The galactic year, also known as a cosmic year, is the duration of time required for the Sun to orbit once around the center of the Milky Way Galaxy. One galactic year is 230 million Earth years. The Solar System is traveling at an average speed of 230 km/s (828,000 km/h) or 143 mi/s (514,000 mph) within its trajectory around the galactic center, a speed at which an object could circumnavigate the Earth's equator in 2 minutes and 54 seconds; that speed corresponds to approximately 1/1300 of the speed of light. The galactic year provides a conveniently usable unit for depicting cosmic and geological time periods together. By contrast, a "billion-year" scale does not allow for useful discrimination between geologic events, and a "million-year" scale requires some rather large numbers. (Wikipedia).
Astronomy - Ch. 2: Understanding the Night Sky (19 of 23) Tropical Year vs Sidereal Year
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain the difference between a tropical year vs a sidereal year.
From playlist ASTRONOMY 2 THE NIGHT SKY
People all over the world participated in NASA's #GlobalSelfie campaign on Earth Day, April 22, 2014. Some used very creative signs to say where they were on Earth.
From playlist #GlobalSelfie Photos - Earth Day 2014
Star and Galaxy Formation in the Early Universe
Okay, so at this point in the series we are about 150 million years into the lifetime of the universe. We've got a bunch of hydrogen and helium and not much else. But then gravity takes over, and boom! We've got stars! We've got galaxies! How, you ask? Well you'd better watch this! Watch
From playlist Astronomy/Astrophysics
From playlist 25 year celebration
Cosmic Journeys - Day of the Asteroid
Asteroids racing through the solar system have smashed into Earth before. What are the chances we'll get hit again? Armed with new defensive technologies, scientists are getting ready for the day, a decade, century from now: the Day of the Asteroid.
From playlist The Solar System
Astronomy: The Big Bang (1 of 30) Introduction
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain what is the The Big Bang and the age of our universe.
From playlist ASTRONOMY 25 THE BIG BANG
Universe Sandbox 2 - Galactic Year
Buy the game here: http://store.steampowered.com/app/230290 Twitter: https://twitter.com/WhatDaMath Facebook: https://www.facebook.com/whatdamath Twitch: http://www.twitch.tv/whatdamath Patreon page: https://www.patreon.com/user?u=2318196&ty=h Hello and welcome to What Da Math! In thi
From playlist Universe Sandbox 2
The Coolest Stuff on the Planet- Adios, Old Year: Hellooo, New Year!
The transition between one year and the next is a momentous occasion that is celebrated all around the world in a variety of ways. In this episode, Matt and Rachel take a look at some of these New Year's traditions -- and bid a fond adieu to 2010.
From playlist The Coolest Stuff on the Planet
How Virgin Galactic Plans to Send You to Space | Countdown to Launch
Space tourism is the next great frontier for mankind and Virgin Galactic is at the forefront with its innovative space planes. » Subscribe to Seeker!http://bit.ly/subscribeseeker » Watch more Countdown to Launch: http://bit.ly/CTLplaylist For years, Virgin Galactic has been known as the
From playlist Elements | Seeker
Leonard Nimoy on His Favorite Star Trek Episode: 'The Devil in the Dark' | History
Leonard Nimoy reveals his favorite Star Trek episode. 2-Hr Documentary Event Premieres Sunday August 14 8/7c. 50 Years of Star Trek” celebrates the iconic Star Trek franchise that has spanned generations and spawned a diehard cult following. Cast and creators, including Leonard Nimoy in o
From playlist 50 Years of Star Trek | History
Galactic Tides - Can We Feel Gravity From Supermassive Blackholes
Hello and welcome to What Da Math! In this video, we will talk about whether Galactic Tides have any effect on us. Patreon page: https://www.patreon.com/user?u=2318196&ty=h Enjoy and please subscribe. Other videos here: https://www.youtube.com/playlist?list=PL9hNFus3sjE7jgrGJYkZeTpR7ln
From playlist Universe Sandbox 2
Astronomy - Ch. 28: The Milky Way (4 of 27) Orientation of the Ecliptic Plane
Visit http://ilectureonline.com for more math and science lectures! To donate: http://www.ilectureonline.com/donate https://www.patreon.com/user?u=3236071 We will learn about the ecliptic plane of our solar system in relationship with our Milky Way Galaxy respect to theta=angle between g
From playlist ASTRONOMY 28 THE MILKY WAY GALAXY
Humans are the First Aliens. Here's Why.
Where are all the aliens?! This is the essence to the Fermi Paradox. It's most popular solution is the "Great Filter." What is the obstacle that life and/or intelligent species are unlikely to survive? Let's discuss. 00:00 Cold Open 00:18 Introduction 00:48 History of the Fermi Paradox 02
From playlist New to the Science Asylum?
Feeding a Black Hole - Lena Murchikova
More videos on http://video.ias.edu
From playlist Friends of the Institute
Huge Structure Found On Milky Way's Edge, But No One Knows What It Is
Good telescope that I've used to learn the basics: https://amzn.to/35r1jAk Get a Wonderful Person shirt: https://teespring.com/stores/whatdamath Alternatively, PayPal donations can be sent here: http://paypal.me/whatdamath Hello and welcome! My name is Anton and in this video, we will tal
From playlist The Milky Way
2021's Biggest Discoveries From Our Galaxy - Video Compilation
Hello wonderful person and happy new year! This is Anton and I'm currently on a mini break celebrating an addition to our family. As a result, enjoy this look back at the discoveries we've made from our galaxy in 2021 and see you very soon! Hope you enjoy them. Stay healthy and safe! Good
From playlist Long Science Videos
This channel's 1 year anniversary!!!
Thank you everyone for supporting me this year.
From playlist 1st anniversary
Gaia Telescope Discovers 5 Incredible Things About Milky Way Galaxy
I wrote a foreword for this awesome Sci-Fi book here: https://amzn.to/3aGrg0I Get a Wonderful Person shirt: https://teespring.com/stores/whatdamath Alternatively, PayPal donations can be sent here: paypal.me/whatdamath Hello and welcome! My name is Anton and in this video, we will talk ab
From playlist The Milky Way
Project Apollo: Shooting for the Moon
Project Apollo: the most famous space programme to date. In the final part of our trilogy exploring American’s first steps into space, we tell the tale of the Apollo program. Watch Project Gemini: https://youtu.be/rXTTXAJJkhc Watch Project Mercury: https://youtu.be/pa4S8h9HVY4 Day 20 of A
From playlist A Place Called Space
Detecting Ultra-Light Primordial Black Holes as a Dark Matter Candidate by Ranjan Laha
PROGRAM LESS TRAVELLED PATH OF DARK MATTER: AXIONS AND PRIMORDIAL BLACK HOLES (ONLINE) ORGANIZERS: Subinoy Das (IIA, Bangalore), Koushik Dutta (IISER, Kolkata / SINP, Kolkata), Raghavan Rangarajan (Ahmedabad University) and Vikram Rentala (IIT Bombay) DATE: 09 November 2020 to 13 Novemb
From playlist Less Travelled Path of Dark Matter: Axions and Primordial Black Holes (Online)