe.*Text by NASA Goddard and edited and augmented by Andrew Taylor

McConnell decries ‘dangerous’ polio vaccine skeptics amid RFK Jr. report - YouTube - MSNBC - political science

with Chris Hayes and Brandy Zadrozny,NBC News Senior Reporter*Commentary:RFK Jr. is an evil creep.If approved,he would cause an untold number of deaths from preventable diseases.Trump must withdraw his nomination immediately.

Space to Ground: A Wooden Satellite Dec. 13, 2024

with Sandra Jones

From the Team: Recovering the Artemis Spacecraft & Crew - YouTube - Orion Program Update - 13 DEC 2024

This week in 2022,the NASA Exploration Ground Systems Landing and Recovery Team and partners with the Department of Defense recovered a mock-up of the Lockheed Martin Orion spacecraft in the Pacific Ocean.Since then,teams and the Artemis II astronauts conducted Underway Recovery Test 11 in 2023 where they practiced reovering crew and the Orion spacecraft.Further tests are planned.*The Artemis II mission will launch from NASA Kennedy Space Center in April 2026.Its 10 day mission around the Moon will take humans farther from Earth than ever before.Crew members are NASA Commander Reid Wiseman,NASA Pilot Victor Glover,NASA Mission Specialist Christina Koch and CSA Mission Specialist Jeremy Hansen.*The recovery ship will be a Landing Dock Ship such as the USS Harpers Ferry (LSD 49).Landing Dock Ships are amphibious warfare ships equipped with a well deck for launching and recovering amphibious landing craft.*In this video,meet some of the Landing and Recovery team members.*Lockheed Martin (LMT)*Text by NASA Kennedy and edited and augmented by Andrew Taylor

What Does An Electron ACTUALLY Look Like? - YouTube - PBS Space Time - physics - new episode

An electron is a ball of energy.As Einstein discovered in his General Theory of Relativity,bound energy also has mass.An electron's classical radius is 2.818x10 (-15)m;but its true size is 10 (-17)m,or at least 100x smaller than the classical radius.Photons are excitations of the Electromagnetic Field.Electron and Positron pairs are excitations of the Electron Field and may annihilate one another.In Quantum Field Theory,each elementary particle,such as an electron,is an excitation of its own quantum field.Quantum particles consist of waves,but when we examine a specific particle,it becomes a point.*Dr. Matt O'Dowd is an Australian astrophysicist and presenter of PBS Space time and wrote this episode.

Corruption by a ‘narcissistic sociopath’: George Conway details warnings of Trump autocracy - YouTube - MSNBC - political science

with Joy Reid,Ruth Ben-Ghiat,New York University Professor and expert on authoritarianism,and George Conway,Conservative attorney and contributor to The Atlantic magazine*Commentary:Trump is a national disgrace obsessed with aggregating authoritarian power.

Raskin reacts to Trump saying Jan. 6 committee members ‘should go to jail’ - YouTube - MSNBC - political science

with Chris Hayes and Rep.Jaimie Raskin (D-Maryland),who is running unapposed for ranking Democrat on the House Judiciary Committee.*Commentary:Trump is a national disgrace for his attempted coups at the Capitol on 6 January 2021.